History Characters / ThatTimeIGotReincarnatedAsASlime

[[quoteright:350:https://static.tvtropes.org/pmwiki/pub/images/characters_ttigras.png]]
[[caption-width-right:350:And this isn't even showing some of the obscure characters.[[note]]From left to right: Gido, Ellen, Cabal, Treyni, Gabiru, Gobta, Ranga, Benimaru, Shuna,(not pictured Rimuru Tempest), Shion, Souei, Hakurou, Rigurdo, Kaijin, Geld II, Rigur II, Vesta? [[/note]]]]

[[/index]]

[[foldercontrol]]

[[index]]

* [[Characters/ThatTimeIGotReincarnatedAsASlimeDemonLords The Demon Lords]]

[[/index]]

!Otherworlders
[[folder:Shizue Izawa]]
!!Shizue Izawa
!!!Explosive Monarch
[[quoteright:300:https://static.tvtropes.org/pmwiki/pub/images/shizu_anime.png]]
-> '''Voiced by:''' Creator/YumiriHanamori (Japanese), Creator/DawnMBennett (English), Jocelyn Robles (Latin American Spanish)

Another human reincarnated into this world from the Tokyo Firebombings of UsefulNotes/WorldWarII, she is a Summon who houses the soul of the Fire Giant, Ifrit, and bears a deep connection to Rimuru's fate...
----
* BrokenAce: Shizu became a hero spoken of as "[[RedBaron The Explosive Monarch]]" and did plenty of good in her life fighting monsters, saving lives, and trying to help fellow Otherworlders where she found them. She was also deep down a woman who hated the world she was summoned into because it separated her from her mother and hated herself for possessing the power of Ifrit, since she periodically lost control and killed people she cared about. It's telling that when she dies, her DyingDream involves her reuniting with her mother while reverting back to her childhood self.
* CastFromLifespan: Overexerting her magic fighting a dragon caused her to age, though to be fair she is in her 70s-80s even if she appears otherwise.
* CoolTeacher: Actually the only one able to keep the Summons class in the Freedom Academy at Incracia in check. [[spoiler:At least until Rimuru took over.]]
* CoveredInScars: Under her clothes she still has the burns from her summoning, and she only survived them because Leon had Ifrit possess her.
* CursedWithAwesome: She suspects her youth might be a curse from the demon lord but is happy with it.
* CuteGhostGirl: While she's still very much dead and nobody can see her, she periodically makes appearances in ''The Slime Diaries'' from the afterlife. In episode 8 she straight up walked among the living since there was a festival with a "spirits will visit the living" belief that becomes literal in this world, while the rest of the time she simply looks out from Heaven to comment on things. As she can't actually interact with the living anymore, she frequently watches as her friends do things that tarnish her name and memory in harmless but embarrassing ways, such as seeing Rimuru running around wearing a bunny suit with her appearance or the Blumund trio being distracted from her memory by other things.
* ADayInTheLimelight: The anime has the entirety of episode 24 be dedicated to one of her past adventures, specifically detailing her meeting with the demon that would eventually be named "Diablo".
* DeathByOriginStory: Her character is basically there to die and in the process give Rimuru a human form and a few plot threads like Leon Cromwell and the children in Ingracia. The light novel and further adaptations flesh her out a bit more, but the basics remain the same.
* DemonicPossession:
** When Ifrit originally took her over, he used her body as a vessel, but she was eventually able to take back control thanks to a hero and the use of her Anti-Demon Mask. However, recently, Ifrit began to regain strength thanks to her own own dwindling lifespan, and ultimately she falls back under it and forced to fight Rimuru. [[spoiler:However, it should be noted that Leon did this specifically to extend her lifespan, as she wouldn't have survived the burns from her summoning otherwise.]]
** The anime also changes the nature of the possession to a minor extent. In the manga, Shizue completely lost herself to Ifrit upon her original possession and only regained herself thanks to being defeated by a hero and gaining her mask. In the anime/light novel, Shizune had more control, but Ifrit could usurp her against her will if he sensed a threat in Leon's presence. The amount of time she could go without wearing the mask without risking losing herself again to Ifrit is also much smaller in the manga.
* FlamingSword: One of her preferred tactics is to wreathe her blade in fire to increase its destructive power.
* ImHavingSoulPains: Due to the fact that Ifrit is slowly starting to regain control as her life nears its end.
* InSeriesNickname: "Shizu," which was originally coined by her summoner after she told him her name as "Shizu...e" and he took it as "Shizu E."
* TheLostLenore: To Rimuru. While it is unknown if he had romantic feelings for her, her death left a significant impact on him as he swore to take care of the summoned children that she taught and confort Leon Cromwell for his actions towards her.
* MaskOfPower: Her CoolMask isn't just for show, it has anti-demon properties which helps her suppress Ifrit's influence on her mind and body. Rimuru eventually takes it as a MementoMacGuffin.
* MindControlEyes: When they turn [[RedEyesTakeWarning glowing red]], that's when Ifrit starts taking over Shizue's mind.
* MyGodWhatHaveIDone: Had [[HeroicBSOD a really bad one]] in the past when Ifrit took her over and made her torch her fellow child friend and her monster pet to ashes upon viewing said pet as a threat to Leon. (Anime/Light novel only; in the manga, [[DemonicPossession once Ifrit is inside her she doesn't regain control for quite some time.]])
* OhCrap: Shizue has one every time Ifrit starts taking her over.
* OlderThanTheyLook: She was reincarnated during UsefulNotes/WorldWarII as a child, which would put her in her 70s to 80s, but she still looks barely over her mid-20s at latest. This actually helps her keep up a disguise along with her nickname of Shizu, as none of her fellow adventurers realize that she's actually the retired hero known as "The Explosive Monarch."
* PlayingWithFire: Gains this as a result of her possession by Ifrit.
* PosthumousCharacter: She only had the barest amount of character about her detailed while she was alive, just enough to make Rimuru and the audience sympathetic to her plight. The vast majority of her character, both in terms of personality and how she affected the world, gets revealed over time through the story long after she perished and got absorbed by Rimuru.
* RedBaron: When going by her real name of Shizue Izawa, she was known throughout the land as the "Conquerer of Flames", both because she had the flame spirit Ifrit possessing her, and because she maintained control over the spirit and utilized it's fiery powers to help others.
* RetiredBadass: She's apparently been retired for ''50 years'' according to the adventurers.
* {{Revenge}}: She hates Leon Cromwell for summoning her half-dead from flames, having Ifrit [[DemonicPossession take over her body]], and then abandoning her to fight a hero as a sacrificial pawn. Her desired goal before dying was to find and hurt him for all of it, and asks Rimuru to do the job for her as part of her LastRequest. Of course, the truth is a bit more complicated than that...
* ScarsAreForever: Magic can't heal her burn scars because merging with Ifrit stabilized her body to its current state.
* SpitTake: Did one when Rimuru said he wasn't a bad slime because it reminded her of Yuuki talking about ''VideoGame/DragonQuest''.
* TogetherInDeath: Gets reunited with her mother once she finally passes.
* TransformationOfThePossessed: Happens to her when she fully loses control of Ifrit. She goes back to normal when Rimuru uses Predator on him and thus separates them.
* WizardsLiveLonger: Stopped aging at 16 or 17 thanks to either Ifrit or the demon lord.
* YourDaysAreNumbered: Despite her [[OlderThanTheyLook youthful appearance]], Shizu is quite old, in her 70s at best, and is at the end of her life. She left her retirement to exact her revenge on Leon Cromwell for summoning her from her original world, but her trip was cut short as she had no more strength to contain [[DemonicPossession Ifrit possessing her]]. Though Rimuru [[CurbStompBattle ended up beating the fire spirit quite handily]], thus freeing Shizu, the strain of combat was too much for her (not to mention Ifrit actually [[PhlebotinumMuncher keeping her alive all that time]]) and she died soon after the fight.
* YouWillBeAssimilated: On her deathbed, she tells Rimuru to absorb her using [Predator] to gain her powers and fulfill her {{Last Request}}s (to save the summoned children and to take revenge on Leon for her). Rimuru doing so is what allows him to regain a human form at last, which looks like a younger blue-haired, golden-eyed version of Shizue herself.
[[/folder]]

!!Summoned Children

[[folder:The Summoned Children in General]]
A group of five small children who, like Shizu, were summoned in order to turn into Heroes. However, because the process of summoning has some unforeseen consequences, the children now only have a few years left to live.

It is Rimuru's mission now to help the children move past their life expectancy, as Shizu's last desire.
----
* AlwaysSecondBest: All of them are this to Chloe, but it's most noticeable with Kenya. Unlike the others, who merged with Superior Spirits Rimuru created from fusing multiple minor spirits together, Kenya bonded with the Spirit of Light who outright blesses Heroes with divine protection and told him he has the potential to be a Hero just like Shizu, and he's one of the most skilled swordsmen of the bunch after his training. [[spoiler:Unfortunately for him, Chloe merged with her future self that's basically a demigod, he self-admits she's a better swordsman over him, and she's ''the'' True Hero]].
* FiveManBand:
** TheLeader: Kenya, the HotBlooded and impulsive leader.
** TheLancer: Ryota, TheStoic and shy boy compared to Kenya.
** TheSmartGuy: Gale, the oldest and wisest member of the group.
** TheBigGuy: Chloe, the most talented and strongest member of the group.
** TheChick: Alice, the SpoiledSweet of the group, who is very caring once you get past her haughty demenour.
* FusionDance: Power Booster variation. They all go through this in order to stabilize their magicule levels with Superior Spirits.
* HeroicRROD: The origin of their shortened lifespans. Summoned Otherworlders have an immense number of magicules but children do not usually inherit the Unique Skills necessary to put them to sufficient use. Pair that with the strain of containing such power on an immature body and children summoned to the Otherworld will eventually have their bodies destroyed due to their own power.
* MagicKnight: They become this thanks to their training under Rimuru, Hakurou, and Hinata, becoming equally versed in using weapons as much as their Skills and magic.
* MasterSwordsman: Kenya is the straightest example of the bunch since he's the one who mainly relies on a sword, but all of them have some swordsmanship skills at their disposal.
* SharingABody: All of them are this thanks to being fused with Superior Spirits, and even have the ability to communicate with them to some extent.
* TeacherStudentRomance: Alice is implied to have [[PrecociousCrush feelings for Rimuru]] at first, but she seems to get over them as the story hints she's growing a thing for Kenya. Chloe, on the other hand...
* TwoGirlsToATeam: Chloe and Alice are the only girls in the class, with the rest being boys.
* YourDaysAreNumbered: When Rimuru first meets them they only have a few years left to live, since the magicules in their bodies will eventually collapse if nothing is done about them. This ceases to be an issue once Rimuru and Ramiris stabilize them with the power of spirits.
[[/folder]]

[[folder:Kenya Misaki]]
[[quoteright:150:https://static.tvtropes.org/pmwiki/pub/images/kenya_anime_2.png]]
-->'''Voiced by:''' Ayaka Asai (Japanese), Creator/BrittanyLauda (English)

One of the five Summoned Otherworlder children taught by Shizue Izawa. He is shown to be the unofficial leader of the Class S children and one of the kids who was most mistrustful of Rimuru upon meeting him.
----
* AffectionateNickname: His friends affectionately call him "Ken".
* AwesomeButImpractical: Kenya has a habit of doing this. When Rimuru first mock-battled him, he had a habit of using flashy attacks with long windups that wasted his energy when they missed. Even after he gets proper training, he starts incorporating moves from various manga into his swordsmanship that look cool or have ConfusionFu style tricks, but they use overextending movements and have openings a quick enough foe could easily take advantage of.
* ElementalHairColors: He has orange hair and his prefered magic is to use fire-based attacks, like Shizu.
* TheHero: His possession of the Spirit of Light showcases that he has the possibility to become a Hero in the future.
* TheLeader: He is considered the unofficial leader of the group, which is further enhanced when he gets his spirit which marks him as a potential Hero.
* PlayingWithFire: Kenya's introduction involves him launching a flaming SwordBeam at Rimuru the moment he enters S-Class, and complaining that he missed. Rimuru is quick to note that he tends to just throw fire around, however, and that his flames aren't anywhere in the ballpark to Shizue's.
* PuppyLove: It's heavily implied that Kenya has a crush on Alice, though [[LovingBully he only knows how to express himself by challenging her to fights]].
* SpikyHair: He has spiky orange hair, befitting his HotBlooded status.
[[/folder]]

[[folder:Ryota Sekiguchi]]
[[quoteright:150:https://static.tvtropes.org/pmwiki/pub/images/ryota_anime_3.png]]
-->'''Voiced by:''' Creator/ShizukaIshigami (Japanese), Creator/ApphiaYu (English)
One of the five Summoned Otherworlder children taught by Shizue Izawa.
----
* ArcherArchetype: His weapon of choice is a bow.
* TheBerserker: Ryouta Sekiguchi is usually quiet and timid, but his special ability sends him into an animalistic berserk state where he runs on all fours, clawing and biting at his opponents.
* MakingASplash: Ryouta after he receives training is able to use water magic as well, combining it with [[BlowYouAway wind magic]] for impressive combos.
[[/folder]]

[[folder:Gale Gibson]]
[[quoteright:150:https://static.tvtropes.org/pmwiki/pub/images/gale_anime.png]]
-->'''Voiced by:''' Gen Sato (Japanese), Creator/JustinBriner (English)

One of the five Summoned Otherworlder children taught by Shizue Izawa.
----
* BigBrotherInstinct: When Gale and the others visited the Dwelling of the Spirits, he asked Rimuru to take care of the other summoned chidlren if anything were to happen to him.
* BladeOnAStick: His prefered weapon of choice is a spear.
* DishingOutDirt: Gale is able to manipulate earth's structure and composition, allowing him to make it as hard as steel. It's noted it's actually [[MundaneUtility very useful for agricultural purposes]].
* HandBlast: Gale showed the ability to fire powerful magic bullets from his hands.
* LuckilyMyShieldWillProtectMe: He wields a shield, which he uses mainly to defend himself and his allies from attack.
* SummonMagic: After obtaining his Superior Spirit and training with it, he has shown the ability to summon a earth spirit named Beast Gnome.
[[/folder]]

[[folder:Alice Rondo]]
[[quoteright:150:https://static.tvtropes.org/pmwiki/pub/images/alice_anime.png]]
-->'''Voiced by:''' Creator/HarukaShiraishi (Japanese), Creator/SarahWiedenheft (English)

One of the five Summoned Otherworlder children taught by Shizue Izawa.
----
* GirlsLoveStuffedAnimals: Alice has trio of stuffed animals that she is shown to be fond of. She can also animate them via her powers.
* MarionetteMaster: Alice is able to levitate and manipulate dolls. Rimuru thinks to himself that she would be more effective if these dolls had claws, or if she could control other tougher stuff. After her training, that's exactly what she does by not only switching up for metal dolls armed with various weapons, but she can also suspend a number of swords in the air to launch as a Storm of Blades or control telekinetically.
* {{Ojou}}: While it is unknown if she comes from a wealthy family, she has all of the mannerisms and behavior of one. After she gets her training, she starts to insist she be called "Empress" by her fellow children.
* SpaceMaster: She can manipulate the Spacial element due to her spirit.
* SpoiledSweet: Despite her haughty demenour, she is shown to be quite kind and caring towards her friends and people who have earned her trust like Rimuru.
* StormOfBlades: After obtaining her Superior Spirit and training with it, she showed the ability to levitate and control a large number of small blades, which she can use to attack others at a distance.
[[/folder]]

[[folder:Chloe Aubert ('''MASSIVE UNMARKED SPOILERS''')]]
!!Chloe Aubert
!!!Hero Chronoa
[[quoteright:150:https://static.tvtropes.org/pmwiki/pub/images/chloe_anime.png]]

-->'''Voiced by:''' Creator/AzusaTadokoro (Japanese), Creator/EmilyNeves (English)

One of the five Summoned Otherworlder children taught by Shizue Izawa, Chloe at first seems to merely be a girl with notable talents even among them. In reality, she [[TimeTravelTenseTrouble was/is/will be]] a True Hero responsible for many notable feats in the backstory of the setting, all in her goal to save Rimuru Tempest from a horrible fate...
----
* AffectionateNickname: Her friends affectionately call her "Chlo".
* BewareTheNiceOnes: Crosses over with BewareTheQuietOnes as well. Chloe is usually a kind quiet girl who is slow to anger compared to Alice. When she actually does get angry, her friends are all in agreement she's the scariest of them, and she legitimately frightened Rimuru during their mock battle by how calmly ruthless she got about using the water-blade-prison spell as a threat if he didn't surrender. That's even all ''before'' she becomes the WorldsBestWarrior.
* ChildhoodFriend: Chloe is one for Leon Cromwell. Specifically, when they were both caught up in the Summoning, she ended getting caught in a time distortion that sent her to the future, leaving him desperate to try and find her.
* DeityOfHumanOrigin: Chloe's future self -- who travels back in time to stabilize her child-self -- is a Demigod, a divine entity surpassing both Heroes and Sages. Ramiris is terrified of her, though she does little more than kiss Rimuru and indwell her past self.
* FusionDance: Compared to the other Summoned Children, Chloe and her future self take this a step further when they fully fuse, allowing Chloe full access to her future self's powers and memories (up to the ability to assume her adult form) while also being influenced by her personality.
* FutureBadass: Both this and PrecursorHeroes as well due to some TimeyWimeyBall shenanigans. Chloe as she is in the present is a powerful fighter but still an inexperienced child with a lot to learn. Her adult self is so powerful she can challenge some of the strongest beings in the world and have a shot at winning.]
* IdenticalStranger: It's not directly commented upon, but Chloe has a ''lot'' of similar traits to Shizue, specifically longish black hair and blue eyes. It's heavily implied it was these shared traits that resulted in Shizue even being summoned in the first place, as Leon had been keying his summonings to specific triggers to try and summon Chloe specifically.
* MakingASplash: Chloe can control water to such a degree she can trap people in a sphere of swirling water and then form blades in said water to slice her victims apart.
* MasterSwordsman: All of the children get at least some swordsmanship training to varying degrees of proficiency, but Chloe is the standout. Her skills with the sword improve so much ''Hakurou and Hinata'' both believe she will surpass them with time. She's also able to deflect a surprise attack by Guy while in a sitting position after she's merged with Chronoa, and subsequently parry all of his probing slashes before Rimuru steps in between them.
* MyFutureSelfAndMe: Chloe is indwelled by the time-travelling divine spirit of her future self, which according to Ramiris creates a time loop. Specifically, "future" Chloe is a Manas called "Chronoa" that is the result of Chloe constantly trying (and failing) to save her loved ones through multiple time leaps and her personality becoming more warped and cold from all the trauma.
* PrecursorHeroes: As part of the TimeyWimeyBall she's stuck in, Chloe is part of a chain of heroes that goes Chloe --> Shizue --> Rimuru --> Chloe, making her a precursor to herself.
* RippleEffectProofMemory: Played with. Chloe doesn't start remembering her past journeys until she merges with her future self in the current loop, and even then she can only recall the last loop with good accuracy while past loops filter in and out. Hinata speculates this is similar to how even a normal human can't perfectly recall every past memory.
* SharingABody: Chloe takes it up a notch as not only does she host the spirit of her future self, but at one point she ends up hosting Hinata's spirit inside her during a 2000 year time jump to the past.
* StableTimeLoop: Chloe is part of a convoluted time loop, according to Ramiris. She's the Hero who sealed Veldora, who Leon was seeking to summon, and who Shizu admired and got her mask from in the past; having become a [[DeityOfHumanOrigin Demigod]] after countless time loops.
* TeacherStudentRomance: Chloe develops a PrecociousCrush on Rimuru, who laments that she should have [[JailbaitWait waited until they were 18 or 20 to confess]].
* TimeMaster: Chloe's true power, which originally manifests as the Unique Skill [Time Travel] (which is ExactlyWhatItSaysOnTheTin in a limited form) before evolving with Raphael's aid into the Ultimate Skill [Space-Time King Yog Sothoth], which allows her to control, stop, and travel through time at will. When she fully fuses with her future self, it evolves into [Space-Time God Yog Sothoth Hortz], which boosts this power to PhysicalGod tier levels.
* WalkingSpoiler: Chloe's role in the story is incredibly significant, to the point that discussing anything about her at length can lead into heavy spoiler territory.
* WorldsBestWarrior: Chloe [[TimeTravelTenseTrouble will eventually/has become]] this as the greatest Chosen Hero known throughout the world, possessing raw power to match a True Dragon combined with the swordsmanship honed from training under some of the greatest masters known in the world.
[[/folder]]

!Others
[[folder:Orc Disaster]]
!!Geld
!!!Orc King/Orc Lord/Orc Disaster
-> '''Voiced by:''' Creator/KenjiNomura (Japanese), Jim Foronda (English)

Formerly a nameless Orc King who wanted to save his people from famine, he was granted a name by the demon Gelmud under the orders of the Great Demon Lord Clayman. Obtaining the Unique skill Starved, he was meant to become a Demon Lord capable of conquering and ruling the Jura Forest as their pawn.
----
* AdaptiveAbility: As he's being burned by Rimuru's [[PlayingWithFire Flare Circle]], he develops the Heat Resistance skill to tank the rest of it.
* AlasPoorVillain: [[spoiler: His death is portrayed as such. Rimuru killing him was clearly a MercyKill, to which the Orc Lord thanked him for allowing him to rest in peace.]]
* AntiVillain: His people were starving, and he joined forces with Gelmud in order to save them.
* TheAssimilator: His Starved skill functions similarly to Rimuru's Predator skill in that they both provide the potential for infinite growth by devouring others and adding their powers and skills to their repertoire.
* AuthorityEqualsAsskicking: The leader of the Orcs and the strongest. While his soldiers were easily dispatched by Rimuru's subordinates, he was too strong for them, and Rimuru was forced to step up in order to deal with him.
* BenevolentBoss: Even after succumbing to hunger, he still loves his people. And while eating one of your own men for a power boost and healing would normally be a MoralEventHorizon, the orc in question willingly offered himself up and didn't struggle even as he was being devoured.
* DragonAscendant: [[spoiler:Technically, he's already the DragonInChief for Gelmud and by extension Clayman, but upon deciding to take Gelmud's order to evolve to the Orc Disaster to heart, he [[OffWithHisHead chops Gelmund's head off]] and eats the corpse to do it, becoming the main antagonistic force for the arc.]]
* DyingAsYourself: [[spoiler:His spirit passes on not in the form of the Orc Disaster, but the Orc King he once was.]]
* EvilIsBigger: He is nearly three times the size of a regular orc and about twice as big as his Orc Generals.
* {{Expy}}: Of [[Franchise/TheLegendOfZelda Ganon]]. Both of them are giant pig-man who became a warlord and demon king after they were driven to desperation watching their people suffer in a desert waste.
* TheGoodKing: To the orcs. He was willing to abuse his HealingFactor and tear off his own limbs in spite of the pain to provide them ''some'' sort of food.
* HealingFactor: Not only does he possess regeneration and healing magic, he can also devour others to quickly restore his stamina. It's so potent Hakurou [[OffWithHisHead slicing his head off]] just slows him down and Rimuru is forced to use Predator on him to win (and even then, he resists it longer than any other creature before him). Even when he was still nameless, he didn't think anything of tearing off his own limbs and letting his starving people eat them since they would just come back.
* IHaveComeTooFar: He tells this to Rimuru. After eating his benefactor, his own brethren and even several others, he feels that he cannot afford to lose.
* ImAHumanitarian: Since he can't absorb things like Rimuru, this is the only way Geld can actually use his Starved skill to the fullest. "Helping" is the fact it also gives him HorrorHunger so that he's not too picky about the act of eating anything in front of him.
* KickTheSonOfABitch: [[spoiler: Him killing and devouring Gelmud is not portrayed as horrifying to say at least.]]
* KnifeNut: Wields a [[{{BFS}} large machete as big as a man]]...but compared to his own size it's practically just a butcher knife.
* LargeAndInCharge: By far the largest of all the Orcs, even before his ascension to the Orc Disaster.
* PowerCopying: After [[spoiler:devouring Gelmud]], he gains the ability to use [[DeathFromAbove Death March]] [[BeamSpam Dance]].
* StrippedToTheBone: Predator strips him of all his flesh and leaves him a skeleton. ''He's still clinging to life'' even then [[spoiler:and only gives up in full with Rimuru's promise.]]
* SuperStrength: He can match Shion's strength with ease.
* TragicMonster: His underlying tragedy is that he's TheGoodKing driven to monsterous depths by evil benefactors, and he ''knows'' he's being manipulated but won't be able to save his starving people otherwise.
* UnwittingPawn: {{Subverted}}. He admits to Rimuru [[spoiler:as he's being absorbed]] that he knew Gelmund was all but certainly using from the start, but he viewed the situation as a DealWithTheDevil issue since to refuse would likely condemn his people to starvation.
* WakeUpCallBoss: The first opponent Rimuru fights who legitimately provides a challenge ([[PlayingWithFire Ifrit]] was only an issue due to Rimuru [[ForgotAboutHisPowers not remembering he had Heat Resistance]] and the risk of weaker bystanders), due to possessing powerful attacks that require dodging or intentional nullification instead of simply straight-up {{No Sell}}ing and possessing a ludicrous HealingFactor.
* WellIntentionedExtremist: All he wanted was to save his people from a famine, no matter the cost. Rimuru promising to save them is what allows him to [[FaceDeathWithDignity accept his death with grace]].
* TheWorfEffect: Despite taking a good amount of damage from their assault, he proves to be too strong for the oni and Ranga to best, showing the gap between them and a Orc Disaster. He then gets this at the hands of Rimuru, whose Predator Skill is superior to his Starved one.
* WorfHadTheFlu: While he did in fact evolve thanks to all the monsters he ate [[spoiler:including Gelmund]], Geld still didn't ''complete'' his evolution because he didn't devour any human souls to finish his awakening into a True Demon Lord.
[[/folder]]

[[folder:Charybdis]]
An ancient monster of immense power, known as the Ruler of the Skies. Sealed away by an ancient hero, it is unleashed with the intent of bringing calamity to Tempest.
----
* AnimalisticAbomination: It is a one-eyed vaguely shark-like monster -- with ray-like wings in the anime, defies gravity, possesses enough power to wipe out a country, and was born from a cloud of Veldora's magicules -- technically making it Rimuru's sibling.
* CameBackWrong: [[spoiler:The Charybdis born from Yamza being forced to swallow its core fragment is explicitly noted to be weaker than the original, to the point even with it assimilating every source of magicules nearby it could grab (including several fallen majin and the [[AnIcePerson Ice Blade]]), it would have self-destructed on its own within a day. Of course, it being born on the chaos of the battlefield makes destroying it a top priority regardless for the collateral damage.]]
* CurbStompCushion: It withstands everything Rimuru's army throws at it and even fights Rimuru himself to a stalemate, but is effortlessly defeated by Milim who considered the fact she didn't kill Phobio in the process to be a sign of her ''restraint''.
* DegradedBoss: [[spoiler:Clayman's subordinate Yamza is forced to consume a fragment of its core after he's beaten by Albis and about to surrender, due to a post-hypnotic suggestion from his boss. It's weaker than the original, but still powerful, and it inherits Yamza's Doppelganger skill, which means that it can clone itself, and the [[AnIcePerson Ice Blade's power]]. Benimaru takes it down singlehandedly thanks to having TookALevelInBadass due to Rimuru's Harvest Festival.]]
* DemonicPossession: As a spiritual entity, it needs a host in order to manifest. Phobio is tricked into becoming its host by Tear and Footman.
* DragonAncestry: Indirectly, as it is an AnimalisticAbomination spawned from Veldora's magical energy.
* EnemySummoner: When summoned, it manifests a school of Megalodons -- flying shark-monsters -- using dragon corpses.
* FlechetteStorm: It can fire its denticles/scales as razor-sharp homing projectiles.
* GravityMaster: It can manipulate gravity to enable itself and its Megalodons to fly.
* HealingFactor: It possesses Ultra-Speed Regeneration, the highest level of self-healing, which allows it to shrug off and heal away any damage that doesn't utterly destroy it in one shot. Unfortunately for it, Milim possesses such capacity to incinerate it so badly it can't heal away the damage. [[spoiler:So did Benimaru thanks to [[TookALevelInBadass getting a badass upgrade]] following Rimuru's evolution, using his Black Flames to make short work of it (admittedly a weaker version) seconds after it was forcibly reborn.]]
* NoSell: Its special ability, Magic Jamming, makes it immune to magical attacks. Unfortunately for it, Milim's [[BeamSpam Drago-Buster]] isn't magic.
* RoaringRampageOfRevenge: Owing to its host being Phobio, it attacks Tempest looking to kill Milim.
* SealedEvilInACan: It was sealed away by a hero in the distant past, though Tear and Footman trick Phobio into unsealing it and becoming its vessel by saying it will give him the power to kill Milim.
* WorfHadTheFlu: [[spoiler:The Charbydis created from Yamza being forced to eat a core fragment is explicitly noted to be weaker than the original Charybdis, even if it possesses powers the original doesn't, and would have self-destructed on its own within a day. As such, Benimaru destroying it with one Hell's Flare, while impressive, still puts him well beneath the likes of Milim.]]
[[/folder]]

[[folder:Veldanava]]
!!!Stellar Dragon King

''The'' most powerful True Dragon and strongest being in all of the multiverse. Currently dead, but his legacy has left a profound impact across the world millenia after the fact, and there are those who would seek to use that power for their own ends.
----
* DragonsAreDivine: UpToEleven. While his other True Dragon siblings can be considered gods, Veldanava was {{God}} with a capital G.
* GodIsGood: In spite of his power, everyone who has something to say about Veldanava remembers him as a noble and generous soul.
* HappilyMarried: To [[InterspeciesRomance the human Lucia]], with whom he had his daughter Milim. He would happily gush about her to his siblings, and it was through these descriptions that Veldora would actually come to understand standards of human beauty.
* TheMaker: It was Veldanava who created the multiverse, the various dimensions, and the main world the story takes place on. He also established the Voice of the World, along with the evolution and Skill systems.
* MonsterProgenitor: When Veldanava abandoned his old dragon body to take a human form [[spoiler:after his existence became unstable due to the massive power loss from siring Milim]], its decaying form spawned the mortal Dragon race.
* ThePowerOfCreation: Creation Lord Ahura Mazda allowed Veldanava to create anything of his choosing as long as he had the sufficient knowledge and power to do so. [[spoiler:This made Information King AkashicRecords a ''very'' useful RequiredSecondaryPowers]]. Notably, this seemingly was never inherited by another being after his death unlike how Michael went to Rudra and Uriel to Rimuru, [[spoiler:until it's revealed Yuuki's Unique Skill Creator is in fact a degraded version of it.]]
* StarPower: He was called the Stellar/Star King for a reason. One of the powers he used to create the multiverse from nothingness was "Stardust".
* SuperpowerLottery: Oh, where to begin. First of all, he's a [[DragonsAreDivine True Dragon]], a creature akin to a force of nature or god able to destroy the world at bare minimum. He also had no less than three Ultimate Skills: [[TheArmiesOfHeaven Justice King Michael]], [[SpaceMaster Covenant King Uriel]], and [[ThePowerOfCreation Creation Lord Ahura Mazda]]. [[spoiler:And then there's Information King AkashicRecords, which gave Veldanava knowledge of everything in existence and supplemented his ability to ''create'' anything.]]
* WorldsStrongestMan: ''The'' most powerful being in the world hands down, possessing some of the most broken Skills alongside incredible and unmatched magical and physical might in the entire series. His sibling True Dragons together could barely compare to him, and he handed [[DemonLordsAndArchdevils Guy Crimson]] the greatest CurbStompBattle of his life to the point the prideful Primordial would only acknowledge him as his superior. And this was ''after'' he willingly gave up being both TheOmnipotent ''and'' TheOmniscient. It's telling he only died after he was BroughtDownToNormal due to willing sacrificing much of his power over millennia through various acts.
[[/folder]]
----

!The Kingdom of Blumund

[[folder:General]]
A small kingdom located to the northwest of the Forest of Jura, that becomes the first human country to acknowledge Tempest as a nation.

* TheGoodKingdom: Despite being one of the weaker countries in the world, its citizens are shown to be good people as Blumund was the first human country to accept Tempest and some adventurers and knights from Blumund offered to fight alongside Tempest when Famulth invaded the latter.
* MicroMonarchy: Blumund is considered one of the smaller countries among the Western Nations, as they do not possess the wealth, influence or military might of larger countries such as Famulth or Ingracia.
* PragmaticHero: While they do develop a friendly and amicable relationship with Tempest, it was originally predicated on the fact that Tempest could easily destroy a country as small as Blumund and to take advantage of being allied with Tempest such as their military capabilities.
* TheSpymaster: Blumund is too small a nation to support a notable military or vast economic exports. Instead, they rely on being some of the foremost intelligence gatherers in the Western Nations.

[[folder:Fuze]]
[[quoteright:200:https://static.tvtropes.org/pmwiki/pub/images/fuse.png]]
[[caption-width-right:200: Guildmaster of Blumund]]
-> '''Voiced by''': Creator/KenNarita (Japanese), Creator/MikeMcFarland (English)

A regional Guildmaster for the kingdom, he's a local administrator of the powerful Adventurers' Guild, and a childhood friend of the nation's Prime Minister Baron Velyard, making him quite an influential person in the region. Befriends Rimuru rather fast, and is his frequent guest [[TheChessmaster and co-conspirator]].

* AuthorAvatar: Being named the same as the author's pen name, has raised a whole lot of suspicions.
* TheCavalryArrivesLate: When Falmuth launched the declaration of war on Tempest, Fuze gathered together as many soldiers from Blumund as he could and raced towards Tempest, already planning out a gureilla campaign and taking a roundabout, more difficult route to avoid running headfirst into the Falmuth military. [[spoiler:He's a bit put out to learn that Tempest (or rather mostly Rimuru) already defeated the Falmuth army and the major crisis is over, though he still stays as the fallout from this needs to be discussed among Tempest's allies.]]
* TheChessmaster: Is heads-deep in the politics between his kingdom, the Guild and the whole host of plots around Tempest's meteoric rise.
* ChildhoodFriends: With Velyard, which helps them both due to their high positions.
* DaChief: As Guild is often relied on to provide policing in urban areas, with some adventurers in effect becoming a career police officers, he's that as well.
* FaintInShock: Fuze faints after learning that Veldora is resurrected from Rimuru.
* ScrewTheRulesIHaveConnections: Despite technically being just the Blumund Guildmaster, his close connections with the Prime Minister and the king means he's got a lot more pull than one might expect. Although, he occasionally finds it more trouble than it's worth because they have a habit of relying on him for jobs ostenisbly above his paygrade, including being Blumund's unofficial ambassador to Tempest and dealing with Rimuru's [[SpannerInTheWorks game-changing actions]].

[[folder:Bulud von Blumund]]

The King of the nation of Blumund.

* TheGoodKing: He immediately agreed to an alliance with Tempest, and responded to Falmuth's sham of a PretextForWar by sending Fuse with an entire cavalry brigade.
* IGaveMyWord: He agreed to an alliance with Tempest to help when needed, and he didn't hesitate to send in the Cavalry (even if it ultimately was unneeded).
* ObfuscatingStupidity: On the surface, he pretends to be a well meaning but naive king, but as Rimuru noted, he is actually a rather ambitious and decisive man.
* ReasonableAuthorityFigure: His first interest is the well-being of his people, and then his allies. He was the one who decided to join Rimuru's cause before the slime even arrived, over the advice of his advisors, citing that the nation would not survive them as an enemy, and that the church would not consider them worth protecting.

[[folder:Baron Velyard]]
-> '''Voiced by''': Creator/ItaruYamamoto (Japanese), Creator/DavidWald (English)

Blumund's Prime Minister and a close friend of Fuze.

* BlueBlood: He's a baron, but that's actually far less impressive than it sounds because Blumund is so small the "nobility" are basically just feudal lords of villages. Velyard himself is actually a landless baron who lives in the capital, which is the only large city in the country.
* TheChessmaster: Is heads-deep in the politics between his kingdom, the Guild and the whole host of plots around Tempest's meteoric rise. He was the one who worked out the mutual agreements between Blumund and Tempest, and negotiated so that Blumund had the most benefits to its side of the deal. Rimuru wasn't angry since he got duped into it, but used this as a lesson for future negotiations.
* ChildhoodFriends: With Fuze, which helps them both due to their high positions.
* SleazyPolitician: {{Averted}}. He's scheming and willing to do underhanded things, but he's loyal to his country and those actions are in service of ensuring Blumund comes out on top, especially since Blumund can't afford to fight things out in wars either military or economical.

!! Cabal's Party
[[folder:General]]
* BigEater: They have a habit of excessively indulging in food, especially the delicious cuisine of Tempest.
* EmbarrassingNickname: Fuze nicknamed them the "Three Fools of Blumund" due to the fact that they ignore his orders to bring Rimuru directly to him and nearly revealed Rimuru's identity to the other members of the Blumund Adventures Guild.
* FighterMageThief: Cabal is the fighter, Ellen is the mage and Gido is the thief.
* SmallRoleBigImpact: They have several.
** If it wasn't for them opening the doors, Rimuru would still have been stuck in the cave.
** It was because they were sent on a scouting mission that Rimuru's developing village was able to start a good relationship with a neighboring human city, along with bringing Shizu to Rimuru.
** [[spoiler: It was because of them that Rimuru discovered he had a chance to revive his slaughtered citizens by becoming a Demon Lord. This also results in the Sorceror's Dynasty Sarion dispatching Elalude to Tempest to judge the situation since they, as elves, would be indirectly responsible for the birth of a new Demon Lord.]]
[[/folder]]

[[folder:Cabal]]
[[quoteright:200:https://static.tvtropes.org/pmwiki/pub/images/cabal.png]]
-> '''Voiced by''': Kengo Takanashi (Japanese), Creator/JustinCook (English)

An adventurer with the classification of "Fighter" under Fuze's command, he leads a small party of adventurers on journeys that more than not end up crossing paths with Rimuru.

* DeflectorShields: Can cast a barrier spell to protect himself and others. It comes in handy when it lessens the explosion of a Salamander from "fatal" to "badly wounding."
* HeroesPreferSwords: Carries a broadsword on his back.
* LeeroyJenkins: He seems to have a habit of causing the party trouble, such as when he aggravates a Giant Ants' nest.

[[folder:Gido]]
[[quoteright:180:https://static.tvtropes.org/pmwiki/pub/images/gido_7.png]]
-> '''Voiced by''': Ryuuichi Kijima (Japanese), Creator/BradHawkins (English)

An adventurer with the classification of "Thief" under Fuze's command, he serves as an exasperated voice of reason to his two companions.

* {{Invisibility}}: He knows a cloaking spell that can hide himself and his comrades.
* KnifeNut: Wields a knife in combat.
* OnlySaneMan: Often finds himself exasperated by Cabal and Ellen's antics.

[[folder:Ellen[=/=]Elyune]]
[[quoteright:150:https://static.tvtropes.org/pmwiki/pub/images/ellen_9.png]]
-> '''Voiced by''': Akane Kumada (Japanese), Creator/NatalieHoover (English)

An adventurer with the classification of "Mage" under Fuze's command, she serves as the moral center of sorts for her trio of comrades. She's actually an elf princess from Sarion, who became an adventurer to escape her stifling royal heritage.

* CallToAdventure: Why she became an adventurer. She wanted freedom away from being a noble.
* AnIcePerson: Can cast the spell Icicle Lance. Rimuru copies and improves it to make Icicle Shotgun.
* DatingWhatDaddyHates: What her father ''thinks'' she is doing with Rimuru. This ends after she hits some sense into him.
* HideYourOtherness: She uses magic to hide her elf ears.
* MagicStaff: A wooden staff tipped with a giant blue crystal ball, through which she casts her magic.
* ReallyRoyaltyReveal: She's actually Elyune, a noble from the Sorcerer's Dynasty Sarion and cousin to Empress Elumeshia Elure Sarion.

!Ingracia

[[folder:Kagurazaka Yuuki ('''Major Unmarked Spoilers''')]]
[[quoteright:190:https://static.tvtropes.org/pmwiki/pub/images/yuuki_anime.png]]
[[caption-width-right:190:Let's bring destruction to this world.]]
->'''Voiced by:''' Creator/NatsukiHanae (Japanese), Creator/CliffordChapin (English)

The head of the Adventurers' Guild and yet another Japanese person [[TrappedInAnotherWorld transferred into this world]]. He has some connection to Shizue and thus to Rimuru, and later becomes a major antagonist.

* AdaptationalPersonalityChange: Yuuki's major role is effectively the same in all versions of the story, but it's his personality and motivations that receive the biggest shifts, to the point that his original web novel version is ''much'' different from subsequent adaptations. Most specifically, in the web novel he's an OmnicidalManiac out to destroy the world [[ItAmusedMe out of boredom]], while in the light novel and beyond he wants to TakeOverTheWorld [[WellIntentionedExtremist because he truly believes he can establish a better world order]].
* AntiMagic: His Anti-Skill is an attribute that once activated will shut down ''all'' skills and magics on his targeted opponent once he makes physical contact. This includes any HealingFactor or even magical defenses, even if they come from Ultimate Skills. Combine this with his physical abilities and weapon skills, and Yuuki suddenly becomes a deadly MageKiller. It was how he prevented Kazaream from successfully possessing him after he was summoned. However, it won't work on weapons, and the effect will wear off on its own with time if he doesn't renew the effect.
* BigBad: In the Web Novel from the very start, having spent years scheming and making alliances (or just straight up mind-controlling pawns) to gather the necessary power to achieve his end goal to sadistically destroy or subjugate the world under himself.
* TheBigBadShuffle: In the Light Novel and subsequent adaptations, Yuuki while still being TheManBehindTheMan for many forces finds himself butting heads with other powers (Mariabell and Granbell Rosso, Rudra/Michael and Feldway) in order to achieve his dream of world domination, and ironically starts to slip into BigBadWannabe status as he finds himself being OutGambitted and mind-controlled himself by the latter pair.
* TheChessmaster: Yuuki was a genius from his kid years and excels in scheming and manipulations.
* DualWielding: He uses the more practical version of this by wielding a sword in one hand and a knife in the other, but he turns the conventions around in that he prefers using the ''sword'' to parry while going for a killing blow with the knife, [[PoisonedWeapons which carries a powerful poison that attacks the nervous system]].
* {{Greed}}: The embodiment of it thanks to his Ultimate Skill Greedy King Mammon. Specifically, it allows him to "steal" a person's mind (which [[MoreThanMindControl renders them loyal to him and his cause]]), their life (which can be used for EnergyAbsorption or even [[YourSoulIsMine soul stealing]]), or [[PowerParasite their Skills]] (though it only works if the victim is both weak in power and will, both of which he can achieve with the previous two effects). In fact, his "greed"/"desire" is so strong he resisted the brainwashing effects of the original owner of the Unique Skill [Greed] because he overpowered her own desires, and ultimately took the Unique Skill for himself to evolve into his Ultimate Skill.
* ItAmusedMe: From his earliest days he was bored to death with an ordinary life, and anything he does is entirely for his own amusement. In the web novel, he's the type of person who would have destroyed the world if it were within his power just because.
* OlderThanTheyLook: He's in his late twenties, but for some reason, his physical appearance has locked on his teenage form.
* {{Otaku}}: And a pretty hardcore at that. Rimuru was able to get on his good graces just by providing the latest issues of some popular {{manga}} series that he missed in this world.
* PopCulturedBadass: On account of having been a hardcore nerd in his past life, Yuuki is well-versed in numerous video-games and manga. He's also an extremely powerful Hero capable of wiping the floor with people who upset him.
* ThePowerOfCreation: His Unique Skill [Creator] allows him to manipulate a strange form of energy that can change form into whatever he needs for his current situation. It's what initially allowed him to create his [[AntiMagic Anti-Skill]], can [[PowerCopying analyze and copy Unique Skills used in his presence]], which he used to ultimately [[PowerParasite steal]] the Unique Skill [Greed] from Maribell Rosso after he killed her, and even forcibly evolved his own body permanently into a Saint. It's later revealed [Creator] is in fact the degraded version of Veldanava's Ultimate Skill [Creation King Ahura Mazda], which allows the user to make ''anything'' as long as they have sufficient knowledge and power to do so.
* {{Pride}}: Mentioned multiple times to be Yuuki's FatalFlaw. No matter how hopelessly outclassed he is or how awry his plans go, he always underestimates his opponents and acts cocky, assured of his inevitable victory or at least that [[ScrewThisImOutOfHere he can make a getaway to try again]] or talk/scheme his way out. In fairness, he manages that much fairly consistently, [[TooCleverByHalf but when he's wrong]]... This also extends to his subordinate, Kagali, who scoffs at the idea of Tempest repelling the Empire's army despite being a nation of superhumans led by an awakened Demon Lord.
* SuperPowerLottery:
** Information King AkashicRecords allows him to use almost every ability in the series.
** Primitive Magic reflects the user's will and produces the phenomena they want.
* TakeOverTheWorld: His main goal in all adaptations post the web novel, which reflects nicely in his [[{{Greed}} Ultimate Skill]].
* TeenGenius: Outwardly. He's really [[OlderThanTheyLook in his late twenties]].
* TerroristsWithoutACause: In the web novel, there's basically no reason for Yuuki adopting his outlook except some ''very'' vague FreudianExcuse and [[ItAmusedMe sheer boredom]].
* TooCleverByHalf: His biggest weakness. Yuuki is TheChessmaster and master of the XanatosGambit capable of spinning even bad events to his favor and bouncing back from horrible setbacks, but when he overplays his hand due to overconfidence, he and his friends pay ''big time'' for it.
** His final scheme with Granbell is this in a nutshell. While Yuuki is rightfully suspicous of Granbell's motives and wary of a double-cross, the prospect of getting his hands on the [[SealedBadassInACan ark containing Chronoa]], the True Hero that defeated Veldora, and possibly bringing her under his control is just too good to pass up for his goal to TakeOverTheWorld. In the end, he played right into Granbell's hands by releasing Chronoa from the ark (something not even Granbell could have done in a timely manner), which allowed her to go on a rampage and confirmed Yuuki's villainy to the public when before he had managed to [[DeceasedFallGuyGambit pin it all on Granbell's granddaughter Maribel and her apparent mind control]]. In fairness, Granbell [[ManipulativeBastard pulled the wool on everyone's eyes]] for his final scheme.
** His attempted coup against Rudra was doomed from the start since one of the closest of his inner circle, Damrada, was in fact an undercover Imperial Knight (No. 2 in the ranks, actually). Yuuki recgonizes Damrada's potential treachery, but is able to rationalize it by noting that Damrada has always been loyal to him and that Damrada explicitly states he does what he believes is necessary for the Empire (a coup at this stage of the war would actually result in much less bloodshed) and that he truly considers Yuuki a friend and vice-versa. Damrada ''does'' in fact fit all these things, [[MoreThanMindControl but is able to rationalize his betrayal all thanks to his Domination]]. The end result of giving Damrada the benefit of the doubt results in the coup failing, Kagali, Tear, and Footman being Dominated by Kondo, and Yuuki himself taking on Rudra and being Dominated directly.
** During the angel's assault on El Dorado to capture Leon, he reveals he's managed to break his Domination and was just doing PretendToBeBrainwashed during the five-month TimeSkip between the Empire War and now, waiting for a crucial moment to act so he and the Moderate Clown Troupe could make their escape. He rescues Laplace from certain death and frees Kagali (and by extension Tear and Footman) from direct Domination...but unfortunately for him, he realizes he played his card too early as Feldway reveals ''his'' backup plan and has a possessed Footman (hosting the spirit of Kagali's [[AbusiveParents father]]) stab him right through the chest InTheBack, which he only survives thanks to his Saint physiology.
* VillainousUnderdog: Rimuru actually surpasses Yuuki in power several times over the course of the story, forcing Yuuki to rely on planning, deception, and a bit of luck in order to stay in the game and gather the power to match him.
* VillainWithGoodPublicity: Early on, he went to great lengths to concoct a kind and reasonable persona doing a lot of good deeds to increase his influence. In actual fact, however, Yuuki's a twisted psychopath reveling in the destruction he brings in the web novel. Even in subsequent adaptations where he's more genuine, it doesn't change his manipulations.
* WalkingSpoiler: It's practically impossible to have any serious discussion about the man without giving away his status as the original BigBad of the plot.
* WellIntentionedExtremist: In the light novel and subsequent adaptations, Yuuki wants to TakeOverTheWorld because he believes he can create a more fair and just society by purging the corrupt. His foundation of the AdventureGuild was built in part to try and achieve that, and his various manipulations are his idea of DirtyBusiness to make it happen.

[[folder:Kagali ('''Major Unmarked Spoilers''')]]
!!Kagali/Kazaream
!!!Curse Lord
[[quoteright:155:https://static.tvtropes.org/pmwiki/pub/images/kagali_anime.png]]
->'''Voiced by:''' Creator/YuiIshikawa (Japanese)

Yuuki's elf secretary. There's much more to her than meets the eye.

* ArtificialHuman: "Kagali" is in fact the homunculus body of a female elf, occupied by Kazaream's spirit.
* BenevolentBoss: In contrast to [[BadBoss Clayman]], Kazaream had a much lighter and joking relationship with his closest subordinates in the Monster Clown Troupe, and as Kagali she still maintains it. She even got pissed off at Rimuru when she learned of Clayman's death at his hands.
* TheChessmaster: Kazaream's calling as a Demon Lord, and something his subordinate Clayman sought to emulate with his own rise to power. Her Unique Skill Planner is even built around it.
* {{Curse}}: These were Kazaream's specialities, which were used to bind powerful beings to his will such as Adalman.
* GenderBender: Not by choice, but Kazaream was originally male before his old body was destroyed and he spent over a century as a spirit desperate to get a body back (to the point he was willing to summon and steal a compatible Otherworlder's body such as Yuuki's) before he settled on a homunculus body that happened to be female. While grateful to actually have flesh and blood again, she does seem rather embarrassed enough by the circumstances that led to this point, while Laplace finds the contrast between forms hilarious. [[spoiler:Turns out to actually be zigzagged, as Kazaream was originally an elf princess turned deformed male by her sadistic father, with her current life as Kagali having a replicated body as close to her original true form as she could recall.]]
* InTheHood: Flashbacks show Kazaream wearing a full-bodied cloak with a hood in addition to his mask, which were meant to hide his twisted physical form.
* InvadingRefugees: Kazaream was a survivor of the elf kingdom in what is now known as Soma that foolishly killed Milim's pet dragon to try and control her only to be wiped out and used to fuel her Demon Lord ascension, and then was further ravaged by the revived Chaos Dragon. When the elven survivors scattered to the four winds, Kazaream led the dark elves to what would become the Puppet Nation of Jistav and built the fortified city of Amrita, intent on preserving what elven technology that he could. Unfortunately, his dream never came to pass.
* MalevolentMaskedMan: Kazaream always wore a mask because he was ashamed of his hideous features [[spoiler:especially since they were a cruel reminder of the feminine beauty he once had]]. The Moderate Clown Troupe wore masks in part to maintain solidarity with their master.
* TheReveal: She's actually Kazaream, a former True Demon Lord who is the ''true'' master of the Moderate Clown Troupe, and was seemingly slain by Leon Cromwell 200 years before the present-day. ''[[GenderBender He]]'' spent over a century as a bodiless spirit before summoning and attempting to possess Yuuki Kagurazaka and failing, ultimately deciding to serve the Otherworlder and taking over the homunculus body of a female elf to start an identity as "Kagali".
* ThirdLawOfGenderBending: As Kagali, the formerly male Demon Lord ended up adopting many feminine mannerisms, habits, quirks and speaking patterns, which did have the advantage of selling the deception but also left Kagali rather mortified after the fact especially once Laplace brought it up. [[spoiler:Later turns out this was subverted, as technically speaking she was ''always'' female, it's just that her "male" body resulted from her sadistic father forcibly turning her into a deformed male, so both before and after her rebirth she always had a female mindset, just hidden behind a masculine facade as a male.]]
* ATragedyOfImpulsiveness: [[spoiler:What ultimately led to his death by Leon's hands. When Leon declared himself a Demon Lord, Kazaream originally went to him to try and gain him as an ally. However, the sight of [[{{Bishonen}} Leon's]] [[DudeLooksLikeALady beauty]] reminded Kazaream of the beauty he himself once possessed as elven royalty and he attacked Leon in a fit of [[GreenEyedMonster jealous rage]].]]
* WalkingSpoiler: It's ''really'' hard to talk about Kagali without going into her history and relationships with several important characters, most notably that of Yuuki and Clayman.

!!Moderate Clown Troupe
[[folder:In General]]
The three clowns who act as enforcers for Clayman following their old master Kazaream dying.

* BewareTheSillyOnes: They act like a bunch of jokesters, [[spoiler:but each one is ''much'' stronger than Clayman himself, who did earn his Demon Lord seat if only as one of the weakest. Footman fights Geld post Rimuru's Harvest Festival evenly with little sign of fatigue, Tear runs circles around Phobio and would have killed him were it not for his HealingFactor, and Laplace straight-up kills Roy Valentine, a decoy Demon Lord as strong as Kazaream and stronger than Clayman, brutally and swiftly once he stops holding back.]]
* BumblingHenchmenDuo: Tear and Footman tend to fulfill this role, as they're almost always sent together on missions and provide comical exposition compared to Laplace often being trusted with being on his own with the "serious" missions. This has less to do with their fighting ability (as both are extremely dangerous) than the fact that individually they're a bit less smart and competent than Laplace, which is why they need a partner to watch out for them.
* EvenEvilHasLovedOnes: All of them are remorseless criminal monsters, but all of them greatly care for and cherish one another, and will consider slights against one of them or their former master to be slights against all of them.
* KungFuWizard: When it comes to fighting, all three have been seen mostly using a BareFistedMonk style involving punches, kicks, acrobatic dodging, and all other forms of directly throwing their weight around without any weapons, but they also compliment their physical attacks with decently strong spells.
* MonsterClown: All of them wears masks and outfits with a strong jester aesthetic, along with exhibiting goofy and joking personas, and all of them are unrepentant bastards who instigate plenty of death and destruction for their goals.
* ResurrectiveImmortality: Every member of the troupe is a person that was revived through a special magic to become beings called "deathmen", where no matter how badly damaged their bodies get, or even if they're destroyed, their souls will not dissipate like normally, allowing them to either [[GrandTheftMe possess another person's body]] or slip into an artifical body without worry of truly dying. That said, when up against someone capable of SoulEating or a SoulCuttingBlade, they are just as vulnerable as most people to being rendered DeaderThanDead.
* UndyingLoyalty: No matter what situation might arise that would put them in a position to bail on each other, they will never do so, and are willing to be tortured or killed, even rendered DeaderThanDead, rather than even betray one of their number. Their loyalty is especially strong to their [[spoiler:initially]] dead master, continuing to work towards fulfilling Kazaream's goals along with trying to revive him.

[[folder:Laplace]]
!!!Wonder Pierrot
[[quoteright:250:https://static.tvtropes.org/pmwiki/pub/images/laplace_anime.png]]
-> '''Voiced by:''' Creator/KazuyaNakai (Japanese), Creator/ChuckHuber (English)

A Majin who is the vice-president of the Moderate Clown Troupe and affiliated with Clayman.
----
* AffablyEvil: He's up to no good, but he has a strong sense of jokingness, camaraderie, and loyalty that's completely geniune.
* BewareTheSillyOnes: He's a complete jokester who prefers being laidback, but he's the strongest member of the Troupe after their leader [[spoiler:as in, only beneath Kazaream (and even that might not be true given what he does to Roy) and higher than ''Clayman'']]. He proves it by fighting and killing [[spoiler:Roy Valentine, Luminous' decoy Demon Lord who would be in a similar power tier to Kazaream himself.]] He's willingly to claim to his boss and fellows that [[WorfHadTheFlu he needed the best possible conditions]] to pull it off, [[spoiler:but the narration notes he's deliberately downplaying his own full skill-set.]]
* CombatClairvoyance: [[spoiler:His second and secret Unique Skill, Future Vision, allows him to see several seconds into the future, and thus let him plan his actions accordingly by testing whether or not his plan of attack or even his Deceiver skill will work on a foe. Combined with his refined combat skills, and it wouldn't be an exaggeration to say he really is more dangerous than his Demon Lord superior.]]
* DelayedReaction: It takes him a moment to register Clayman's assertion that Myulan was killed by Rimuru [[spoiler:(she actually wasn't)]], leading him to cutting off his original thought and dropping the ball he was toying with in shock.
* EveryoneHasStandards: He finds Clayman's intention to slaughter Yuurazania's evacuated non-combatant citizens to be going a bit extreme, not simply for moral reasons but because he's moving faster and more recklessly than he usually would.
* KnowWhenToFoldEm: He opts to run away with Gelmud when they are found and attacked by Treyni instead of fighting her because they would've been captured should Treyni call for backup.
* LaughingMad: [[spoiler:After he kills Roy, he makes his escape slaughtering the Church knights drawn to the commotion and laughing all the while, which is his way of getting through his grief at Clayman's death.]]
* MalevolentMaskedMan: He wears a [[MonsterClown smiling clown mask]] and, while AffablyEvil, is still willing to do very evil things to achieve his goals and that of his masters.
* MasterOfIllusion: His Unique Skill Deceiver combines equal sub-skills such as Deception, Infiltration, and Concealment, which he can use to deceive his opponents' senses. Not only does this work wonders for spying and recon, he can use it in the middle of combat to do things like FakingTheDead, [[FightingAShadow create an illusion his foes attack]] while the real him sets up an attack or runs away, or even change his opponents' perception of what weapon he's currently using (like thinking he's using a knife when it's actually a lance or bomb, or even hiding a knife when it looks like he's bare-handed).
* MySignificanceSenseIsTingling: Laplace can detect magic being used in his presence, which not only allows him to sense offensive attacks, but can also be used to detect teleporation spells.
* NeckLift: Pulls one of these on [[TheBrute Vega]] when the man gets too big for his britches about how [[spoiler:he doesn't need to follow Yuuki anymore since Rudra has proven himself stronger.]] Particularly impressive since Vega is easily twice Laplace's size and far more muscled.
* NotSoHarmlessVillain: He jokes around and prefers running over fighting unnecessarily enough that it's easy both for people in-universe and out to underestimate him before he finally goes on the war path. He actually could have beaten Treyni during her confrontation with him and Gelmud, but retreated because she would have easily gotten more dryads to come in for backup. [[spoiler:He ran from Roy Valentine during their first fight and nearly did so for their second fight, new moon weakening Roy be damned, since Laplace had just finished running from a no-win scenario with Hinata, up until Roy revealed and made fun of Clayman's death. At which point Laplace proceeds to beat him with his fists, snatch out his core/heart, and [[AndShowItToYou crush it to pieces right in front of Roy's shocked and fearful eyes]].]]
* ReallyRoyaltyReveal: Volume 18 of the light novel reveals he's actually [[spoiler:the undead and amnesiac [[FounderOfTheKingdom Sarion Griswald]], former Emperor of the Sorcerous Dynasty of Sarion, brother of Elalude Grimwald, uncle of Ellen, and father of Elumeshia Elure Sarion. Kazaream raised him from his fatal injuries but his memories became clouded and lost as a result of the resurrection and conversion into a walking dead.]]
* ScrewThisImOutOfHere: His preferred method of dealing with conflict is to hightail it, but justified by the fact that most of the fights we see him run from are either fights he legitimately can't win, would cost him more in the long-run even if he was victorious, or simply [[WeWinBecauseYouDidnt where he didn't have to win to achieve his goal anyways]]. [[spoiler:When Roy makes the mistake of mocking Clayman's death during Round 2, Laplace stops running and shows why he's a NotSoHarmlessVillain.]]
* UnexplainedRecovery: {{Lampshaded}} by his own boss when Laplace recounts his encounter with Roy and how he was apparently blown apart by the vampire's Blood Ray, but is now standing there right as rain. It's because Roy killed [[FightingAShadow an illusion rather than the real Laplace]], allowing him to flee.
[[/folder]]

[[folder:Tear]]
!!!Teardrop Pierrot
[[quoteright:250:https://static.tvtropes.org/pmwiki/pub/images/tear_anime.png]]
-> '''Voiced by:''' Creator/KaedeHondo (Japanese), Creator/MonicaRial (English)

A Majin who is a member of the Moderate Clown Troupe.
----
* BewareTheSillyOnes: Despite her childishness, she's no slouch in a fight. She held her own against the Beastketeer Phobio and would have killed him were it not for his [[HealingFactor Ultraspeed Regeneration]].
* CuteAndPsycho: She acts like an excitable child most of the time, complete with calling Phobio a "dumb black cat" during their fight, but that doesn't detract from the fact she's not adverse to murder and manipulation if that's what she has to do.
* DanceBattler: She takes the acrobatic movment of the Troupe the furthest, constantly moving around and dodging attacks in a dance-like way, since her FragileSpeedster build means she needs to be agile enough to avoid getting hit.
* FragileSpeedster: She moves very fast, but she's not much for taking a hit. Still, she ran circles around Phobio, who prided himself on his speed, during their fight, and is skilled enough to leverage her weaker strength to hurt Phobio despite him being tougher than her.
* IronicName: Despite being called "Tear", she's actually quite energetic and go-lucky.
* PinkIsFeminine: She wears pink clothing alongside her magenta hair.
* YouGottaHaveBlueHair: She has noticeable magenta hair.
[[/folder]]

[[folder:Footman]]
!!!Angry Pierrot
[[quoteright:250:https://static.tvtropes.org/pmwiki/pub/images/footman_anime.png]]
-> '''Voiced by:''' Creator/ShinjiKawada (Japanese), Creator/SonnyStrait (English)

A Majin who is a member of the Moderate Clown Troupe.
----
* {{Acrofatic}}: He can move very fast for someone of his bulk, with his style including losts of spinning and jumping around.
* BarehandedBladeBlock: He pulls this off to catch Geld's cleaver during the orc's sneak attack and holds it in place even as Geld pushes on it, [[BewareTheSillyOnes which is the first real sign he's not just a bumbling fool]].
* BewareTheSillyOnes: He might not look so threatening at first, but he's very powerful. He could fight evenly with Geld and destroy his shield and armor while heavily injuring him, despite Geld at this point being even stronger than when he [[CurbStompBattle thrashed]] Shogou thanks to Rimuru's Harvest Festival.
* DumbMuscle: Self-admitted at that, preferring to use his brawn rather than brains and would rather leave the thinking to the others while he goes along with his orders. That said, he's still smarter than [[TheBrute Vega]] in that he can actually be trusted to ''follow'' the orders.
* HairTriggerTemper: True to his alias, while he can put up a joking manner he's rather quick to anger and lashing out even against his friends.
* RollingAttack: His {{Acrofatic}} skills are good enough that, with just a few seconds warmup, he can turn himself into a rapidly spinning ball to smash into, and potentially through, enemies at incredible speeds.
* StoutStrength: He's got the strength to match his bulk, being capable of going toe-to-toe with fellow StoutStrength Geld.
[[/folder]]

!The Kingdom of Falmuth

[[folder:King Edmalis]]
[[quoteright:350:https://static.tvtropes.org/pmwiki/pub/images/edmalis.jpg]]
[[caption-width-right:350: [[TooDumbToLive You're showing such rudeness, Ruler of monsters. Kneel! I am King Edmalis; King of the mighty Kingdom of Falmuth. I am not someone you should...]] GHYAAA!!!]]
-> '''Voiced by:''' Hiroshi Yanaka (Japanese)

The first human king to foolishly and one-sidedly wage war on Tempest.
----
* AbdicateTheThrone: [[spoiler:He is forced to do this by Rimuru and Diablo's decree in order to eventually install Youm as the new king. Edmalis, wracked with guilt over the destruction and suffering he's caused his nation with his greed and pride, doesn't fight this demand.]]
* AdaptationalIntelligence: Played with. While Edmalis in the anime still makes every short-sighted, greedy, stupid mistake of his light novel and manga counterparts, he is at least not so suicidal as to openly demand a being that has single-handedly wiped out his entire army bow down to him. Still wasn't a smart move to try and demand war compensation for Falmuth's losses during the offer for negotiations, especially given he's both the aggressor ''and'' loser in the equation.
* AdaptationalKarma: While he [[AnArmAndALeg definitely]] wasn't [[BreakTheHaughty a case]] of KarmaHoudini in the light novel and manga for massacring the citizens of Tempest, his punishment of being chained up in a cell to ruminate on his hubris was more CruelMercy compared to [[BodyHorror the fate]] of Rayhiem and Razen. When the time came for his captive appearance in the anime, while the whole "cell visit" incident was glossed over with Rimuru never personally checking on him, it's shown there in a quick scene that he was given the same horrifying transformation as his two surviving subordinates.
* AnArmAndALeg: In the light novel and manga, Rimuru slices off his arm when he foolishly points at the very same guy who wiped out 20,000 of his troops single-handed and says "On your knees, monster! You are in the presence of King Edmalis of Falmuth!" Rimuru goes a bit further in the light novel by also slicing off one of his legs when the king annoys him even more with his arrogance. In the anime, Rimuru lops off his arm in response to Edmalis talking down to him and running his mouth.
* AwakeningTheSleepingGiant: Tempest was a prospering trade hub that happily shares its prosperity with its neighbors. King Edmalis's cowardly sneak attack using a flimsy PretextForWar makes the entire country and its king Rimuru ''permanently'' hostile to him, and alienates several other great powers, like the dwarf nation of Dwargon and the kingdom of Blumund, that have mutual defense pacts in place.
* BeardOfEvil: Full beard, greedy, cowardly, and wicked sot who attacked Tempest expecting an easy victory, riches, and land to exploit.
* BlatantLies: When Rimuru demands to hear the King's side of the story, King Falmuth tries to say the entire army are his personal body-guards, he was seeking peaceful relations, and the attack on Tempest was a "misunderstanding," with the criminals in his employ having duped him as well. Rimuru listens to the very end before stating that he has no shred of credibility and taking him as a P.O.W. so that his country pays ransom for his aggression.
* BreakTheHaughty: Makes tent at one of the four magic barrier crystals debuffing the "monsters" in Tempest expecting an easy victory and gloating how he's going to rake in the spoils. When his invading army is wiped out and all the barrier crystal stations are totally annihilated, he begins panicking and trying to sneak out the back of the tent, until everything goes quiet. He briefly recovers when Rimuru shows up, and he thinks he can browbeat the leader of Tempest due to the "NiceGuy" reputation Rimuru's built up, only to break down completely at losing an arm and Rimuru stating "if you think I'm a nice guy, [[GoodIsNotSoft you are sorely mistaken]]."
* DidntThinkThisThrough: His attack on Tempest not only made Rimuru break his ThouShallNotKill rule involving humans, but that it made him very angry to the point that in order to resurrect his fallen citizens, he has to kill 10,000 humans to do it. Rimuru kills '''20,000''' men under his employ, including Folgen, which is beyond the necessary requirements, including those who fell into DespairEventHorizon and were begging for their lives. And [[TranquilFury he doesn't say anything or raise his voice doing it]]. He also tried to talk him down despite what Rimuru just did seconds before, and he loses his left arm for his trouble. Really, had he decided to make actual peaceful solutions with Rimuru from the start instead of pissing him off, then the latter wouldn't even have to kill 20,000 of his soldiers to become a Demon Lord, and take him as a prisoner of war. He really had no idea how much he screwed the pooch by making Rimuru angry.
* DirtyCoward: Tries to flee the instant he realizes he's on the losing end of the fight with Tempest, leaving all his allies behind. He doesn't get anywhere.
* FatalFlaw: {{Greed}} and {{Pride}}. Edmalis is proud not simply as befitting his status of nobility, but also because he's the king of one of the strongest Western nations in both military and economic might. As Gazel notes to Rimuru, however, he's far too greedy for his own good and with Tempest as a rising powerhouse threatening Falmuth's monopoly on the market, he's easily swayed by besmirched pride and his desire to add to his wealth to launch the ill-fated war against Tempest. These actions ultimately lead to the dissolvement of Falmuth as an independent political entity and securing Tempest's place as the new economic powerhouse of the west.
* HopeSpot: Repeatedly. In the dungeons under Tempest, as he's surrounded by the BodyHorror that was his advisers who recommended the ill-advised attack on Tempest, he repeatedly shouts that he's the king of Falmuth and begs for aid. Two of Tempest's citizens visit him while his remaining arm is chained to the wall.
** He is first met by Shion. She greets him politely, tells him he's not going to be killed, tells him she forgives him for her death at the hands of his troops, and tells him that Rimuru likes humans, of which he is one. Then she reveals that she will never forgive that his attack forced Rimuru to kill humans by the legion, and beats the ever loving shit out of him, stating that even if she had permission to kill him, shredding him to pieces 10,000 times would not be enough to end her rampage.
** He is later visited by Rimuru, not wearing his mask. King Edmalis mistakes the androgynous Rimuru for a servant girl and tries to bribe his way out. Rimuru asks him if he's forgotten his voice and slaps the mask on, then advises the king that freedom is not forthcoming, and that the burden for the attack on Tempest will be something he'll have to live with the rest of his life, leaving King Edmalis to wallow in his despair and terror. And then Shion [[BodyHorror works her ability on him]].
* ImplausibleDeniability: Tries to claim he knew nothing about the aggression of his troops and cowardly sneak attack of his Black Ops team. Rimuru didn't buy a word of it.
* MyGodWhatHaveIDone: After the disasterous Falmuth campaign, being imprisoned in Tempest and suffering for his actions and pride, and witnessing Tempest's prosperity and peace first-hand, Edmalis is so wracked with guilt that he [[spoiler:willingly goes with Diablo's plans to turn Falmuth into a vassal state for Tempest while abdicating his throne, admitting truthfully to his advisors he was a fool and that all he can do now is try and prevent Falmuth from suffering further.]]
* PretextForWar: Which was a total farce, and he knows it. When Tempest's prosperity as a growing trade hub began threatening his monopoly, he, his corrupt nobles, and Bishop Rayhiem scheme to make it look like Tempest's citizens are attacking humans unprovoked, so he can ally with the Imperial Holy Church and not only eliminate the competition, but rake in all sorts of spoils. He comes to regret it when he finds himself in Tempest's dungeon, his advisors all wind up dead ''[[BodyHorror or worse]]'', and his nation winds up being ruled by Youm and Myulan as a vassal state to Tempest.
* StunnedSilence: After Rimuru chops his arm off in annoyance, he spends several beat panels wordlessly staring at the stump before he collapses to the ground in agony.
* TooDumbToLive: Due to his WrongAssumption, he commands a very pissed off Rimuru to kneel before him, even adding to not mess with him. The very same Rimuru who just slain over 20,000 of his soldiers in front of him. He ends up losing his arm for his effort. While this is toned down in the anime, Edmalis still has the stones to be disrespectful to Rimuru when he refuses to indulge in the king's lies, as well as attempting to negotiate anything less than complete and unconditional surrender while demanding war compensation (never mind that he was both the aggressor ''and'' the losing party in this whole affair). [[LampshadeHanging Rimuru even notes to himself]] that Edmalis must be some special kind of idiot, before blasting his arm off.
* VillainsWantMercy: Begged for his life the moment a pissed off Rimuru gives him the chance to speak.
* WrongAssumption: He presumed Rimuru, who had just slain over 20,000 of his soldiers, right in his face, would be a "soft, easy mark, lousy at diplomacy" based on out-dated intelligence reports. So he commands Rimuru to kneel, stating that he's someone Rimuru should not mess with. He loses an arm to Rimuru's wrath, just to show him how wrong he is.
[[/folder]]

[[folder:Bishop Rayhiem]]
[[quoteright:350:https://static.tvtropes.org/pmwiki/pub/images/reyien_3.jpg]]
[[caption-width-right:350:I swear upon the Western Church, he's the real deal! Please spare my life!!!]]
->'''Voiced by:''' Hayato Fujii (Japanese), Ben Phillips (English)

The cleric of the human supremacist church who spurred Edmalis's war campaign.
----
* AssholeVictim: Given just how much of a complete scumbag he was, not a single hint of concern or care is given to him being [[BodyHorror transformed into a horrifying mass of flesh]] by Shion. The story doesn't even bother lingering on it, only leaving it as a passing footnote. [[spoiler:Even his rather pathetic and even pitiable death at the hands of the Seven Luminaries once [[YouHaveOutlivedYourUsefulness they finish using him to set up Hinata v. Rimuru Round 2]] after a round of torture and interrogation isn't treated with much real concern by anyone aside from ironically Diablo (who was more concerned by how a useful pawn had been killed and more importantly was being used to try and scrapegoat ''him'').]]
* AintTooProudToBeg: Shamelessly begged for his life to a pissed off Rimuru. He lost what little respect Rimuru had for him as a result.
* BaldOfEvil: Not a single hair on his head, and a coward who spurred the kingdom of Falmuth into a genocidal attack on Tempest.
* BarrierWarrior: He's the one who initiates the activation of the Holy Field meant to weaken monsters on Tempest and brought the Church knights who would maintain the barrier.
* BodyHorror: While he survives a bit longer than Razen, he's eventually forced through the same experience of being turned into a horrifying mass of still-living flesh, bones, and organs thanks to Shion. Diablo only restores him [[spoiler:to use him as part of the plan to peacefully transfer power in Falmuth to Youm.]]
* DirtyCoward: The moment Tempest retaliated, he and King Edmalis cowered in the king's tent, planning to flee, abandoning their troops and allies.
* ItsAllAboutMe: The only life he cares about is his own, even willing to offer up King Edmalis to spare himself.
* SmallRoleBigImpact:
** He has no real part in the overall conflict between Falmuth and Tempest beyond arranging for Hinata and the rest of the Imperial Holy Church to get involved, and he also has the smallest number of story scenes, but the very fact that he used the words of the Church to convince Edmalis into initiating the war using flimsy pretexts is what set everything in motion to enrage Rimuru into decimating the Falmuth kingdom and evolving into a True Demon Lord.
** [[spoiler:The Seven Luminaries using him as a disposable pawn to both set up Hinata's death and destabilize Diablo's efforts to successfully take control of Falmuth via manipulating Edmalis and installing Youm also ends up backfiring since Hinata is suspicous enough to not rush in blindly for Round 2 with Rimuru, while Diablo is enraged enough at the death of his pawn and attempt to pin it on himself (which puts his own position with Rimuru in jeopardy) to scheme even harder to get to the bottom of it all. This ends in the Seven Luminaries' revealing their manipulations and their deaths by the hands of Diablo, Luminous, and Cardinal Nikolaus, not to mention Diablo's plans for turning Falmuth into a vassal state reaching a conclusion much faster, Luminous meeting with Rimuru to discuss negotiations with the Holy Empire, and Hinata and Rimuru burying the hatchet.]]
* VillainsWantMercy: Facing off against a pissed Rimuru, and he doesn't hesitate to drop to his knees, bowing his head to the ground, begging for his life. [[spoiler:When Diablo restores him to normal from his BodyHorror state, he's all but seconds away from licking Diablo's boots while proclaiming his loyalty.]]
* YouHaveOutlivedYourUsefulness: [[spoiler:The Seven Luminaries kill him after intercepting him before he can reach Hinata with Rimuru's message and performing ManipulativeEditing on the message so they can send her and Rimuru on another collision course, and then torturing him before death so they can scrapegoat Diablo and unite the reeling Falmuth kingdom against the pro-Tempest side (Edmalis and Youm). Unfortunately for the Seven Luminaries, Diablo [[BerserkButton disagreed with their viewpoints.]]]]
[[/folder]]

[[folder:High Wizard Razen]]
[[quoteright:350:https://static.tvtropes.org/pmwiki/pub/images/razen.jpg]]
[[caption-width-right:350:Yes, this is a very valuable resource for the Falmuth kingdom, despite [[ItIsDehumanizing how it looks.]]]]
->'''Old Body Voiced by:''' Eiji Hanawa (Japanese)\\
'''New Body Voiced by:''' Creator/ChiakiKobayashi (Japanese), Creator/MattShipman (English)

The court wizard and strongest magic-user within the Falmuth Kingdom.
----
* AccidentalMisnaming: He gets it the worst of Shion's name butchering, as she wrote it down as ''"Ramen"'', which got Rimuru to nostagically muse that he hasn't enjoyed that dish in a long time.
* TheArchMage: He has mastered many powerful and varied spells and types of magic, including summons. It's noted by several people in the know that Razen is effectively at the pinnacle of what a human mage can achieve, to the point even the Beastketeers admit they always wanted to test their strength against his magic. The fact that Diablo can treat him like a complete ''joke'' not even worth mentioning as "strong" thus shows just how high Diablo's standards are.
* ArrogantKungFuGuy: In the anime, after [[spoiler:taking over Shogou's mind]], he claims to be the most powerful majin in the entire history of Falmuth. He even goes as far as claiming that he ''could likely defeat a Demon Lord''.
* AdaptationalNiceGuy: {{Downplayed}} in that [[spoiler:he still murders Shogou for his body]], but in the anime he at least has the decency to ''pretend'' he's helping him and makes the act too swift and painless for the man to fully comprehend before it's over. In the light novel and manga, he makes sure Shogou understands ''exactly'' what's happening and taunts him for it before finishing up.
* AssholeVictim: No tears were shed when the Demon later named "Diablo" beats the tar out of him as he foolishly resists being taken into custody. Even less of a damn was given [[ColdBloodedTorture for what happened to him]] [[BodyHorror at Shion's hands]].
* AtLeastIAdmitIt: When he's lecturing Shogou Taguchi at the guy's last moments, he admits that the kingdom of Falmuth, and the summoners who summoned and enslaved him, as well as Razen himself, are not good people, but Shogou is no good person either.
-->"Needless to say, we are not good people, but neither are you."
* BodyHorror: When he shows up again following his capture by Rimuru, Shion has subjected him to ColdBloodedTorture using her "Chef" skill, turning him into a writhing mass of flesh, bones and organs that is almost impossible to tell ever used to be a human being. [[AndIMustScream He's also still alive in this form, unable to utter a sound while his body twitches in agony.]] Diablo only restores him [[spoiler:to use him as part of the plan to peacefully transfer power in Falmuth to Youm.]]
* BoomHeadshot: How Rimuru tries to dispatch him. Razen survives [[spoiler:thanks to Shogou's body's HealingFactor]], which prompts Rimuru to summon Diablo to hunt him down.
* BreakTheHaughty: He was introduced as a powerful wizard who saves Shogou, only to [[spoiler:[[CavalryBetrayal betray him]] and destroy his soul so that [[GrandTheftMe he can possess his body]]]] while boasting he can take even a Demon Lord. He also has a DeadManSwitch in the event he gets killed to [[TakingYouWithMe kill any enemies near him]]. However, his very first encounter with Rimuru nearly went fatal while the latter was in the process of ''becoming'' a Demon Lord himself if Shogo's [Survivor] skill didn't save him, though this point Rimuru ''is'' technically already Demon Lord material and taking steps to become a ''True'' Demon Lord. But where he gets broken is his encounter with Diablo, and realizes who he is up against when the latter effortlessly blows away his nuclear magic spell, defeats his Spirit Golem, and makes Razen shit his pants when he fully realized who Rimuru summoned and passes out on the spot. For a man who claims he could defeat a Demon Lord, Diablo, who at this point is at best an EliteMook to Rimuru and not even ''near'' a True Demon Lord's level, shatters his pride just by existing. [[spoiler:By the time Diablo restores him from Shion's BodyHorror, the prideful man he was is all but gone as humbly swears himself to Diablo's service to save Falmuth from further destruction.]]
* CavalryBetrayal: He rescues Shogou from certain death at the end of Geld's blade, and the moment they're in relative safety, turns on him.
* CurbStompBattle: He suffers from this when he faces off against Diablo. The primal demon trivializes all his attacks so casually he didn't even need to land a single hit on Razen to defeat him. Razen simply faints from the overwhelming fear of realizing who Diablo is and how out-matched he actually is.
* DeadMansSwitch: Hakurou reveals that Razen's prepped a "nuclear strike" spell with his own death as the trigger, meant to be a deterrent against people killing him without getting killed themselves. That said, the magic in place only applies to when he ''dies''. So something like [[BodyHorror his fate at the hands of Shion]] makes it where he's incapacitated in a way that, [[FateWorseThanDeath technically]], doesn't kill him.
* FakingTheDead: He pretends that Rimuru's attack kills him, healing it and waiting for an opportunity to try and escape. This prompts Rimuru to summon demons to hunt him down.
* FamedInStory: He's known in the western nations as Falmuth's centuries-old champion, TheArchmage that's near the pinnacle of what a human can achieve. Gazel, Elalude, and even the Three Beastketeers acknowledge his power. The fact that Diablo [[OvershadowedByAwesome can treat him like a joke who had "some" skill in magic for a human]] is yet another clue to Rimuru that Diablo is ''far'' more than he appears.
* FatalFlaw: Arrogance. He presumes he's always better than everyone else in the room. When he tries to fight off a "Demon of the Primal Colors," he realizes this is wrong a bit too late, and suffers for it.
* GrandTheftMe: [[spoiler:He steals Shogou's body, after killing Shogou's soul, on-screen for a power-up of his own.]] This is not the first time he has done this over the centuries of his life and is the reason why he's an OldRetainer.
* GoMadFromTheRevelation: He dodged this, barely, when he was scrying the underworld for secrets. He learned of the seven colored primordial demons and escaped with his mind intact. Unfortuanately for him, he never intended to actually ''fight'' one of them, and his knowledge utlimately ended with him passing out in fear when he realized that Diablo was one of them.
* KickTheSonOfABitch: Using a magic spell to destroy [[spoiler:Shogou's soul to then steal his body gave the latter a KarmicDeath.]]
* KnowWhenToFoldEm: He's usually well-versed as to when he's outmatched in combat, and when this happens, he always prioritizes his escape, but never, ever surrenders. The last part does eventually catch up to him when he tries to sneak away, fails, and then attempts to resist being taken into custody.
* KungFuWizard: Quite literally after [[spoiler:he steals Shogou's body]], combining his knowledge and mastery of magic with [[spoiler:Shogou's physical strength, durability, and HealingFactor.]]
* OhCrap: Once he comes to blows with Diablo, he shits his pants in terror over who he was dealing with, and passes out on the spot.
* OldRetainer: He has served Falmuth and its royal family for a ''long'' time at over ''centuries'', something he prides himself over.
* SignatureLaugh: He has a loud and grating "ka-ka-ka" EvilLaugh that he lets out when acting smugly confident about his strength.
* SoLongSuckers: If he has to withdraw publicly, he makes a show of it. This is justified by the fact that anyone foolish or naive enough to attempt pursuit is usually going to run face-first into a booby-trap.
* TacticalRockPaperScissors: Invokes one by summoning a superior Earth Spirit to fight against Diablo. Diablo acknowledges the brilliance of this action[[note]]Diablo briefly explains that demons are strong against angels, angels are strong against spirits, and spirits are strong against demons[[/note]], [[ScissorsCutsRock then proceeds to instantly defeat the summoned Spirit by]] [[AttackItsWeakPoint hitting its core]]. Diablo then berates Razen for summoning such a young inexperienced Spirit and states that a creature that only relies on brute strength is no match for him.
* UndyingLoyalty: To his king and to Falmuth. Even after losing to Rimuru once and seeing his power firsthand, Razen still intended to save Edmalis from Rimuru's custody before Diablo came along to nip that in the bud. [[spoiler:He swears his loyalty to Diablo in part because he knows otherwise Falmuth would be destroyed.]]
* VillainousFriendship: With Folgen, due to the knight's loyalty to Farmus in spite of being a Summoned Otherworlder. Unlike the other three Otherworlders, he didn't magically enslave Folgen and saw him as a companion.
* VoicesAreNotMental: [[spoiler:After taking Shogou's body, he sounds just like the young man, albeit more refined in his speech. Folgen notes this and admits it's weird hearing him speak in such a way with that voice.]]
[[/folder]]

[[folder:Folgen]]
[[quoteright:241:https://static.tvtropes.org/pmwiki/pub/images/folgen.jpg]]
[[caption-width-right:241:Razen?! RAZEN!!]]
->'''Voiced by:''' Shunichi Maki (Japanese), Adam Rowe (English)

The captain of the guards for Falmuth and a loyal Otherworlder.
----
* AssholeVictim: In all his appearances, he shows himself to be such a massive scumbag, bringing about death and destruction purely because of what he can gain from it, that his [[DroppedABridgeOnHim sudden death]] by getting caught in Rimuru's Falmuth massacre can be considered too lenient and merciful a punishment for his monstrosity. In fact, just before his death he intended to gather together any surviving Falmuth knights and use them as {{Human Shield}}s to protect the king and the rest of the high circle (himself included) with his [Spearhead] skill as they fled, not intending to let any of them have a choice in the matter.
* BlingOfWar: Wears shiny metal armor.
* BoomHeadShot: On the wrong end when Rimuru is laying waste to the armies of Falmuth. One of Rimuru's beams of light pierces his brain, killing him instantly.
* CardCarryingVillain: Doesn't bother to hide how despicable he is. He even laments the deaths of Kyouya and Kirara, because they died in a way that kept him from stealing their skills.
* DroppedABridgeOnHim: Rirumu kills him before he can do anything. In the anime, he dies ''seconds'' after leaving the king's tent.
* EvenEvilHasStandards: He did at the very least look down on several of his men's [[RapeIsASpecialKindOfEvil open lust and desires for the various beautiful female monsters in Tempest]] and told them to get back to their duty.
* InformedAbility: According to Ifirit and Veldora's observations, Folgen is strong enough to be comparable to the former, meaning he's at least Special A Rank. The audience wouldn't know from how [[CurbStompBattle quickly]] he dies to Rimuru's attack.
* JumpedAtTheCall: When he was summoned by the magicians of Falmuth, he was overjoyed, and didn't need to be magically enslaved.
* MoreThanMindControl: One of his Unique skills is [Spearhead], which allows him to perform MindManipulation on anybody who willingly serves under him, enhancing their fervor into doing literally anything for him, even giving their lives acting as {{Human Shield}}s. Not that he gets a chance to use it before Rimuru kills him.
* NoBodyLeftBehind: Rimuru uses his corpse along with the rest of the slain Falmuth knights to summon Diablo and his two demon subordinates, which resulted in them all being devoured and used to contruct the demons' physical vessels.
* PowerParasite: He steals the special skills of any subordinate who dies before him, but there's a limit to how many skills he can steal this way.
* VillainousFriendship: With Razen, as despite being summoned by the mage he chose to willingly serve rather than need any magical enslavement, and ultimately they became friends.
* YouHaveOutlivedYourUsefulness: He's fond of killing his underlings when they're no longer useful, so he can steal their skills.
[[/folder]]

!! Falmuth's Otherworlders
A trio of souls summoned from another world like Rimuru, explicitly used as military assets for the kingdom.

[[folder:In General]]
* AssholeVictim: Despite their FreudianExcuse, their actions are so vile, nobody sheds a tear at their deaths, not even each other, aside from moments where the death of one inconveniences the others. Not even Falmuth cared about their deaths in particular [[spoiler:aside from the lost chance to transfer their Unique Skills to Folgen and Razen.]]
* FreudianExcuse: They are summoned without warning, or consent, enslaved by a magical curse, and forced to fight in an alien war with their lives on the line. This would grind on the sanity of anyone, but it's implied that they weren't good people to begin with.
* IgnorantOfTheirOwnIgnorance: They believe they are the strongest beings in the world despite never leaving Falmuth. While they are strong and a threat, they are nowhere near as powerful as they think they are.
* KidnappedByTheCall: They were summoned against their will and without warning to the world of the story. Both Shogou and Kirihara express hatred for being summoned to a "backwater" world without modern convinences, while Kyouya tries to look on the bright sides.
* KnightOfCerebus: Their appearance is the turning point for the series to get darker.
* LackOfEmpathy: They don't care about anyone else, not even each other, unless it suits their needs.
* OneManArmy: To their credit, they ''are'' legitimately powerful with their skills. Shogou and Mitsuni killed the entire individual teams of mages that summoned them (Shogou with his bare hands and Mitsuni with her CompellingVoice), while Tachinbana quickly became renowned as one of if not the best swordsmen in Falmuth. However, they vastly overestimate their abilities and it leads to their undoing.
* {{Sadist}}: They love seeing others suffer. If they're the ones suffering, on the other hand...
* SmugSnake: They love to flout their self-perceived superiority over others, but when they're on the losing end, they're quick to have a breakdown.
* TrappedInAnotherWorld: Like all the "wanderers," they can't go home.
* UnskilledButStrong: All three of them have very powerful skills, the only problem is they rely ''entirely'' on said skills. Two of them are beaten when they go up against opponents that have actually trained.
* UnwittingPawn: When they were summoned, and enslaved, they were told that the kingdom of Falmuth was in desperate need of defenders from evil monsters. It's not until much, much later that they learn different, but being enslaved by Falmuth, they have no other choice but to go along.
* WouldHurtAChild: Even children are not spared from their depravity.
* YouHaveOutlivedYourUsefulness: [[spoiler:What their ultimate fates would have been, being killed so their skills could be taken by [[PowerParasite Folgen]] and/or [[GrandTheftMe Razen]]. Shogou's just the only one who lived long to actually suffer this.]]
[[/folder]]

[[folder:Kyouya Tachibana]]
[[quoteright:200:https://static.tvtropes.org/pmwiki/pub/images/kyoya_anime.png]]
[[caption-width-right:200:Shut up, old man!]]
-> '''Voiced by''': Sho Nogami (Japanese), Creator/KylePhillips (English)
The swordsman of the three summoned black ops team.
----
* AbsurdlySharpBlade: His skill [Severer] produces invisible blades capable of cutting through just about anything thanks to being composed of the Space-element.
* ArrogantKungFuGuy: Thanks to his natural talent and his skills making him a MasterSwordsman, he quickly grew conceited and believed that he was superior to everyone else in the world and surpassed the likes of Hinata Sakaguchi. As a result, he doesn't take losing to Hakurou well ''at all''. Razen also calls out his arrogance after his death, stating that while Kyouya's Skills were indeed impressive, they were wasted on someone with little geniune skill or talent to use them to their fullest.
* BreakTheHaughty: When he's fighting Hakurou outside the magical debuff and anti-magic barriers placed on Tempest, he keeps getting smacked down by the sheer difference in power and skill between the two of them. He can't bring himself to believe that the only reason he had a shot previously is that he was being helped by the two barriers over Tempest, until his head is sent flying, and he slowly, oh-so-very-slowly, starts to die. And just to add a post-mortem insult to injury, Hakurou's next big fight is against the undead knight Albert, who at this point is a half-decayed swordsman who lacks any Unique Skill, unique equipment, or special advantage outside of pure skill and the immortality granted by his condition (which he didn't use as a crutch), in the very next arc, and Hakurou puts far more effort in just holding a ''draw'' than he ever did against Kyouya.
* CruelMercy: Self-inflicted. After being beheaded, his head takes three full minutes to die, but that's not the worst part. His own skill, [Hyper acceleration] is still active during this time, making him see and process information at 300 times normal. That means, from his perspective, he's experiencing the world as a severed head, ''for a minimum of 37 hours!'' If Kyouya had both of his mind accelerating skills active at their maximum output at the time of his beheading, he might have been experiencing his own death for 37,500 hours, which is 1562 days or ''over 4 years!''
* EyesAlwaysShut: When he's goofing around and admiring his own self of superiority, his eyes look shut, as seen in the page image. When he has to get serious, he opens them all the way and starts going full-tilt VillainousBreakdown.
* KarmicDeath: He's an arrogant MasterSwordsman who beat Hakurou (while he was weakened by two anti-magic barriers) and injured several civilians (including children) so that they'd die slow and painful deaths. During their rematch, Hakurou proves that he more than outclasses him under normal circumstances, and then beheads him while he was using a skill that accelerates his thought processes, forcing ''him'' to die slowly and painfully as a severed head.
* MaskOfSanity: He comes off as the calmer and smarter one of the trio, but once he starts fighting he's the most deranged and small-minded among all of them.
* MasterSwordsman: Even before he was summoned to this world he practiced fencing, and his skills were tailored to making him an even more dangerous swordsman to the point it was acknowledged he was the best in all of Falmuth. However, in spite of his growing ego, he's ''not'' the WorldsBestWarrior, as Hakurou demonstrates first-hand. Razen also mocks him post-death, claiming that Kyouya legitimately had powerful Skills and some talent, but they were wasted on a person who squandered his skill and talent to rely on said Skills like a crutch.
* ObliviousToHisOwnDescription: After beating Hakurou, he claims to Shogou that there's nothing more satisfying than cutting down someone filled with self-confidence. [[ArrogantKungFuGuy He]] finds himself on the receiving end of that during his rematch with Hakurou.
* OffWithHisHead: How he dies, oh-so-slowly.
* ShutUpKirk: As he's getting bested by the Kijin's best swordsman, and lectured on how he's in a clearly inferior position, he yells "shut up, old man" and then activates his [Hyper Acceleration] skill, hoping for a decisive blow in his favor. Unfortunately, there is a decisive blow alright, ''against him.''
* SuicidalOverconfidence: Despite Hakurou showing just how outclassed he really is under normal conditions, Kyouya refuses to accept that he's already lost and only grows more desperate to try and gain a nonexistent advantage to the point of ranting angrily as he keeps attacking. Even fellow ArrogantKungFuGuy Shogou was at least smart enough to realize when he was outmatched to try and run or beg for mercy.
* SuperReflexes: [Hyper Acceleration] allows him to perceive and react at over 300x normal speeds, such that to him most enemies seem to be standing still as he strikes them down while they're helpless. In a pinch, he can up the speed to 1000x normal. This ends up turning against him when Hakurou reveals ''he'' can [[SuperSpeed move so fast [Hyper Acceleration] needs time to catch up with his movements]], meaning that Kyouya can only stare in shock and horror as his head is severed from his shoulders and he can't do a thing about it but suffer.
* ThrowingYourSwordAlwaysWorks: He can fire his blade out of the sword hilt at a target and use the [[SpaceMaster spatial element]] to duplicate it into a StormOfBlades. Hakurou easily countering all of them without trouble is the first [[OhCrap break in his otherwise confident face]].
* UnknownRival: He goes off spouting about how his power is superior to Hinata. Not once does Hinata herself ever mention him, implying that she doesn't even know who he is.
* WouldHitAGirl: He's quite eager to cut up Shuna during the attack on Tempest and expressed his desire to do the same to Hinata.
* WoundThatWillNotHeal: By using the Spatial element, he can imbue the wounds he causes with it so that they won't heal naturally or with magic. Rimuru has to analyze and remove the magic affecting Hakurou's wounds from his first battle first before they can start healing them.
[[/folder]]

[[folder:Kirihara Mizutani]]
[[quoteright:200:https://static.tvtropes.org/pmwiki/pub/images/kirara_anime.png]]
[[caption-width-right:200:Oh, what took you so long. I was getting bored, yanno?!]]
-> '''Voiced by''': Hiyori Kono (Japanese), [=Meg McClain=] (English)
----
* AlasPoorVillain: In the anime, her last words were gasping out "Mom" just before Shogou gives her a NeckSnap. The other adaptations don't give her this luxury.
* BerserkButton: She's rather obsessed with maintaining her appearance, and views herself as a very alluring woman. As a consequence, anybody that insults her looks, such as Gobta calling her a "little girl" leagues below Shion in beauty, infuriates her immensely, to the point she dropped her FakeCutie act and tried to simply command everybody in Tempest to "die".
* CompellingVoice: With her Unique skill [Bewilder], she can use the power of her voice to buff allies or debuff enemies with certain orders. This includes ordering people to kill themselves.
* CripplingOverspecialization: Unlike Kyouya and Shogou, who have actual combat prowess to back up their Unique skills, all she has going for her is [Bewilder], with her otherwise being physically the same as any other teenaged human girl. Anybody that can outright ignore her CompellingVoice will find her quite defenseless if caught alone.
* EvenBadMenLoveTheirMamas: She's completely remorseless about all the deaths she has caused with her ability, but in the anime her last words before dying to Shogou shows that she still loved her mother enough to cry out for her.
* TheFakeCutie: This is her attempted method for inciting a "justified" war between Tempest and Falmuth, invoking a WoundedGazelleGambit by pretending to be an innocent human girl assaulted by Gobzo, making everybody else believe her lie with [Bewilder], and trying to incite Gobzo into attacking her. Her plan fails due to Gobta coming by and clearing things up, and him innocently insulting her looks makes her drop the act.
* IWantMyMommy: Her final words in the anime as Shogou kills her.
* LogicalWeakness: Her voice has to be heard to have an effect, so if there's a loud commotion going on, she's useless.
* NeckSnap: Her demise comes about through Shogou performing a NeckLift on her and squeezing harder and harder, strangling her until her neck gives out and makes a loud snap.
* PowerLimiter: Due to how dangerous her CompellingVoice is along with her open hatred for the people that summoned her, Razen put a magic limiter on her than prevents her from using it normally, only lifting it for her mission to Tempest.
* TooDumbToLive: While there's a battle going on just outside her tent, she completely lowers her guard and starts painting her fingernails, rather than preparing to run or hide. It gets her killed.
* WrongAssumption: She presumed that since Shogou was coming into her tent, he'd won his fight. The real reason he was there was trying to run and hide. She winds up being killed by him to boost his own strength and recover from injuries he got from fighting Geld.
[[/folder]]

[[folder:Shogou Taguchi]]
[[quoteright:200:https://static.tvtropes.org/pmwiki/pub/images/shogo_anime.png]]
[[caption-width-right:200: [[{{Hypocrite}} Pfft, people who have an advantage against me are cowards. When I have the clear advantage over others, that's their tough luck]]]]
-> '''Voiced by''': Creator/ChiakiKobayashi (Japanese), Creator/MattShipman (English)
----
* ArrogantKungFuGuy:
** Very, very arrogant. He presumes he can beat anyone in close-quarters combat, and those wearing armor or shields are cowards. He goes so far as to claim he's an equal of Hinata Sakaguchi, one of and leader of the Ten Great Saints of the Western Saints Church.
** In the anime he boasts himself to be invincible after gaining the [Survivor] skill. Geld proves him wrong the very second they resume fighting.
* BareFistedMonk: His main fighting style, which he already versed in even before summoning and helped along by his skill [Berserker] giving him boosted physical strength and defense. His bare fists can even punch through the solid metal of Geld's thick shield.
* BattleStrip: In the light novel, when he decides to get serious against Geld, he throws off his jacket. This proves a fundamentally bad idea.
* BeCarefulWhatYouWishFor: Attempts to goad Geld into dropping his battle gear to (fakely) invoke LetsFightLikeGentlemen with their fists. Geld after reaching the limits of his patience does indeed drop his weapon and decide to fight with his fists, so that he can give Shogou a drawn-out and painful NoHoldsBarredBeatdown.
* CameBackStrong: After barely surviving his fight with Geld (and killing Mitsuni to recover), he gains a new skill [Survivor], which gives him an enhanced HealingFactor. It's heavily implied it was influenced by his sheer terror at dying. Not that it does him much good against a pissed off Geld, who holds back considerably less.
* DeathOfPersonality: [[spoiler:His soul is destroyed by Razen who then [[GrandTheftMe takes his body for himself.]]]]
* DirtyCoward: He loves to lord it over others when he thinks he's in the superior position, but when he's in the inferior position, he's shameless in running, hiding, begging, or doing whatever he can to prolong his own life.
* GatheringSteam: One of the abilities [Berserker] gives him is that he gets stronger the more people that die around him, whether by his own hands or of others.
* HealingFactor: [Survivor] gives him both Elemental Resistances and Rapid Regeneration, with him boasting that he could get his head cut off and he would come back. Geld decides to give it a work out and starts beating him with his bare fists along with [[MakeThemRot rotting him with the [Corrosion] skill]], resulting in Shogou's boasting quickly turning to frantic begging to stop since he did ''not'' get [[FeelNoPain Pain Nullification]] as part of the package, and when Geld decides to "split his skull in half" to end it Shogou runs screaming. [[spoiler:Nor does it save him from soul damage, as proven when Razen destroys his soul.]]
* {{Hypocrite}}: In the manga, he calls Geld summoning a second shield "a dirty trick" when he attacked helpless demi-humans, including women and children, inside Tempest, as they were weakened by not one, but two barriers; a monster-weakening barrier, and an anti-magic barrier.
* ImAHumanitarian: It's completely omitted from both the manga and anime, but the light novel notes that the way he managed to acquire [Survivor] after killing Kirihara was through consuming her flesh in order to absorb her Otherworlder essence, showing just how far he's willing to sink morally for power. It's also why Geld got especially angry at him for his power-up, since it reminded him of his people's own desperation to survive that brought them to become ravenous savages under [Starved] who were willing to eat even their own friends and family.
* ImmortalityHurts: He clearly forgot about this trope after getting the [Survivor] Skill, thinking that it made him invincible. Geld proceeds to pummel him over and over, wondering how long he can hold out against the pain as his body constantly heals away any damage.
* JustJokingJustification: As Geld pauses briefly to catch his breath, Shogou pleads and begs that all his earlier insults, bluster, and despicable acts were just "a joke," empty bravado, and "he didn't mean it." This does absolutely nothing to sway Geld into sparing him.
* LetsFightLikeGentlemen: He calls out Geld for being in full battle gear when they square off, to which Geld retorts that his logic doesn't make sense. [[SubvertedTrope Of course, Shogou doesn't really want to fight fair]], and just wants to see if Geld can drop his gear.
* KarmicDeath: He murdered Kirihara for a quick power-up. [[spoiler:Razen murdered his ''soul'' to steal his body.]]
* KickTheSonOfABitch: He murders Kirihara Mitsuni for a power-up. While this is still a horrific act, she was an asshole who didn't pay any attention to his clear wounds and did many horrific things on-screen.
* PsychologicalProjection: Since he's a complete coward, he angrily accuses Geld of being a coward for wearing armor and having a shield.
* RequiredSecondaryPowers: Averted. He gains the skill [[HealingFactor [Survivor] that comes with instant regeneration]] after murdering Mitsuni and boasts about how he's become invincible because of this. However, since he doesn't get [[FeelNoPain [Pain Nullification],]] he still feels any damage done to him and becomes totally helpless as Geld gives his newfound power a workout by [[NoHoldsBarredBeatdown repeatedly pounding him into the ground]].
* RightForTheWrongReasons: He was right to be distrustful of Falmuth, knowing that he and the others were only pawns to be used. Unfortunately for him, [[spoiler:he didn't realize Falmuth intended to ultimately dispose of them in order to harvest their Skills.]]
* ShutUpKirk: While fighting Geld, he repeatedly yells "Shut up, Pig" as the latter was pointing out that this is a war, not a sporting event, and there's nothing "dirty" or "cowardly" about bringing your full might to bear on the enemy, or coming from an advantageous position against an enemy combatant.
* VillainsWantMercy: As Geld is pounding his face into mush, he repeatedly begs Geld to stop. Geld decides to grant mercy, alright, in the form of a MercyKill. Shogou runs away screaming in terror at the prospect.
* UnknownRival: Like Kyouya, he gloats how much stronger he is than Hinata. Again, Hinata never mentions him and is very clearly far stronger than he will ever hope to be.
* WouldHitAGirl: Not only does have no qualms attacking and even killing women, as shown with both Shion and Kirihara, he actually gets some notable sadistic glee out of targeting females specifically.
* WrongAssumption: When he starts pounding on Geld, with the latter doing nothing to retaliate, he presumes Geld's too overwhelmed by his sheer awesomeness to fight back. What's really going on is that Geld's using a [Corrosion] ability. He winds up looking at his limbs and realized he was basically punching a bag of formic acid.
[[/folder]]

!Holy Empire of Ruberios

[[folder:Hinata Sakaguchi]]
[[quoteright:350:https://static.tvtropes.org/pmwiki/pub/images/hinata_anime.png]]
[[caption-width-right:350:[[PrepareToDie I don't think we've meet before. Though I'll be saying goodbye soon.]]]]
-> '''Voiced by''': Creator/ManamiNumakura (Japanese), Creator/AlexisTipton (English)

Another Otherworlder from Japan, Shizue's first and most loyal disciple, leader of the Ten Great Saints, and supreme commander of both the Holy Empire's military and the Imperial Holy Church's paladins. Thanks to ''someone'' painting Rimuru in the worst possible light, she comes at the slime protagonist, seeking to kill him and destroy Tempest in revenge for Shizue's death. She refuses to let him speak, and pointedly does not listen to his explanation regarding the incident.
----
* AdaptationalPersonalityChange: She undergoes quite the change in personality between web novel and subsequent adaptations. In the web novel, she was something of a sociopath with a self-righteous mindset [[spoiler:plus being under MindControl]] that only mellowed out after more interactions with Rimuru and Tempest. In the light novel, while still capable of self-righteousness she's much more mellowed out and heroic [[spoiler:and not under any mind manipulation]] even before her proper HeelFaceTurn. Notably, [[spoiler:in the web novel she went straight to the Holy Empire's Seven Luminaries to request a weapon and the forces necessary to destroy Rimuru after learning he survived and became a True Demon Lord and was being mind-controlled in part by Yuuki's influence. In the light novel she reflected on her actions after the fact, realized she had been duped by false information and let her emotions get the better of her, and was willing to give Rimuru the benefit of the doubt before being given ''another'' source of false info courtesy of the Seven Luminaries (who were manipulating her to get her ''and'' Rimuru killed) that made it seem like he wanted a one-on-one duel. Even then, she was amazed enough at witnessing Tempest's prosperity that she truly wanted to apologize and try for peace before fighting.]]
* AntiMagic: Her body naturally dispels and purifies Magicules, meaning she has innate resistance to most magic aside from Holy, which doesn't rely on Magicules but rather faith, or certain Ultimate Skill effects, as long as they don't come from herself. [[spoiler:This also includes healing based magic or magic potions, meaning Rimuru can't heal her with his potions when she takes a fatal blow for him and is forced to outright create a replacement heart for her to extend her life long enough to get proper treatment from Luminous' Ultimate Skill.]]
* ArmorPiercingAttack: Her "Dead End Rainbow" sword is completely unblockable and tears through armor to strike directly at the soul. Notably, this is one of the few techniques legitimately and reliably capable of killing [[BlobMonster Rimuru]].
* AwesomeByAnalysis: Her [Mathematician] Unique Skill allows her speed up her thought processes, analyze the battlefield, and even predict attacks, to the point she can keep up with Great Sage and even Raphael. [[spoiler:Rimuru needs to outright develop a CombatClairvoyance skill of his own to keep up.]]
* DavidVersusGoliath: Her Unique Skill [Usurper] encourages these kinds of matchups with her on the weaker end by letting her steal skills from those who are stronger than her. It has a chance of failure, but she can use it as many times as she wishes until she succeeds. [[spoiler:However, it flat-out won't work against foes with Ultimate Skills due to their inherent immunity to lower tier skills as she learned first-hand when she used it on True Demon Lord Luminous, and its failure against Rimuru in their second bout is all the proof she needs to know he's definitely in Luminous' tier now.]]
* DefeatMeansFriendship: [[spoiler:Continuing the trend of how Rimuru makes friends and allies, Hinata joins his circle after her defeat. She even ends up falling in love with him after inadvertedly ending up on a 2000 year long time travel trip as a soul inside of Chloe's body and listening to the love-struck girl talk about him during that time.]]
* DissonantSerenity: As she's attacking Rimuru, she never once falters or changes her demeanor, regardless of what's going on, even when Rimuru uses "Gluttony" to eat her sword, go OneWingedAngel, and still attack her even though (she believes) his soul is dead.
* TheDragonslayer: In the light novel, she is given the "Dragon Buster" sword to fight Rimuru and Veldora by the Seven Luminaries. She finds the name a little on the nose, and flat-out drops the sword with no intent of using it when she prepares for her fight with Rimuru. [[spoiler:It was actually a booby-trapped weapon meant to explode at a critical moment during the fight between her and Rimuru.]]
* FantasticRacism: She utterly refuses to see "monsters" as anything other than targets to exterminate, [[spoiler:with her even viewing Luminous Valentine (for all her loyalty) as a NecessarilyEvil that she would exterminate if she ever deviated from her selfish benevolence towards humans.]] {{Justified}} by the fact that ever since she arrived in this world she was leading the charge in ''protecting'' humans from rampaging monsters and went so far as to reorganize the Church's military so they could better deal with attacks. She had never fought a monster that ''wasn't'' a threat trying to hurt someone. [[spoiler:She drops this behavior after seeing Tempest's glory with her own eyes and burying the hatchet with Rimuru.]]
* HeelFaceTurn: [[spoiler:After Rimuru defeats her in their second encounter, she calms down and listens to his side of the story, apologizing to him and his people and finally burying the hatchet.]]
* HolyHandGrenade: Her spell "Disintegration" is a massive light attack that destroys souls and can level a mountain if she didn't specifically contain it to a special barrier. She can focus it into a [[SwordBeam single sword slash]] called "Melt Slash" as her ultimate attack.
* HolyIsNotSafe: She wields plenty of holy magic spells and they're all insanely dangerous, with huge area of effect attacks, and can't differentiate friend from foe.
* IveComeTooFar: She briefly undergoes this after her first fight with Rimuru [[spoiler:and realizes upon returning to the Holy Empire that the merchants who gave her info had lied and manipulated her, but she decides that she's burned any bridges she could have forged with him and thus doesn't hesitate in their second fight when it comes down to it despite her growing doubts. Then it becomes subverted when she realizes just how far the conspiracy goes and goes the TakingTheBullet route, and Rimuru shows he could in fact forgive her.]]
* KnightTemplar: She is extremely judgemental and self-righteous, self-admitted at that. Justified as she was raised that way.
* LightIsGood: In the light novel and subsequent adaptations, she wields holy and light based magic, wears paladin gear, and is considered a foremost champion and hero of humanity who desires to safeguard them. She originally comes into conflict with Tempest and Rimuru thanks to misinformation and her own grudge, but proves in time to be a stalwart ally as well.
* LightIsNotGood: She wields holy and light based magic, wears white paladin gear, but in the web novel she's so self-righteous and judgemental that she's a menace.
* LockedOutOfTheLoop: She was purposefully given the sparsity of details to make it certain that Rimuru would be seen as a cruel monster in her eyes. When Rimuru tries to fill in the holes, she refuses to listen. [[spoiler:She realizes after the fact that she was likely manipulated and lied to and Rimuru really was trying to tell her the truth, but considers it a case of IveComeTooFar. She then tries to go Tempest to properly apologize, but the conspiracy of the Seven Luminaries ends up playing Hinata and Rimuru against each other again. Later when everything comes out, she willingly listens and is quite horrified to discover she was played like a fiddle.]]
* MagicKnight: She is equally skilled with the sword and holy attack magic.
* MasterSwordsman: She is so skilled with the blade that it makes Rimuru think he's fighting "Great Sage." During their second fight, Rimuru notes in a straight sword fight the only one who could match her would be Hakurou, and he would still ''lose'' in the end.
* MercyKill: She does this to an undead messenger Rimuru sends in the web novel.
* AMotherToHerMen: Played with. She does indeed care about the Knights under her command, but it's not out of true concern for their well-being. It's because they've been entrusted to her by [[spoiler:Luminous]] and thus should be cared for like one would care for a set of good weapons or tools.
* MyGodWhatHaveIDone: [[spoiler:After she finds out that Rimuru did not kill Shizu and learning the severity of what Falmuth has done to Tempest as she was trapping him.]]
* NamedWeapons: She wields plenty of them, such as "Dead-End Rainbow", "Drago Buster" and "Moonlight".
* NoNonsenseNemesis: She is completely and totally focused on her mission to destroy Rimuru, trapping him in a barrier that prevents him from using his more powerful skills, equipping herself with a sword-skill that can kill him, and refusing to listen to his reasoning. When she learns that not only did he survive their first duel but has also become a Demon Lord, her response is to arm herself to the bone with holy weapons and lead an army of powerful Templars to Tempest to finish the job.
* OneManArmy: She's one of the most powerful humans in the west, capable of challenging and defeating ''Demon Lords'' under the right conditions. In the light novels, Rimuru even outright states that Hinata alone is more dangerous ''than the entirety of the 20,000-strong army of the Kingdom of Falmuth''. She's also the leader and strongest of the Church's paladins, with even an average one said to be worth several hundred to a thousand men on their own.
* PowerParasite: Her Unique Skill [Usurper] allows her to steal and copy the Skills of her enemies, albeit only those who are stronger than her, and while it has a chance to fail she can reactivate it with little cost to herself as much as she wants until she succeeds. She can also use [Forced Usurption] to steal the power of those weaker than her, but that costs even more energy to use.
* RevengeBeforeReason: When she hears that Rimuru is responsible for Shizue's death, she devotes herself to destroying him and the entire nation of Tempest in revenge, and refuses to hear the specifics, stating "only the end result matters, the particulars are meaningless." [[spoiler:When she realizes she was manipulated in the light novel, she does regret her actions but believes [[IveComeTooFar she's burned any bridges she could have made with Rimuru]], but she comes around.]]
* RoyalRapier: Her ultimate weapon is Moonlight, a rapier given to her by [[spoiler:Luminous]]. It has the ability to pierce dimensional barriers and ignore defenses.
* SoulCuttingBlade: With the Dead-End Rainbow, she can use "rainbow magic" to destroy your soul if she manages to land seven consecutive sword strikes.
* SurpassedTheTeacher: She had surpassed the strength of Shizue within a ''month'' of her tutelage, as well as the Seven Luminaries of the Church. [[spoiler:But then subverted to even her shock when Granbell Rosso, the mightiest of the Seven and a former Chosen Hero himself, reveals both the depths of his millenia of skill and is able to rejuvenate himself to his prime]].
* TakingTheBullet:
** In the light novel, [[spoiler:when she realizes just how deep the conspiracy goes during her second battle with Rimuru, she ends up willingly shielding him from the exploding Dragon Buster sword given to her by the Seven Luminaries and is fatally injured, though ultimately saved by Luminous' Ultimate Skill.]]
** Later in the light novel, [[spoiler:she takes a fatal Melt Slash from Granbell to protect Chloe, which starts outright destroying her ''soul''. It takes Chloe undergoing a FusionDance and SharingABody with Hinata's soul into her own body to save her.]]
* TookALevelInIdealism: [[spoiler:Her time in Tempest and witnessing all the technological and societal progress gives her a new perspective on monsters.]]
* UnwittingPawn: [[spoiler:Yuuki, the merchants, and even the Seven Luminaries sure knew how to make use of her focus of avenging Shizue.]]
* WakeUpCallBoss: Hinata is the first True Demon Lord-tier enemy Rimuru fought, and the first enemy fought in a straight battle where Rimuru could not win. She's far more skilled, can counter everything that Rimuru could throw at her and has an attack that ignores Rimuru's defenses. All Rimuru could do is trick her into defeating a decoy and then hide until she left.
* WhenSheSmiles: Rimuru notices that when she actually legitimately smiles, she's incredibly beautiful.
* WorldsBestWarrior: Hinata is considered the greatest warrior of the Holy Church and on a comparable power tier to a True Demon Lord [[spoiler:as proven by Luminous' faith in her]] when using her best weapons and armor, having long ago surpassed the strength of the likes of Shizue and being able to kill unawakened Demon Lords [[spoiler:like when she mutually fatally injured Roy and Louis Valentine when she discovered their vampire identities before Luminous saved all of them.]]. Rimuru even admits during their second fight that despite his True Demon Lord ascension, Hinata far surpasses him in sword skill and technical ability and it's only his boosted physical abilities and various skills that compensate to give him the advantage. Short of [[spoiler:Chloe once she unlocks her full power, part of which ''comes from'' her FusionDance with Hinata, and Granbell Rosso (who had to rejuvenate himself to his prime in order to take the decisive edge)]], she's the strongest human of the western nations and only surpassed by specific individuals of the Eastern Empire.
[[/folder]]

[[folder:Louis Valentine]]
!!!Pope Emperor

The Pope Emperor of the Holy Empire of Ruberios who ostensibly leads the nation, he is in fact the figurehead for Demon Lord Luminous Valentine's rule and "twin brother" of her Demon Lord stand-in Roy Valentine.
----
* BloodKnight: Louis loves a good fight as much as Roy does, the difference being Louis has his bloodlust under much better control. [[spoiler:And far better than their original self Valentine did.]]
* BloodyMurder: Like Roy, his SignatureMove is Blood Ray, where he [[BloodMagic turns his blood into magical particules]] and fires them as beams at his targets.
* PuppetKing: Almost everyone in and out of Ruberios believes he is the leader, when he's actually just the figurehead for Luminous.
* SplitAtBirth: [[spoiler:Louis and Roy were once a single vampire named Valentine, but his sheer BloodKnight and sadistic attitude lead to his defeat and splitting by Luminous' Unique Skill into two separate individuals. When Roy dies fighting Laplace, that lost power returns to Louis, though thankfully with his calmer temperment still intact.]]
* TookALevelInBadass: He's roughly as strong as his brother Roy, who is strong enough to be considered equal to an unawakened Demon Lord like Carrion. [[spoiler:Absorbing his brother's power after his death by Laplace's hands effectively doubles his power and makes him Luminous' strongest vampire subordinate.]]
[[/folder]]

[[folder:Clerics of the Seven Luminaries]]
The highest consultants of the Western Saints Church and said to be the closest to the God Luminous, the Seven Luminaries hold the duty of training prospective Champions and Heroes for the Empire and Church and are in theory the ultimate authority in matters pertaining to the Church. They are Gran, Dina, Ars, Meris, Salun, Vina, and Zaus.
----
* AdaptationalSpeciesChange: In the web novel they were vampire servants of Luminous, but in the light novel they are instead LongLived human Sages granted extended lifespans and authority by Luminous.
* NoBodyLeftBehind: [[spoiler:The ultimate fate of everyone except Gran: three of them are vaporized by Luminous' [[OneHitKill Death Blessing]], three are sucked into Diablo's [[AndIMustScream World of Temptation]], and even Gran himself ends up getting his BodyDouble vaporized by Cardinal Nicholaus' [[HolyHandGrenade Disintegration]].]]
* ThereIsNoKillLikeOverkill: [[spoiler:Three of the Luminaries decide to wipe out Rimuru, Hinata, and all nearby monsters and paladins with [[HolyHandGrenade Disintegration]] cast ''in triplicate''. Were it not for Raphael using the data from absorbing Hinata's Melt Slash to perfect Covenant King Uriel's Absolute Defense against Holy attacks, it might have even worked.]]
* UriahGambit: They have a habit of doing this to perceived threats to their power and position. They set up Adalman and his comrades to die fighting a ZombieApocalypse over a thousand years ago [[spoiler:and [[LetsYouAndHimFight attempt to goad Hinata and Rimuru into Round 2]] in the hopes of getting one (preferably Hinata) or both of them killed.]]
* WeHardlyKnewYe: With the exception of Gran/Granbell Rosso, all of them are formally introduced and meet their ends within the span of Volume 7 of the light novel without much elaboration on their personalities aside from smugness.
[[/folder]]

!Otherworlders
[[folder:Shizue Izawa]]
!!Shizue Izawa
!!!Explosive Monarch
[[quoteright:300:https://static.tvtropes.org/pmwiki/pub/images/shizu_anime.png]]
-> '''Voiced by:''' Creator/YumiriHanamori (Japanese), Creator/DawnMBennett (English), Jocelyn Robles (Latin American Spanish)

Another human reincarnated into this world from the Tokyo Firebombings of UsefulNotes/WorldWarII, she is a Summon who houses the soul of the Fire Giant, Ifrit, and bears a deep connection to Rimuru's fate...
----
* BrokenAce: Shizu became a hero spoken of as "[[RedBaron The Explosive Monarch]]" and did plenty of good in her life fighting monsters, saving lives, and trying to help fellow Otherworlders where she found them. She was also deep down a woman who hated the world she was summoned into because it separated her from her mother and hated herself for possessing the power of Ifrit, since she periodically lost control and killed people she cared about. It's telling that when she dies, her DyingDream involves her reuniting with her mother while reverting back to her childhood self.
* CastFromLifespan: Overexerting her magic fighting a dragon caused her to age, though to be fair she is in her 70s-80s even if she appears otherwise.
* CoolTeacher: Actually the only one able to keep the Summons class in the Freedom Academy at Incracia in check. [[spoiler:At least until Rimuru took over.]]
* CoveredInScars: Under her clothes she still has the burns from her summoning, and she only survived them because Leon had Ifrit possess her.
* CursedWithAwesome: She suspects her youth might be a curse from the demon lord but is happy with it.
* CuteGhostGirl: While she's still very much dead and nobody can see her, she periodically makes appearances in ''The Slime Diaries'' from the afterlife. In episode 8 she straight up walked among the living since there was a festival with a "spirits will visit the living" belief that becomes literal in this world, while the rest of the time she simply looks out from Heaven to comment on things. As she can't actually interact with the living anymore, she frequently watches as her friends do things that tarnish her name and memory in harmless but embarrassing ways, such as seeing Rimuru running around wearing a bunny suit with her appearance or the Blumund trio being distracted from her memory by other things.
* ADayInTheLimelight: The anime has the entirety of episode 24 be dedicated to one of her past adventures, specifically detailing her meeting with the demon that would eventually be named "Diablo".
* DeathByOriginStory: Her character is basically there to die and in the process give Rimuru a human form and a few plot threads like Leon Cromwell and the children in Ingracia. The light novel and further adaptations flesh her out a bit more, but the basics remain the same.
* DemonicPossession:
** When Ifrit originally took her over, he used her body as a vessel, but she was eventually able to take back control thanks to a hero and the use of her Anti-Demon Mask. However, recently, Ifrit began to regain strength thanks to her own own dwindling lifespan, and ultimately she falls back under it and forced to fight Rimuru. [[spoiler:However, it should be noted that Leon did this specifically to extend her lifespan, as she wouldn't have survived the burns from her summoning otherwise.]]
** The anime also changes the nature of the possession to a minor extent. In the manga, Shizue completely lost herself to Ifrit upon her original possession and only regained herself thanks to being defeated by a hero and gaining her mask. In the anime/light novel, Shizune had more control, but Ifrit could usurp her against her will if he sensed a threat in Leon's presence. The amount of time she could go without wearing the mask without risking losing herself again to Ifrit is also much smaller in the manga.
* FlamingSword: One of her preferred tactics is to wreathe her blade in fire to increase its destructive power.
* ImHavingSoulPains: Due to the fact that Ifrit is slowly starting to regain control as her life nears its end.
* InSeriesNickname: "Shizu," which was originally coined by her summoner after she told him her name as "Shizu...e" and he took it as "Shizu E."
* TheLostLenore: To Rimuru. While it is unknown if he had romantic feelings for her, her death left a significant impact on him as he swore to take care of the summoned children that she taught and confort Leon Cromwell for his actions towards her.
* MaskOfPower: Her CoolMask isn't just for show, it has anti-demon properties which helps her suppress Ifrit's influence on her mind and body. Rimuru eventually takes it as a MementoMacGuffin.
* MindControlEyes: When they turn [[RedEyesTakeWarning glowing red]], that's when Ifrit starts taking over Shizue's mind.
* MyGodWhatHaveIDone: Had [[HeroicBSOD a really bad one]] in the past when Ifrit took her over and made her torch her fellow child friend and her monster pet to ashes upon viewing said pet as a threat to Leon. (Anime/Light novel only; in the manga, [[DemonicPossession once Ifrit is inside her she doesn't regain control for quite some time.]])
* OhCrap: Shizue has one every time Ifrit starts taking her over.
* OlderThanTheyLook: She was reincarnated during UsefulNotes/WorldWarII as a child, which would put her in her 70s to 80s, but she still looks barely over her mid-20s at latest. This actually helps her keep up a disguise along with her nickname of Shizu, as none of her fellow adventurers realize that she's actually the retired hero known as "The Explosive Monarch."
* PlayingWithFire: Gains this as a result of her possession by Ifrit.
* PosthumousCharacter: She only had the barest amount of character about her detailed while she was alive, just enough to make Rimuru and the audience sympathetic to her plight. The vast majority of her character, both in terms of personality and how she affected the world, gets revealed over time through the story long after she perished and got absorbed by Rimuru.
* RedBaron: When going by her real name of Shizue Izawa, she was known throughout the land as the "Conquerer of Flames", both because she had the flame spirit Ifrit possessing her, and because she maintained control over the spirit and utilized it's fiery powers to help others.
* RetiredBadass: She's apparently been retired for ''50 years'' according to the adventurers.
* {{Revenge}}: She hates Leon Cromwell for summoning her half-dead from flames, having Ifrit [[DemonicPossession take over her body]], and then abandoning her to fight a hero as a sacrificial pawn. Her desired goal before dying was to find and hurt him for all of it, and asks Rimuru to do the job for her as part of her LastRequest. Of course, the truth is a bit more complicated than that...
* ScarsAreForever: Magic can't heal her burn scars because merging with Ifrit stabilized her body to its current state.
* SpitTake: Did one when Rimuru said he wasn't a bad slime because it reminded her of Yuuki talking about ''VideoGame/DragonQuest''.
* TogetherInDeath: Gets reunited with her mother once she finally passes.
* TransformationOfThePossessed: Happens to her when she fully loses control of Ifrit. She goes back to normal when Rimuru uses Predator on him and thus separates them.
* WizardsLiveLonger: Stopped aging at 16 or 17 thanks to either Ifrit or the demon lord.
* YourDaysAreNumbered: Despite her [[OlderThanTheyLook youthful appearance]], Shizu is quite old, in her 70s at best, and is at the end of her life. She left her retirement to exact her revenge on Leon Cromwell for summoning her from her original world, but her trip was cut short as she had no more strength to contain [[DemonicPossession Ifrit possessing her]]. Though Rimuru [[CurbStompBattle ended up beating the fire spirit quite handily]], thus freeing Shizu, the strain of combat was too much for her (not to mention Ifrit actually [[PhlebotinumMuncher keeping her alive all that time]]) and she died soon after the fight.
* YouWillBeAssimilated: On her deathbed, she tells Rimuru to absorb her using [Predator] to gain her powers and fulfill her {{Last Request}}s (to save the summoned children and to take revenge on Leon for her). Rimuru doing so is what allows him to regain a human form at last, which looks like a younger blue-haired, golden-eyed version of Shizue herself.
[[/folder]]

!!Summoned Children

[[folder:The Summoned Children in General]]
A group of five small children who, like Shizu, were summoned in order to turn into Heroes. However, because the process of summoning has some unforeseen consequences, the children now only have a few years left to live.

It is Rimuru's mission now to help the children move past their life expectancy, as Shizu's last desire.
----
* AlwaysSecondBest: All of them are this to Chloe, but it's most noticeable with Kenya. Unlike the others, who merged with Superior Spirits Rimuru created from fusing multiple minor spirits together, Kenya bonded with the Spirit of Light who outright blesses Heroes with divine protection and told him he has the potential to be a Hero just like Shizu, and he's one of the most skilled swordsmen of the bunch after his training. [[spoiler:Unfortunately for him, Chloe merged with her future self that's basically a demigod, he self-admits she's a better swordsman over him, and she's ''the'' True Hero]].
* FiveManBand:
** TheLeader: Kenya, the HotBlooded and impulsive leader.
** TheLancer: Ryota, TheStoic and shy boy compared to Kenya.
** TheSmartGuy: Gale, the oldest and wisest member of the group.
** TheBigGuy: Chloe, the most talented and strongest member of the group.
** TheChick: Alice, the SpoiledSweet of the group, who is very caring once you get past her haughty demenour.
* FusionDance: Power Booster variation. They all go through this in order to stabilize their magicule levels with Superior Spirits.
* HeroicRROD: The origin of their shortened lifespans. Summoned Otherworlders have an immense number of magicules but children do not usually inherit the Unique Skills necessary to put them to sufficient use. Pair that with the strain of containing such power on an immature body and children summoned to the Otherworld will eventually have their bodies destroyed due to their own power.
* MagicKnight: They become this thanks to their training under Rimuru, Hakurou, and Hinata, becoming equally versed in using weapons as much as their Skills and magic.
* MasterSwordsman: Kenya is the straightest example of the bunch since he's the one who mainly relies on a sword, but all of them have some swordsmanship skills at their disposal.
* SharingABody: All of them are this thanks to being fused with Superior Spirits, and even have the ability to communicate with them to some extent.
* TeacherStudentRomance: Alice is implied to have [[PrecociousCrush feelings for Rimuru]] at first, but she seems to get over them as the story hints she's growing a thing for Kenya. Chloe, on the other hand...
* TwoGirlsToATeam: Chloe and Alice are the only girls in the class, with the rest being boys.
* YourDaysAreNumbered: When Rimuru first meets them they only have a few years left to live, since the magicules in their bodies will eventually collapse if nothing is done about them. This ceases to be an issue once Rimuru and Ramiris stabilize them with the power of spirits.
[[/folder]]

[[folder:Kenya Misaki]]
[[quoteright:150:https://static.tvtropes.org/pmwiki/pub/images/kenya_anime_2.png]]
-->'''Voiced by:''' Ayaka Asai (Japanese), Creator/BrittanyLauda (English)

One of the five Summoned Otherworlder children taught by Shizue Izawa. He is shown to be the unofficial leader of the Class S children and one of the kids who was most mistrustful of Rimuru upon meeting him.
----
* AffectionateNickname: His friends affectionately call him "Ken".
* AwesomeButImpractical: Kenya has a habit of doing this. When Rimuru first mock-battled him, he had a habit of using flashy attacks with long windups that wasted his energy when they missed. Even after he gets proper training, he starts incorporating moves from various manga into his swordsmanship that look cool or have ConfusionFu style tricks, but they use overextending movements and have openings a quick enough foe could easily take advantage of.
* ElementalHairColors: He has orange hair and his prefered magic is to use fire-based attacks, like Shizu.
* TheHero: His possession of the Spirit of Light showcases that he has the possibility to become a Hero in the future.
* TheLeader: He is considered the unofficial leader of the group, which is further enhanced when he gets his spirit which marks him as a potential Hero.
* PlayingWithFire: Kenya's introduction involves him launching a flaming SwordBeam at Rimuru the moment he enters S-Class, and complaining that he missed. Rimuru is quick to note that he tends to just throw fire around, however, and that his flames aren't anywhere in the ballpark to Shizue's.
* PuppyLove: It's heavily implied that Kenya has a crush on Alice, though [[LovingBully he only knows how to express himself by challenging her to fights]].
* SpikyHair: He has spiky orange hair, befitting his HotBlooded status.
[[/folder]]

[[folder:Ryota Sekiguchi]]
[[quoteright:150:https://static.tvtropes.org/pmwiki/pub/images/ryota_anime_3.png]]
-->'''Voiced by:''' Creator/ShizukaIshigami (Japanese), Creator/ApphiaYu (English)
One of the five Summoned Otherworlder children taught by Shizue Izawa.
----
* ArcherArchetype: His weapon of choice is a bow.
* TheBerserker: Ryouta Sekiguchi is usually quiet and timid, but his special ability sends him into an animalistic berserk state where he runs on all fours, clawing and biting at his opponents.
* MakingASplash: Ryouta after he receives training is able to use water magic as well, combining it with [[BlowYouAway wind magic]] for impressive combos.
[[/folder]]

[[folder:Gale Gibson]]
[[quoteright:150:https://static.tvtropes.org/pmwiki/pub/images/gale_anime.png]]
-->'''Voiced by:''' Gen Sato (Japanese), Creator/JustinBriner (English)

One of the five Summoned Otherworlder children taught by Shizue Izawa.
----
* BigBrotherInstinct: When Gale and the others visited the Dwelling of the Spirits, he asked Rimuru to take care of the other summoned chidlren if anything were to happen to him.
* BladeOnAStick: His prefered weapon of choice is a spear.
* DishingOutDirt: Gale is able to manipulate earth's structure and composition, allowing him to make it as hard as steel. It's noted it's actually [[MundaneUtility very useful for agricultural purposes]].
* HandBlast: Gale showed the ability to fire powerful magic bullets from his hands.
* LuckilyMyShieldWillProtectMe: He wields a shield, which he uses mainly to defend himself and his allies from attack.
* SummonMagic: After obtaining his Superior Spirit and training with it, he has shown the ability to summon a earth spirit named Beast Gnome.
[[/folder]]

[[folder:Alice Rondo]]
[[quoteright:150:https://static.tvtropes.org/pmwiki/pub/images/alice_anime.png]]
-->'''Voiced by:''' Creator/HarukaShiraishi (Japanese), Creator/SarahWiedenheft (English)

One of the five Summoned Otherworlder children taught by Shizue Izawa.
----
* GirlsLoveStuffedAnimals: Alice has trio of stuffed animals that she is shown to be fond of. She can also animate them via her powers.
* MarionetteMaster: Alice is able to levitate and manipulate dolls. Rimuru thinks to himself that she would be more effective if these dolls had claws, or if she could control other tougher stuff. After her training, that's exactly what she does by not only switching up for metal dolls armed with various weapons, but she can also suspend a number of swords in the air to launch as a Storm of Blades or control telekinetically.
* {{Ojou}}: While it is unknown if she comes from a wealthy family, she has all of the mannerisms and behavior of one. After she gets her training, she starts to insist she be called "Empress" by her fellow children.
* SpaceMaster: She can manipulate the Spacial element due to her spirit.
* SpoiledSweet: Despite her haughty demenour, she is shown to be quite kind and caring towards her friends and people who have earned her trust like Rimuru.
* StormOfBlades: After obtaining her Superior Spirit and training with it, she showed the ability to levitate and control a large number of small blades, which she can use to attack others at a distance.
[[/folder]]

[[folder:Chloe Aubert ('''MASSIVE UNMARKED SPOILERS''')]]
!!Chloe Aubert
!!!Hero Chronoa
[[quoteright:150:https://static.tvtropes.org/pmwiki/pub/images/chloe_anime.png]]

-->'''Voiced by:''' Creator/AzusaTadokoro (Japanese), Creator/EmilyNeves (English)

One of the five Summoned Otherworlder children taught by Shizue Izawa, Chloe at first seems to merely be a girl with notable talents even among them. In reality, she [[TimeTravelTenseTrouble was/is/will be]] a True Hero responsible for many notable feats in the backstory of the setting, all in her goal to save Rimuru Tempest from a horrible fate...
----
* AffectionateNickname: Her friends affectionately call her "Chlo".
* BewareTheNiceOnes: Crosses over with BewareTheQuietOnes as well. Chloe is usually a kind quiet girl who is slow to anger compared to Alice. When she actually does get angry, her friends are all in agreement she's the scariest of them, and she legitimately frightened Rimuru during their mock battle by how calmly ruthless she got about using the water-blade-prison spell as a threat if he didn't surrender. That's even all ''before'' she becomes the WorldsBestWarrior.
* ChildhoodFriend: Chloe is one for Leon Cromwell. Specifically, when they were both caught up in the Summoning, she ended getting caught in a time distortion that sent her to the future, leaving him desperate to try and find her.
* DeityOfHumanOrigin: Chloe's future self -- who travels back in time to stabilize her child-self -- is a Demigod, a divine entity surpassing both Heroes and Sages. Ramiris is terrified of her, though she does little more than kiss Rimuru and indwell her past self.
* FusionDance: Compared to the other Summoned Children, Chloe and her future self take this a step further when they fully fuse, allowing Chloe full access to her future self's powers and memories (up to the ability to assume her adult form) while also being influenced by her personality.
* FutureBadass: Both this and PrecursorHeroes as well due to some TimeyWimeyBall shenanigans. Chloe as she is in the present is a powerful fighter but still an inexperienced child with a lot to learn. Her adult self is so powerful she can challenge some of the strongest beings in the world and have a shot at winning.]
* IdenticalStranger: It's not directly commented upon, but Chloe has a ''lot'' of similar traits to Shizue, specifically longish black hair and blue eyes. It's heavily implied it was these shared traits that resulted in Shizue even being summoned in the first place, as Leon had been keying his summonings to specific triggers to try and summon Chloe specifically.
* MakingASplash: Chloe can control water to such a degree she can trap people in a sphere of swirling water and then form blades in said water to slice her victims apart.
* MasterSwordsman: All of the children get at least some swordsmanship training to varying degrees of proficiency, but Chloe is the standout. Her skills with the sword improve so much ''Hakurou and Hinata'' both believe she will surpass them with time. She's also able to deflect a surprise attack by Guy while in a sitting position after she's merged with Chronoa, and subsequently parry all of his probing slashes before Rimuru steps in between them.
* MyFutureSelfAndMe: Chloe is indwelled by the time-travelling divine spirit of her future self, which according to Ramiris creates a time loop. Specifically, "future" Chloe is a Manas called "Chronoa" that is the result of Chloe constantly trying (and failing) to save her loved ones through multiple time leaps and her personality becoming more warped and cold from all the trauma.
* PrecursorHeroes: As part of the TimeyWimeyBall she's stuck in, Chloe is part of a chain of heroes that goes Chloe --> Shizue --> Rimuru --> Chloe, making her a precursor to herself.
* RippleEffectProofMemory: Played with. Chloe doesn't start remembering her past journeys until she merges with her future self in the current loop, and even then she can only recall the last loop with good accuracy while past loops filter in and out. Hinata speculates this is similar to how even a normal human can't perfectly recall every past memory.
* SharingABody: Chloe takes it up a notch as not only does she host the spirit of her future self, but at one point she ends up hosting Hinata's spirit inside her during a 2000 year time jump to the past.
* StableTimeLoop: Chloe is part of a convoluted time loop, according to Ramiris. She's the Hero who sealed Veldora, who Leon was seeking to summon, and who Shizu admired and got her mask from in the past; having become a [[DeityOfHumanOrigin Demigod]] after countless time loops.
* TeacherStudentRomance: Chloe develops a PrecociousCrush on Rimuru, who laments that she should have [[JailbaitWait waited until they were 18 or 20 to confess]].
* TimeMaster: Chloe's true power, which originally manifests as the Unique Skill [Time Travel] (which is ExactlyWhatItSaysOnTheTin in a limited form) before evolving with Raphael's aid into the Ultimate Skill [Space-Time King Yog Sothoth], which allows her to control, stop, and travel through time at will. When she fully fuses with her future self, it evolves into [Space-Time God Yog Sothoth Hortz], which boosts this power to PhysicalGod tier levels.
* WalkingSpoiler: Chloe's role in the story is incredibly significant, to the point that discussing anything about her at length can lead into heavy spoiler territory.
* WorldsBestWarrior: Chloe [[TimeTravelTenseTrouble will eventually/has become]] this as the greatest Chosen Hero known throughout the world, possessing raw power to match a True Dragon combined with the swordsmanship honed from training under some of the greatest masters known in the world.
[[/folder]]

!Others
[[folder:Orc Disaster]]
!!Geld
!!!Orc King/Orc Lord/Orc Disaster
-> '''Voiced by:''' Creator/KenjiNomura (Japanese), Jim Foronda (English)

Formerly a nameless Orc King who wanted to save his people from famine, he was granted a name by the demon Gelmud under the orders of the Great Demon Lord Clayman. Obtaining the Unique skill Starved, he was meant to become a Demon Lord capable of conquering and ruling the Jura Forest as their pawn.
----
* AdaptiveAbility: As he's being burned by Rimuru's [[PlayingWithFire Flare Circle]], he develops the Heat Resistance skill to tank the rest of it.
* AlasPoorVillain: [[spoiler: His death is portrayed as such. Rimuru killing him was clearly a MercyKill, to which the Orc Lord thanked him for allowing him to rest in peace.]]
* AntiVillain: His people were starving, and he joined forces with Gelmud in order to save them.
* TheAssimilator: His Starved skill functions similarly to Rimuru's Predator skill in that they both provide the potential for infinite growth by devouring others and adding their powers and skills to their repertoire.
* AuthorityEqualsAsskicking: The leader of the Orcs and the strongest. While his soldiers were easily dispatched by Rimuru's subordinates, he was too strong for them, and Rimuru was forced to step up in order to deal with him.
* BenevolentBoss: Even after succumbing to hunger, he still loves his people. And while eating one of your own men for a power boost and healing would normally be a MoralEventHorizon, the orc in question willingly offered himself up and didn't struggle even as he was being devoured.
* DragonAscendant: [[spoiler:Technically, he's already the DragonInChief for Gelmud and by extension Clayman, but upon deciding to take Gelmud's order to evolve to the Orc Disaster to heart, he [[OffWithHisHead chops Gelmund's head off]] and eats the corpse to do it, becoming the main antagonistic force for the arc.]]
* DyingAsYourself: [[spoiler:His spirit passes on not in the form of the Orc Disaster, but the Orc King he once was.]]
* EvilIsBigger: He is nearly three times the size of a regular orc and about twice as big as his Orc Generals.
* {{Expy}}: Of [[Franchise/TheLegendOfZelda Ganon]]. Both of them are giant pig-man who became a warlord and demon king after they were driven to desperation watching their people suffer in a desert waste.
* TheGoodKing: To the orcs. He was willing to abuse his HealingFactor and tear off his own limbs in spite of the pain to provide them ''some'' sort of food.
* HealingFactor: Not only does he possess regeneration and healing magic, he can also devour others to quickly restore his stamina. It's so potent Hakurou [[OffWithHisHead slicing his head off]] just slows him down and Rimuru is forced to use Predator on him to win (and even then, he resists it longer than any other creature before him). Even when he was still nameless, he didn't think anything of tearing off his own limbs and letting his starving people eat them since they would just come back.
* IHaveComeTooFar: He tells this to Rimuru. After eating his benefactor, his own brethren and even several others, he feels that he cannot afford to lose.
* ImAHumanitarian: Since he can't absorb things like Rimuru, this is the only way Geld can actually use his Starved skill to the fullest. "Helping" is the fact it also gives him HorrorHunger so that he's not too picky about the act of eating anything in front of him.
* KickTheSonOfABitch: [[spoiler: Him killing and devouring Gelmud is not portrayed as horrifying to say at least.]]
* KnifeNut: Wields a [[{{BFS}} large machete as big as a man]]...but compared to his own size it's practically just a butcher knife.
* LargeAndInCharge: By far the largest of all the Orcs, even before his ascension to the Orc Disaster.
* PowerCopying: After [[spoiler:devouring Gelmud]], he gains the ability to use [[DeathFromAbove Death March]] [[BeamSpam Dance]].
* StrippedToTheBone: Predator strips him of all his flesh and leaves him a skeleton. ''He's still clinging to life'' even then [[spoiler:and only gives up in full with Rimuru's promise.]]
* SuperStrength: He can match Shion's strength with ease.
* TragicMonster: His underlying tragedy is that he's TheGoodKing driven to monsterous depths by evil benefactors, and he ''knows'' he's being manipulated but won't be able to save his starving people otherwise.
* UnwittingPawn: {{Subverted}}. He admits to Rimuru [[spoiler:as he's being absorbed]] that he knew Gelmund was all but certainly using from the start, but he viewed the situation as a DealWithTheDevil issue since to refuse would likely condemn his people to starvation.
* WakeUpCallBoss: The first opponent Rimuru fights who legitimately provides a challenge ([[PlayingWithFire Ifrit]] was only an issue due to Rimuru [[ForgotAboutHisPowers not remembering he had Heat Resistance]] and the risk of weaker bystanders), due to possessing powerful attacks that require dodging or intentional nullification instead of simply straight-up {{No Sell}}ing and possessing a ludicrous HealingFactor.
* WellIntentionedExtremist: All he wanted was to save his people from a famine, no matter the cost. Rimuru promising to save them is what allows him to [[FaceDeathWithDignity accept his death with grace]].
* TheWorfEffect: Despite taking a good amount of damage from their assault, he proves to be too strong for the oni and Ranga to best, showing the gap between them and a Orc Disaster. He then gets this at the hands of Rimuru, whose Predator Skill is superior to his Starved one.
* WorfHadTheFlu: While he did in fact evolve thanks to all the monsters he ate [[spoiler:including Gelmund]], Geld still didn't ''complete'' his evolution because he didn't devour any human souls to finish his awakening into a True Demon Lord.
[[/folder]]

[[folder:Charybdis]]
An ancient monster of immense power, known as the Ruler of the Skies. Sealed away by an ancient hero, it is unleashed with the intent of bringing calamity to Tempest.
----
* AnimalisticAbomination: It is a one-eyed vaguely shark-like monster -- with ray-like wings in the anime, defies gravity, possesses enough power to wipe out a country, and was born from a cloud of Veldora's magicules -- technically making it Rimuru's sibling.
* CameBackWrong: [[spoiler:The Charybdis born from Yamza being forced to swallow its core fragment is explicitly noted to be weaker than the original, to the point even with it assimilating every source of magicules nearby it could grab (including several fallen majin and the [[AnIcePerson Ice Blade]]), it would have self-destructed on its own within a day. Of course, it being born on the chaos of the battlefield makes destroying it a top priority regardless for the collateral damage.]]
* CurbStompCushion: It withstands everything Rimuru's army throws at it and even fights Rimuru himself to a stalemate, but is effortlessly defeated by Milim who considered the fact she didn't kill Phobio in the process to be a sign of her ''restraint''.
* DegradedBoss: [[spoiler:Clayman's subordinate Yamza is forced to consume a fragment of its core after he's beaten by Albis and about to surrender, due to a post-hypnotic suggestion from his boss. It's weaker than the original, but still powerful, and it inherits Yamza's Doppelganger skill, which means that it can clone itself, and the [[AnIcePerson Ice Blade's power]]. Benimaru takes it down singlehandedly thanks to having TookALevelInBadass due to Rimuru's Harvest Festival.]]
* DemonicPossession: As a spiritual entity, it needs a host in order to manifest. Phobio is tricked into becoming its host by Tear and Footman.
* DragonAncestry: Indirectly, as it is an AnimalisticAbomination spawned from Veldora's magical energy.
* EnemySummoner: When summoned, it manifests a school of Megalodons -- flying shark-monsters -- using dragon corpses.
* FlechetteStorm: It can fire its denticles/scales as razor-sharp homing projectiles.
* GravityMaster: It can manipulate gravity to enable itself and its Megalodons to fly.
* HealingFactor: It possesses Ultra-Speed Regeneration, the highest level of self-healing, which allows it to shrug off and heal away any damage that doesn't utterly destroy it in one shot. Unfortunately for it, Milim possesses such capacity to incinerate it so badly it can't heal away the damage. [[spoiler:So did Benimaru thanks to [[TookALevelInBadass getting a badass upgrade]] following Rimuru's evolution, using his Black Flames to make short work of it (admittedly a weaker version) seconds after it was forcibly reborn.]]
* NoSell: Its special ability, Magic Jamming, makes it immune to magical attacks. Unfortunately for it, Milim's [[BeamSpam Drago-Buster]] isn't magic.
* RoaringRampageOfRevenge: Owing to its host being Phobio, it attacks Tempest looking to kill Milim.
* SealedEvilInACan: It was sealed away by a hero in the distant past, though Tear and Footman trick Phobio into unsealing it and becoming its vessel by saying it will give him the power to kill Milim.
* WorfHadTheFlu: [[spoiler:The Charbydis created from Yamza being forced to eat a core fragment is explicitly noted to be weaker than the original Charybdis, even if it possesses powers the original doesn't, and would have self-destructed on its own within a day. As such, Benimaru destroying it with one Hell's Flare, while impressive, still puts him well beneath the likes of Milim.]]
[[/folder]]

[[folder:Veldanava]]
!!!Stellar Dragon King

''The'' most powerful True Dragon and strongest being in all of the multiverse. Currently dead, but his legacy has left a profound impact across the world millenia after the fact, and there are those who would seek to use that power for their own ends.
----
* DragonsAreDivine: UpToEleven. While his other True Dragon siblings can be considered gods, Veldanava was {{God}} with a capital G.
* GodIsGood: In spite of his power, everyone who has something to say about Veldanava remembers him as a noble and generous soul.
* HappilyMarried: To [[InterspeciesRomance the human Lucia]], with whom he had his daughter Milim. He would happily gush about her to his siblings, and it was through these descriptions that Veldora would actually come to understand standards of human beauty.
* TheMaker: It was Veldanava who created the multiverse, the various dimensions, and the main world the story takes place on. He also established the Voice of the World, along with the evolution and Skill systems.
* MonsterProgenitor: When Veldanava abandoned his old dragon body to take a human form [[spoiler:after his existence became unstable due to the massive power loss from siring Milim]], its decaying form spawned the mortal Dragon race.
* ThePowerOfCreation: Creation Lord Ahura Mazda allowed Veldanava to create anything of his choosing as long as he had the sufficient knowledge and power to do so. [[spoiler:This made Information King AkashicRecords a ''very'' useful RequiredSecondaryPowers]]. Notably, this seemingly was never inherited by another being after his death unlike how Michael went to Rudra and Uriel to Rimuru, [[spoiler:until it's revealed Yuuki's Unique Skill Creator is in fact a degraded version of it.]]
* StarPower: He was called the Stellar/Star King for a reason. One of the powers he used to create the multiverse from nothingness was "Stardust".
* SuperpowerLottery: Oh, where to begin. First of all, he's a [[DragonsAreDivine True Dragon]], a creature akin to a force of nature or god able to destroy the world at bare minimum. He also had no less than three Ultimate Skills: [[TheArmiesOfHeaven Justice King Michael]], [[SpaceMaster Covenant King Uriel]], and [[ThePowerOfCreation Creation Lord Ahura Mazda]]. [[spoiler:And then there's Information King AkashicRecords, which gave Veldanava knowledge of everything in existence and supplemented his ability to ''create'' anything.]]
* WorldsStrongestMan: ''The'' most powerful being in the world hands down, possessing some of the most broken Skills alongside incredible and unmatched magical and physical might in the entire series. His sibling True Dragons together could barely compare to him, and he handed [[DemonLordsAndArchdevils Guy Crimson]] the greatest CurbStompBattle of his life to the point the prideful Primordial would only acknowledge him as his superior. And this was ''after'' he willingly gave up being both TheOmnipotent ''and'' TheOmniscient. It's telling he only died after he was BroughtDownToNormal due to willing sacrificing much of his power over millennia through various acts.
[[/folder]]

!Armed Nation of Dwargon

[[folder:Gazel]]
!!Gazel Dwargo
!!!Dwarven King
[[quoteright:220:https://static.tvtropes.org/pmwiki/pub/images/gazel.png]]
[[caption-width-right:220: The Hero King of the Dwarves]]
-> '''Voiced by''': Creator/TakayaHashi (Japanese), Randy Aguebor (English, S1), Bill Butts (English, S2)

A king and ruler of the Armed Nation of Dwargon, the main dwarven kingdom around.

* AuthorityEqualsAsskicking: The ruler of his nation and the strongest member of it.
* BadassBaritone: In the English dub, he's given a '''very''' deep voice by Randy E. Aguebor (which, by the way, is his ''normal'' speaking voice).
* BrutalHonesty: He gives Rimuru's heartfelt speech a whopping '''[[EpicFail zero points]]''' since he felt it was unbecoming of a king. While it stung, Rimuru was grateful Gazel was giving him genuine advice instead of pampering him.
* TheComicallySerious: He plays this role in ''The Slime Diaries'', dealing with everything seriously even in the face of the zaniest antics and the comedy deriving from this and his own subordinates' reactions. This includes wearing a Santa outfit sent to him by Rimuru in his throne room and asking his subordinates dead-serious how he looks.
* DisappointedInYou: Tells Vesta this after the exile of Rimuru, Kaijin and his brothers from the kingdom despite knowing of their innocence, having known from the beginning about even Kaijin's innocence in the failure of Vesta's [[{{Magitek}} Magisoldier]] Project. He spent years waiting and hoping that Vesta would come forth and admit the truth, but Vesta's refusal and the [[KangarooCourt sham trial]] brought his patience to an end.
* FlashStep: A skilled swordmaster, way quicker than anyone would expect from a dwarf. Justified, give that he was a student of [[OldMaster Hakurou]].
* JustBetweenYouAndMe: PlayedForDrama. While Gazel had to exile Kaijin due to him punching Vesta in retaliation for disrespecting Rimuru, he privately let Vesta knew that he was fully aware of everything that was going on.
* KillingIntent: Strong enough to paralyze opponents, despite not actually being violent by nature. Being able to focus his will to such extent seems to come with being a king.
* NotSoAboveItAll: When he does not have to be so formal, Gazel is remarkably willful and jovial, which leaves his ministers with headaches. His BrutalHonesty is most apparent when he lets his guard down, and he has no problems speaking his mind to others in private.
** After learning that Rimuru is Hakuro's student in swordsmanship, Gazel requested the right to train under him again, though his advisers had to stop him since a king traveling to another country for sword training was too willful and unlikely to win approval from his ministers.
** After the Heavenly Emperor Elmesia purchased a lodging house in Tempest, a jealous Gazel went to Dwargon to get enough money to purchase a villa in Tempest.
* OurDwarvesAreAllTheSame: Subverted similarly to Vesta — Gazel too could be easily mistaken for a human, being much taller and slimmer than an average dwarf.
* OhCrap: His reaction to Veldora walking into the meeting and introducing himself. It is one of the few things that causes him to visibly panic in the whole series.
* ReasonableAuthorityFigure: Although he's presented as a legitimate badass and an intimidating figure, he's also quite reasonable and able to see what's actually going on. He knows full well that he's presiding over a [[KangarooCourt sham trial]] over Kaijin, Rimuru and the others orchestrated by Vesta, and he implies that if Kaijin hadn't already decided to turn his talents over to Rimuru and rejoined the military, he would have dropped the charges completely. Instead, he changes the sentence from years of hard labor in the mines to exile, thus allowing Kaijin and his fellows to leave with Rimuru without issue.
* SenpaiKohai: As a more experienced king, he's more than happy to point out he's the senpai to Rimuru's kohai.
* SurpassedTheTeacher: When he meets Hakuro again, the latter states that he is pleased that Gazel had surpassed him as a swordsman.
* {{Telepathy}}: He has this thanks to his skills, which is how he knew about Vesta's deceptions and can even use it in combat, such as his SecretTestOfCharacter on Rimuru.

[[folder:Vesta]]
[[quoteright:200:https://static.tvtropes.org/pmwiki/pub/images/vesta.png]]
-> '''Voiced by''': Creator/KenjiroTsuda (Japanese), Creator/BrandonPotter (English)

Dwarven aristocrat and scientist who works as a Gazel's minister, which drives him into conflict with Kaijin. After embarrassing himself before his king and being exiled for that, he reconsider his ways and becomes Rimuru's chief scientific advisor.

* AristocratsAreEvil: Or at least excessfully {{pride}}ful and inconsiderate. [[HeelFaceTurn He gets better.]]
* TheAtoner: Becomes this after his banishment.
* BreakTheHaughty: He was nothing but arrogant and condescending, but after Gazel revealed that he knew everything he was doing and was disappointed that he refused to come clean, he became a sobbing mess. By the time Rimuru meets him again after Gazel drops him off in Tempest to work for him, he spent over an hour apologizing to him.
* DefeatMeansFriendship: After being outsmarted by Rimuru, he decides that it's better to work ''with'' him than against him.
* DrivenByEnvy: His jealousy of Kaijin for being a commoner who managed to become his superior is what lead him to antagonize the dwarf and pin the blame for his own failings on him.
* GentlemanAndAScholar: A high-ranked aristocrat with a passion ForScience, which makes him conflicted at times, though he gets better.
* HeelFaceTurn: After he is shamed by Rimuru and banished from the Dwarf king's court, he moves to Tempest and becomes a scientist and adviser to Rimuru.
* MadScientist: Has a heavy vibe before his HeelFaceTurn, fueled by his ambition and pressures of a government position. When he resolves his internal conflicts, he becomes a pretty standard GentlemanAndAScholar.
* MyGodWhatHaveIDone: When Gazel reveals that Rimuru was the creator of the extremely pure healing potion, and that his actions may very well have terminated what could have been a powerful alliance with the slime, Vesta is beside himself with regret.
* MyGreatestSecondChance: Considers his service as a researcher for Rimuru to be this, as the alliance between Tempest and Dwargon means any successes he has will benefit both nations, simultaneously atoning for his past misdeeds and continuing to serve king Dwargo's interests.
* OurDwarvesAreAllTheSame: Interestingly, he's actually pretty tall and slim compared to many other dwarves, to the point he could easily be mistaken for a human.
* TheRival: To Kaijin, which leads to his DrivenByEnvy StartOfDarkness.
* UndyingLoyalty: Say what you will of him, but never call him disloyal to Gazel. He accepted his exile ''because'' he realized his actions ended up making things difficult for his king.
* WellIntentionedExtremist: {{Jerkass}} aside, he ''does'' want to be a helpful minister to Gazel, and his realization that he allowed his own failings to ruin what could have been a powerful partnership with Rimuru [[MyGodWhatHaveIDone causes him to break down in tears]].

[[folder:Kaijin]]
[[quoteright:250:https://static.tvtropes.org/pmwiki/pub/images/kaijin_anime.png]]
-> '''Voiced by''': Creator/AtsushiOno (Japanese), Bruce Dubose (English)

A dwarven blacksmith that befriends Rimuru after helping cure some of his friends. He joins Rimuru after being exiled thanks to Vesta.

* BirdsOfAFeather: He and Kurobee become friends soon enough because of their shared passion for blacksmithing.
* TheBlacksmith: An incredibly skilled one at that, being charged with forging the weapons for the dwarven military.
* TheExile: Leaves Dwargon to join Tempest after being exiled.
* RetiredBadass: He was once the captain of one of the seven orders of holy knights in the kingdom, though he was forced to retire due to Vesta's actions.
* TheRival: To Vesta both in military and as an artisan. In fact, being passed over for promotion in favor of Kaijin was Vesta's StartOfDarkness.

[[folder:Kaido]]

The captain of the Dwarven Kingdom Guard, who briefly detained Rimuru and Gobta after an unfortunate incident outside the Kingdom's gate.

* IOweYouMyLife: More like "I owe you my friends lives". After Rimuru made a large amount of high-quality recovery medicine to help the survivors of monsters in the mines, whatever suspicions Kaido had about him were wiped away.
* NotWhatItLooksLike: He and other guardsmen rushed up to a commotion outside the gates and discovered a group of unconscious and panicking people centered around two monsters. This was because a large group of people had started harassing and attacking Rimuru and Gobta, and the former used an intimidation power to scare them off.
* ThePowerOfTrust: Accepting the above-mentioned recovery medicine from a pair of monsters (one of who had escaped both the bars he was behind ''and'' the barrel he'd been stuck in), was a leap of faith that made things better for everyone, in the end.
* ReasonableAuthorityFigure: Acknowledged that Rimuru's story about self-defense matched up with the witnesses' testimony, and seemed ready to give him the benefit of the doubt, even ''before'' Rimuru made a large amount of recovery medicine to help a number of injured dwarves.
* SpellMyNameWithAnS: Kaito, Katou

!The Kingdom of Blumund

A small kingdom located to the northwest of the Forest of Jura, that becomes the first human country to acknowledge Tempest as a nation.
----
* TheGoodKingdom: Despite being one of the weaker countries in the world, its citizens are shown to be good people as Blumund was the first human country to accept Tempest and some adventurers and knights from Blumund offered to fight alongside Tempest when Famulth invaded the latter.
* MicroMonarchy: Blumund is considered one of the smaller countries among the Western Nations, as they do not possess the wealth, influence or military might of larger countries such as Famulth or Ingracia.
* PragmaticHero: While they do develop a friendly and amicable relationship with Tempest, it was originally predicated on the fact that Tempest could easily destroy a country as small as Blumund and to take advantage of being allied with Tempest such as their military capabilities.
* TheSpymaster: Blumund is too small a nation to support a notable military or vast economic exports. Instead, they rely on being some of the foremost intelligence gatherers in the Western Nations.

[[folder:Fuze]]
[[quoteright:200:https://static.tvtropes.org/pmwiki/pub/images/fuse.png]]
[[caption-width-right:200: Guildmaster of Blumund]]
-> '''Voiced by''': Creator/KenNarita (Japanese), Creator/MikeMcFarland (English)

A regional Guildmaster for the kingdom, he's a local administrator of the powerful Adventurers' Guild, and a childhood friend of the nation's Prime Minister Baron Velyard, making him quite an influential person in the region. Befriends Rimuru rather fast, and is his frequent guest [[TheChessmaster and co-conspirator]].

* AuthorAvatar: Being named the same as the author's pen name, has raised a whole lot of suspicions.
* TheCavalryArrivesLate: When Falmuth launched the declaration of war on Tempest, Fuze gathered together as many soldiers from Blumund as he could and raced towards Tempest, already planning out a gureilla campaign and taking a roundabout, more difficult route to avoid running headfirst into the Falmuth military. [[spoiler:He's a bit put out to learn that Tempest (or rather mostly Rimuru) already defeated the Falmuth army and the major crisis is over, though he still stays as the fallout from this needs to be discussed among Tempest's allies.]]
* TheChessmaster: Is heads-deep in the politics between his kingdom, the Guild and the whole host of plots around Tempest's meteoric rise.
* ChildhoodFriends: With Velyard, which helps them both due to their high positions.
* DaChief: As Guild is often relied on to provide policing in urban areas, with some adventurers in effect becoming a career police officers, he's that as well.
* FaintInShock: Fuze faints after learning that Veldora is resurrected from Rimuru.
* ScrewTheRulesIHaveConnections: Despite technically being just the Blumund Guildmaster, his close connections with the Prime Minister and the king means he's got a lot more pull than one might expect. Although, he occasionally finds it more trouble than it's worth because they have a habit of relying on him for jobs ostenisbly above his paygrade, including being Blumund's unofficial ambassador to Tempest and dealing with Rimuru's [[SpannerInTheWorks game-changing actions]].

[[folder:Bulud von Blumund]]

The King of the nation of Blumund.

* TheGoodKing: He immediately agreed to an alliance with Tempest, and responded to Falmuth's sham of a PretextForWar by sending Fuse with an entire cavalry brigade.
* IGaveMyWord: He agreed to an alliance with Tempest to help when needed, and he didn't hesitate to send in the Cavalry (even if it ultimately was unneeded).
* ObfuscatingStupidity: On the surface, he pretends to be a well meaning but naive king, but as Rimuru noted, he is actually a rather ambitious and decisive man.
* ReasonableAuthorityFigure: His first interest is the well-being of his people, and then his allies. He was the one who decided to join Rimuru's cause before the slime even arrived, over the advice of his advisors, citing that the nation would not survive them as an enemy, and that the church would not consider them worth protecting.

[[folder:Baron Velyard]]
-> '''Voiced by''': Creator/ItaruYamamoto (Japanese), Creator/DavidWald (English)

Blumund's Prime Minister and a close friend of Fuze.

* BlueBlood: He's a baron, but that's actually far less impressive than it sounds because Blumund is so small the "nobility" are basically just feudal lords of villages. Velyard himself is actually a landless baron who lives in the capital, which is the only large city in the country.
* TheChessmaster: Is heads-deep in the politics between his kingdom, the Guild and the whole host of plots around Tempest's meteoric rise. He was the one who worked out the mutual agreements between Blumund and Tempest, and negotiated so that Blumund had the most benefits to its side of the deal. Rimuru wasn't angry since he got duped into it, but used this as a lesson for future negotiations.
* ChildhoodFriends: With Fuze, which helps them both due to their high positions.
* SleazyPolitician: {{Averted}}. He's scheming and willing to do underhanded things, but he's loyal to his country and those actions are in service of ensuring Blumund comes out on top, especially since Blumund can't afford to fight things out in wars either military or economical.

!! Cabal's Party
[[folder:General]]
* BigEater: They have a habit of excessively indulging in food, especially the delicious cuisine of Tempest.
* EmbarrassingNickname: Fuze nicknamed them the "Three Fools of Blumund" due to the fact that they ignore his orders to bring Rimuru directly to him and nearly revealed Rimuru's identity to the other members of the Blumund Adventures Guild.
* FighterMageThief: Cabal is the fighter, Ellen is the mage and Gido is the thief.
* SmallRoleBigImpact: They have several.
** If it wasn't for them opening the doors, Rimuru would still have been stuck in the cave.
** It was because they were sent on a scouting mission that Rimuru's developing village was able to start a good relationship with a neighboring human city, along with bringing Shizu to Rimuru.
** [[spoiler: It was because of them that Rimuru discovered he had a chance to revive his slaughtered citizens by becoming a Demon Lord. This also results in the Sorceror's Dynasty Sarion dispatching Elalude to Tempest to judge the situation since they, as elves, would be indirectly responsible for the birth of a new Demon Lord.]]
[[/folder]]

[[folder:Cabal]]
[[quoteright:200:https://static.tvtropes.org/pmwiki/pub/images/cabal.png]]
-> '''Voiced by''': Kengo Takanashi (Japanese), Creator/JustinCook (English)

An adventurer with the classification of "Fighter" under Fuze's command, he leads a small party of adventurers on journeys that more than not end up crossing paths with Rimuru.

* DeflectorShields: Can cast a barrier spell to protect himself and others. It comes in handy when it lessens the explosion of a Salamander from "fatal" to "badly wounding."
* HeroesPreferSwords: Carries a broadsword on his back.
* LeeroyJenkins: He seems to have a habit of causing the party trouble, such as when he aggravates a Giant Ants' nest.

[[folder:Gido]]
[[quoteright:180:https://static.tvtropes.org/pmwiki/pub/images/gido_7.png]]
-> '''Voiced by''': Ryuuichi Kijima (Japanese), Creator/BradHawkins (English)

An adventurer with the classification of "Thief" under Fuze's command, he serves as an exasperated voice of reason to his two companions.

* {{Invisibility}}: He knows a cloaking spell that can hide himself and his comrades.
* KnifeNut: Wields a knife in combat.
* OnlySaneMan: Often finds himself exasperated by Cabal and Ellen's antics.

[[folder:Ellen[=/=]Elyune]]
[[quoteright:150:https://static.tvtropes.org/pmwiki/pub/images/ellen_9.png]]
-> '''Voiced by''': Akane Kumada (Japanese), Creator/NatalieHoover (English)

An adventurer with the classification of "Mage" under Fuze's command, she serves as the moral center of sorts for her trio of comrades. She's actually an elf princess from Sarion, who became an adventurer to escape her stifling royal heritage.

* CallToAdventure: Why she became an adventurer. She wanted freedom away from being a noble.
* AnIcePerson: Can cast the spell Icicle Lance. Rimuru copies and improves it to make Icicle Shotgun.
* DatingWhatDaddyHates: What her father ''thinks'' she is doing with Rimuru. This ends after she hits some sense into him.
* HideYourOtherness: She uses magic to hide her elf ears.
* MagicStaff: A wooden staff tipped with a giant blue crystal ball, through which she casts her magic.
* ReallyRoyaltyReveal: She's actually Elyune, a noble from the Sorcerer's Dynasty Sarion and cousin to Empress Elumeshia Elure Sarion.

!Sorceror's Dynasty Sarion

[[folder:Elalude Grimwald]]
!!Archduke Elalude Grimwald
[[quoteright:300:https://static.tvtropes.org/pmwiki/pub/images/elaludeanime.png]]
[[caption-width-right:300:Archduke of Sarion]]
->'''Voiced by:''' Creator/KenjiHamada (Japanese)

An Archduke of the Sorceror's Dynasty Sarion, which is the main elven kingdom around, who is the uncle of Empress Elumeshia Elure Sarion and father of Elyune.

* AmazinglyEmbarrassingParents: Elyune definitely thinks so due to his overprotective and gushing nature over her, and others sympathize.
* ArtificialHuman: He's a real elf, no doubt about it, but for security's sake he transfers his conscious to a homunculus body when leaving Sarion's borders to lessen the risks of assassination or kidnapping, as he can always abandon the body if push comes to shove.
* BeleagueredAssistant: To the Heavenly Emperor Elmesia, whose willful personality leaves him dealing with a lot of difficulties.
* EyesAlwaysShut: His default expression, and they only open when he's being emotional.
* NumberTwo: He is stated to be second in authority only to the Heavenly Emperor.
* OverprotectiveDad: While it was in part a SecretTestOfCharacter, he really was serious about charging that [[spoiler:partially-faked]] [[PlayingWithFire Ultra Flame Ritual]] to launch at Rimuru on mere suspicion that he had done something unforward towards his daughter.
* ReasonableAuthorityFigure: He was put in charge of the delegation to Tempest not simply for his high rank, but because he's a trusted official in Sarion with good judgement and thus would make the right choice about whether or not to ally with Rimuru. He gives Rimuru several {{Armor Piercing Question}}s to gauge his intentions and observes his intended plans going forward before finally giving his approval and asking for official relations.

!Ingracia

[[folder:Kagurazaka Yuuki ('''Major Unmarked Spoilers''')]]
[[quoteright:190:https://static.tvtropes.org/pmwiki/pub/images/yuuki_anime.png]]
[[caption-width-right:190:Let's bring destruction to this world.]]
->'''Voiced by:''' Creator/NatsukiHanae (Japanese), Creator/CliffordChapin (English)

The head of the Adventurers' Guild and yet another Japanese person [[TrappedInAnotherWorld transferred into this world]]. He has some connection to Shizue and thus to Rimuru, and later becomes a major antagonist.

* AdaptationalPersonalityChange: Yuuki's major role is effectively the same in all versions of the story, but it's his personality and motivations that receive the biggest shifts, to the point that his original web novel version is ''much'' different from subsequent adaptations. Most specifically, in the web novel he's an OmnicidalManiac out to destroy the world [[ItAmusedMe out of boredom]], while in the light novel and beyond he wants to TakeOverTheWorld [[WellIntentionedExtremist because he truly believes he can establish a better world order]].
* AntiMagic: His Anti-Skill is an attribute that once activated will shut down ''all'' skills and magics on his targeted opponent once he makes physical contact. This includes any HealingFactor or even magical defenses, even if they come from Ultimate Skills. Combine this with his physical abilities and weapon skills, and Yuuki suddenly becomes a deadly MageKiller. It was how he prevented Kazaream from successfully possessing him after he was summoned. However, it won't work on weapons, and the effect will wear off on its own with time if he doesn't renew the effect.
* BigBad: In the Web Novel from the very start, having spent years scheming and making alliances (or just straight up mind-controlling pawns) to gather the necessary power to achieve his end goal to sadistically destroy or subjugate the world under himself.
* TheBigBadShuffle: In the Light Novel and subsequent adaptations, Yuuki while still being TheManBehindTheMan for many forces finds himself butting heads with other powers (Mariabell and Granbell Rosso, Rudra/Michael and Feldway) in order to achieve his dream of world domination, and ironically starts to slip into BigBadWannabe status as he finds himself being OutGambitted and mind-controlled himself by the latter pair.
* TheChessmaster: Yuuki was a genius from his kid years and excels in scheming and manipulations.
* DualWielding: He uses the more practical version of this by wielding a sword in one hand and a knife in the other, but he turns the conventions around in that he prefers using the ''sword'' to parry while going for a killing blow with the knife, [[PoisonedWeapons which carries a powerful poison that attacks the nervous system]].
* {{Greed}}: The embodiment of it thanks to his Ultimate Skill Greedy King Mammon. Specifically, it allows him to "steal" a person's mind (which [[MoreThanMindControl renders them loyal to him and his cause]]), their life (which can be used for EnergyAbsorption or even [[YourSoulIsMine soul stealing]]), or [[PowerParasite their Skills]] (though it only works if the victim is both weak in power and will, both of which he can achieve with the previous two effects). In fact, his "greed"/"desire" is so strong he resisted the brainwashing effects of the original owner of the Unique Skill [Greed] because he overpowered her own desires, and ultimately took the Unique Skill for himself to evolve into his Ultimate Skill.
* ItAmusedMe: From his earliest days he was bored to death with an ordinary life, and anything he does is entirely for his own amusement. In the web novel, he's the type of person who would have destroyed the world if it were within his power just because.
* OlderThanTheyLook: He's in his late twenties, but for some reason, his physical appearance has locked on his teenage form.
* {{Otaku}}: And a pretty hardcore at that. Rimuru was able to get on his good graces just by providing the latest issues of some popular {{manga}} series that he missed in this world.
* PopCulturedBadass: On account of having been a hardcore nerd in his past life, Yuuki is well-versed in numerous video-games and manga. He's also an extremely powerful Hero capable of wiping the floor with people who upset him.
* ThePowerOfCreation: His Unique Skill [Creator] allows him to manipulate a strange form of energy that can change form into whatever he needs for his current situation. It's what initially allowed him to create his [[AntiMagic Anti-Skill]], can [[PowerCopying analyze and copy Unique Skills used in his presence]], which he used to ultimately [[PowerParasite steal]] the Unique Skill [Greed] from Maribell Rosso after he killed her, and even forcibly evolved his own body permanently into a Saint. It's later revealed [Creator] is in fact the degraded version of Veldanava's Ultimate Skill [Creation King Ahura Mazda], which allows the user to make ''anything'' as long as they have sufficient knowledge and power to do so.
* {{Pride}}: Mentioned multiple times to be Yuuki's FatalFlaw. No matter how hopelessly outclassed he is or how awry his plans go, he always underestimates his opponents and acts cocky, assured of his inevitable victory or at least that [[ScrewThisImOutOfHere he can make a getaway to try again]] or talk/scheme his way out. In fairness, he manages that much fairly consistently, [[TooCleverByHalf but when he's wrong]]... This also extends to his subordinate, Kagali, who scoffs at the idea of Tempest repelling the Empire's army despite being a nation of superhumans led by an awakened Demon Lord.
* SuperPowerLottery:
** Information King AkashicRecords allows him to use almost every ability in the series.
** Primitive Magic reflects the user's will and produces the phenomena they want.
* TakeOverTheWorld: His main goal in all adaptations post the web novel, which reflects nicely in his [[{{Greed}} Ultimate Skill]].
* TeenGenius: Outwardly. He's really [[OlderThanTheyLook in his late twenties]].
* TerroristsWithoutACause: In the web novel, there's basically no reason for Yuuki adopting his outlook except some ''very'' vague FreudianExcuse and [[ItAmusedMe sheer boredom]].
* TooCleverByHalf: His biggest weakness. Yuuki is TheChessmaster and master of the XanatosGambit capable of spinning even bad events to his favor and bouncing back from horrible setbacks, but when he overplays his hand due to overconfidence, he and his friends pay ''big time'' for it.
** His final scheme with Granbell is this in a nutshell. While Yuuki is rightfully suspicous of Granbell's motives and wary of a double-cross, the prospect of getting his hands on the [[SealedBadassInACan ark containing Chronoa]], the True Hero that defeated Veldora, and possibly bringing her under his control is just too good to pass up for his goal to TakeOverTheWorld. In the end, he played right into Granbell's hands by releasing Chronoa from the ark (something not even Granbell could have done in a timely manner), which allowed her to go on a rampage and confirmed Yuuki's villainy to the public when before he had managed to [[DeceasedFallGuyGambit pin it all on Granbell's granddaughter Maribel and her apparent mind control]]. In fairness, Granbell [[ManipulativeBastard pulled the wool on everyone's eyes]] for his final scheme.
** His attempted coup against Rudra was doomed from the start since one of the closest of his inner circle, Damrada, was in fact an undercover Imperial Knight (No. 2 in the ranks, actually). Yuuki recgonizes Damrada's potential treachery, but is able to rationalize it by noting that Damrada has always been loyal to him and that Damrada explicitly states he does what he believes is necessary for the Empire (a coup at this stage of the war would actually result in much less bloodshed) and that he truly considers Yuuki a friend and vice-versa. Damrada ''does'' in fact fit all these things, [[MoreThanMindControl but is able to rationalize his betrayal all thanks to his Domination]]. The end result of giving Damrada the benefit of the doubt results in the coup failing, Kagali, Tear, and Footman being Dominated by Kondo, and Yuuki himself taking on Rudra and being Dominated directly.
** During the angel's assault on El Dorado to capture Leon, he reveals he's managed to break his Domination and was just doing PretendToBeBrainwashed during the five-month TimeSkip between the Empire War and now, waiting for a crucial moment to act so he and the Moderate Clown Troupe could make their escape. He rescues Laplace from certain death and frees Kagali (and by extension Tear and Footman) from direct Domination...but unfortunately for him, he realizes he played his card too early as Feldway reveals ''his'' backup plan and has a possessed Footman (hosting the spirit of Kagali's [[AbusiveParents father]]) stab him right through the chest InTheBack, which he only survives thanks to his Saint physiology.
* VillainousUnderdog: Rimuru actually surpasses Yuuki in power several times over the course of the story, forcing Yuuki to rely on planning, deception, and a bit of luck in order to stay in the game and gather the power to match him.
* VillainWithGoodPublicity: Early on, he went to great lengths to concoct a kind and reasonable persona doing a lot of good deeds to increase his influence. In actual fact, however, Yuuki's a twisted psychopath reveling in the destruction he brings in the web novel. Even in subsequent adaptations where he's more genuine, it doesn't change his manipulations.
* WalkingSpoiler: It's practically impossible to have any serious discussion about the man without giving away his status as the original BigBad of the plot.
* WellIntentionedExtremist: In the light novel and subsequent adaptations, Yuuki wants to TakeOverTheWorld because he believes he can create a more fair and just society by purging the corrupt. His foundation of the AdventureGuild was built in part to try and achieve that, and his various manipulations are his idea of DirtyBusiness to make it happen.

[[folder:Kagali ('''Major Unmarked Spoilers''')]]
!!Kagali/Kazaream
!!!Curse Lord
[[quoteright:155:https://static.tvtropes.org/pmwiki/pub/images/kagali_anime.png]]
->'''Voiced by:''' Creator/YuiIshikawa (Japanese)

Yuuki's elf secretary. There's much more to her than meets the eye.

* ArtificialHuman: "Kagali" is in fact the homunculus body of a female elf, occupied by Kazaream's spirit.
* BenevolentBoss: In contrast to [[BadBoss Clayman]], Kazaream had a much lighter and joking relationship with his closest subordinates in the Monster Clown Troupe, and as Kagali she still maintains it. She even got pissed off at Rimuru when she learned of Clayman's death at his hands.
* TheChessmaster: Kazaream's calling as a Demon Lord, and something his subordinate Clayman sought to emulate with his own rise to power. Her Unique Skill Planner is even built around it.
* {{Curse}}: These were Kazaream's specialities, which were used to bind powerful beings to his will such as Adalman.
* GenderBender: Not by choice, but Kazaream was originally male before his old body was destroyed and he spent over a century as a spirit desperate to get a body back (to the point he was willing to summon and steal a compatible Otherworlder's body such as Yuuki's) before he settled on a homunculus body that happened to be female. While grateful to actually have flesh and blood again, she does seem rather embarrassed enough by the circumstances that led to this point, while Laplace finds the contrast between forms hilarious. [[spoiler:Turns out to actually be zigzagged, as Kazaream was originally an elf princess turned deformed male by her sadistic father, with her current life as Kagali having a replicated body as close to her original true form as she could recall.]]
* InTheHood: Flashbacks show Kazaream wearing a full-bodied cloak with a hood in addition to his mask, which were meant to hide his twisted physical form.
* InvadingRefugees: Kazaream was a survivor of the elf kingdom in what is now known as Soma that foolishly killed Milim's pet dragon to try and control her only to be wiped out and used to fuel her Demon Lord ascension, and then was further ravaged by the revived Chaos Dragon. When the elven survivors scattered to the four winds, Kazaream led the dark elves to what would become the Puppet Nation of Jistav and built the fortified city of Amrita, intent on preserving what elven technology that he could. Unfortunately, his dream never came to pass.
* MalevolentMaskedMan: Kazaream always wore a mask because he was ashamed of his hideous features [[spoiler:especially since they were a cruel reminder of the feminine beauty he once had]]. The Moderate Clown Troupe wore masks in part to maintain solidarity with their master.
* TheReveal: She's actually Kazaream, a former True Demon Lord who is the ''true'' master of the Moderate Clown Troupe, and was seemingly slain by Leon Cromwell 200 years before the present-day. ''[[GenderBender He]]'' spent over a century as a bodiless spirit before summoning and attempting to possess Yuuki Kagurazaka and failing, ultimately deciding to serve the Otherworlder and taking over the homunculus body of a female elf to start an identity as "Kagali".
* ThirdLawOfGenderBending: As Kagali, the formerly male Demon Lord ended up adopting many feminine mannerisms, habits, quirks and speaking patterns, which did have the advantage of selling the deception but also left Kagali rather mortified after the fact especially once Laplace brought it up. [[spoiler:Later turns out this was subverted, as technically speaking she was ''always'' female, it's just that her "male" body resulted from her sadistic father forcibly turning her into a deformed male, so both before and after her rebirth she always had a female mindset, just hidden behind a masculine facade as a male.]]
* ATragedyOfImpulsiveness: [[spoiler:What ultimately led to his death by Leon's hands. When Leon declared himself a Demon Lord, Kazaream originally went to him to try and gain him as an ally. However, the sight of [[{{Bishonen}} Leon's]] [[DudeLooksLikeALady beauty]] reminded Kazaream of the beauty he himself once possessed as elven royalty and he attacked Leon in a fit of [[GreenEyedMonster jealous rage]].]]
* WalkingSpoiler: It's ''really'' hard to talk about Kagali without going into her history and relationships with several important characters, most notably that of Yuuki and Clayman.

!!Moderate Clown Troupe
[[folder:In General]]
The three clowns who act as enforcers for Clayman following their old master Kazaream dying.

* BewareTheSillyOnes: They act like a bunch of jokesters, [[spoiler:but each one is ''much'' stronger than Clayman himself, who did earn his Demon Lord seat if only as one of the weakest. Footman fights Geld post Rimuru's Harvest Festival evenly with little sign of fatigue, Tear runs circles around Phobio and would have killed him were it not for his HealingFactor, and Laplace straight-up kills Roy Valentine, a decoy Demon Lord as strong as Kazaream and stronger than Clayman, brutally and swiftly once he stops holding back.]]
* BumblingHenchmenDuo: Tear and Footman tend to fulfill this role, as they're almost always sent together on missions and provide comical exposition compared to Laplace often being trusted with being on his own with the "serious" missions. This has less to do with their fighting ability (as both are extremely dangerous) than the fact that individually they're a bit less smart and competent than Laplace, which is why they need a partner to watch out for them.
* EvenEvilHasLovedOnes: All of them are remorseless criminal monsters, but all of them greatly care for and cherish one another, and will consider slights against one of them or their former master to be slights against all of them.
* KungFuWizard: When it comes to fighting, all three have been seen mostly using a BareFistedMonk style involving punches, kicks, acrobatic dodging, and all other forms of directly throwing their weight around without any weapons, but they also compliment their physical attacks with decently strong spells.
* MonsterClown: All of them wears masks and outfits with a strong jester aesthetic, along with exhibiting goofy and joking personas, and all of them are unrepentant bastards who instigate plenty of death and destruction for their goals.
* ResurrectiveImmortality: Every member of the troupe is a person that was revived through a special magic to become beings called "deathmen", where no matter how badly damaged their bodies get, or even if they're destroyed, their souls will not dissipate like normally, allowing them to either [[GrandTheftMe possess another person's body]] or slip into an artifical body without worry of truly dying. That said, when up against someone capable of SoulEating or a SoulCuttingBlade, they are just as vulnerable as most people to being rendered DeaderThanDead.
* UndyingLoyalty: No matter what situation might arise that would put them in a position to bail on each other, they will never do so, and are willing to be tortured or killed, even rendered DeaderThanDead, rather than even betray one of their number. Their loyalty is especially strong to their [[spoiler:initially]] dead master, continuing to work towards fulfilling Kazaream's goals along with trying to revive him.

[[folder:Laplace]]
!!!Wonder Pierrot
[[quoteright:250:https://static.tvtropes.org/pmwiki/pub/images/laplace_anime.png]]
-> '''Voiced by:''' Creator/KazuyaNakai (Japanese), Creator/ChuckHuber (English)

A Majin who is the vice-president of the Moderate Clown Troupe and affiliated with Clayman.

* AffablyEvil: He's up to no good, but he has a strong sense of jokingness, camaraderie, and loyalty that's completely geniune.
* BewareTheSillyOnes: He's a complete jokester who prefers being laidback, but he's the strongest member of the Troupe after their leader [[spoiler:as in, only beneath Kazaream (and even that might not be true given what he does to Roy) and higher than ''Clayman'']]. He proves it by fighting and killing [[spoiler:Roy Valentine, Luminous' decoy Demon Lord who would be in a similar power tier to Kazaream himself.]] He's willingly to claim to his boss and fellows that [[WorfHadTheFlu he needed the best possible conditions]] to pull it off, [[spoiler:but the narration notes he's deliberately downplaying his own full skill-set.]]
* CombatClairvoyance: [[spoiler:His second and secret Unique Skill, Future Vision, allows him to see several seconds into the future, and thus let him plan his actions accordingly by testing whether or not his plan of attack or even his Deceiver skill will work on a foe. Combined with his refined combat skills, and it wouldn't be an exaggeration to say he really is more dangerous than his Demon Lord superior.]]
* DelayedReaction: It takes him a moment to register Clayman's assertion that Myulan was killed by Rimuru [[spoiler:(she actually wasn't)]], leading him to cutting off his original thought and dropping the ball he was toying with in shock.
* EveryoneHasStandards: He finds Clayman's intention to slaughter Yuurazania's evacuated non-combatant citizens to be going a bit extreme, not simply for moral reasons but because he's moving faster and more recklessly than he usually would.
* KnowWhenToFoldEm: He opts to run away with Gelmud when they are found and attacked by Treyni instead of fighting her because they would've been captured should Treyni call for backup.
* LaughingMad: [[spoiler:After he kills Roy, he makes his escape slaughtering the Church knights drawn to the commotion and laughing all the while, which is his way of getting through his grief at Clayman's death.]]
* MalevolentMaskedMan: He wears a [[MonsterClown smiling clown mask]] and, while AffablyEvil, is still willing to do very evil things to achieve his goals and that of his masters.
* MasterOfIllusion: His Unique Skill Deceiver combines equal sub-skills such as Deception, Infiltration, and Concealment, which he can use to deceive his opponents' senses. Not only does this work wonders for spying and recon, he can use it in the middle of combat to do things like FakingTheDead, [[FightingAShadow create an illusion his foes attack]] while the real him sets up an attack or runs away, or even change his opponents' perception of what weapon he's currently using (like thinking he's using a knife when it's actually a lance or bomb, or even hiding a knife when it looks like he's bare-handed).
* MySignificanceSenseIsTingling: Laplace can detect magic being used in his presence, which not only allows him to sense offensive attacks, but can also be used to detect teleporation spells.
* NeckLift: Pulls one of these on [[TheBrute Vega]] when the man gets too big for his britches about how [[spoiler:he doesn't need to follow Yuuki anymore since Rudra has proven himself stronger.]] Particularly impressive since Vega is easily twice Laplace's size and far more muscled.
* NotSoHarmlessVillain: He jokes around and prefers running over fighting unnecessarily enough that it's easy both for people in-universe and out to underestimate him before he finally goes on the war path. He actually could have beaten Treyni during her confrontation with him and Gelmud, but retreated because she would have easily gotten more dryads to come in for backup. [[spoiler:He ran from Roy Valentine during their first fight and nearly did so for their second fight, new moon weakening Roy be damned, since Laplace had just finished running from a no-win scenario with Hinata, up until Roy revealed and made fun of Clayman's death. At which point Laplace proceeds to beat him with his fists, snatch out his core/heart, and [[AndShowItToYou crush it to pieces right in front of Roy's shocked and fearful eyes]].]]
* ReallyRoyaltyReveal: Volume 18 of the light novel reveals he's actually [[spoiler:the undead and amnesiac [[FounderOfTheKingdom Sarion Griswald]], former Emperor of the Sorcerous Dynasty of Sarion, brother of Elalude Grimwald, uncle of Ellen, and father of Elumeshia Elure Sarion. Kazaream raised him from his fatal injuries but his memories became clouded and lost as a result of the resurrection and conversion into a walking dead.]]
* ScrewThisImOutOfHere: His preferred method of dealing with conflict is to hightail it, but justified by the fact that most of the fights we see him run from are either fights he legitimately can't win, would cost him more in the long-run even if he was victorious, or simply [[WeWinBecauseYouDidnt where he didn't have to win to achieve his goal anyways]]. [[spoiler:When Roy makes the mistake of mocking Clayman's death during Round 2, Laplace stops running and shows why he's a NotSoHarmlessVillain.]]
* UnexplainedRecovery: {{Lampshaded}} by his own boss when Laplace recounts his encounter with Roy and how he was apparently blown apart by the vampire's Blood Ray, but is now standing there right as rain. It's because Roy killed [[FightingAShadow an illusion rather than the real Laplace]], allowing him to flee.

[[folder:Tear]]
!!!Teardrop Pierrot
[[quoteright:250:https://static.tvtropes.org/pmwiki/pub/images/tear_anime.png]]
-> '''Voiced by:''' Creator/KaedeHondo (Japanese), Creator/MonicaRial (English)

A Majin who is a member of the Moderate Clown Troupe.

* BewareTheSillyOnes: Despite her childishness, she's no slouch in a fight. She held her own against the Beastketeer Phobio and would have killed him were it not for his [[HealingFactor Ultraspeed Regeneration]].
* CuteAndPsycho: She acts like an excitable child most of the time, complete with calling Phobio a "dumb black cat" during their fight, but that doesn't detract from the fact she's not adverse to murder and manipulation if that's what she has to do.
* DanceBattler: She takes the acrobatic movment of the Troupe the furthest, constantly moving around and dodging attacks in a dance-like way, since her FragileSpeedster build means she needs to be agile enough to avoid getting hit.
* FragileSpeedster: She moves very fast, but she's not much for taking a hit. Still, she ran circles around Phobio, who prided himself on his speed, during their fight, and is skilled enough to leverage her weaker strength to hurt Phobio despite him being tougher than her.
* IronicName: Despite being called "Tear", she's actually quite energetic and go-lucky.
* PinkIsFeminine: She wears pink clothing alongside her magenta hair.
* YouGottaHaveBlueHair: She has noticeable magenta hair.

[[folder:Footman]]
!!!Angry Pierrot
[[quoteright:250:https://static.tvtropes.org/pmwiki/pub/images/footman_anime.png]]
-> '''Voiced by:''' Creator/ShinjiKawada (Japanese), Creator/SonnyStrait (English)

A Majin who is a member of the Moderate Clown Troupe.

* {{Acrofatic}}: He can move very fast for someone of his bulk, with his style including losts of spinning and jumping around.
* BarehandedBladeBlock: He pulls this off to catch Geld's cleaver during the orc's sneak attack and holds it in place even as Geld pushes on it, [[BewareTheSillyOnes which is the first real sign he's not just a bumbling fool]].
* BewareTheSillyOnes: He might not look so threatening at first, but he's very powerful. He could fight evenly with Geld and destroy his shield and armor while heavily injuring him, despite Geld at this point being even stronger than when he [[CurbStompBattle thrashed]] Shogou thanks to Rimuru's Harvest Festival.
* DumbMuscle: Self-admitted at that, preferring to use his brawn rather than brains and would rather leave the thinking to the others while he goes along with his orders. That said, he's still smarter than [[TheBrute Vega]] in that he can actually be trusted to ''follow'' the orders.
* HairTriggerTemper: True to his alias, while he can put up a joking manner he's rather quick to anger and lashing out even against his friends.
* RollingAttack: His {{Acrofatic}} skills are good enough that, with just a few seconds warmup, he can turn himself into a rapidly spinning ball to smash into, and potentially through, enemies at incredible speeds.
* StoutStrength: He's got the strength to match his bulk, being capable of going toe-to-toe with fellow StoutStrength Geld.

!Beast Country of Yuurazania

!! Three Beastketeers

The three strongest warriors under Demon Lord Carrion who serve as his subordinate rulers.

* AsskickingEqualsAuthority: They have their position by dint of being Carrion's strongest acknowledged subordinates.
* BloodKnight: All three of them love a good brawl, though Albis tends to keep a lid on it when she's not in battle and doesn't actively seek out combat unlike Phobio and Suphia.
* KlingonPromotion: To become a Beasketeer, you must be strong enough to defeat one.
* PowerTrio: The three are the most powerful beastmen in Yuurazania as well as Carrion's top subordinates.
* ShoutOut: A {{Pun}}-based one on the ''Literature/TheThreeMusketeers''.
* YouAreInCommandNow: [[spoiler:When Carrion is defeated and kidnapped by Milim and Frey, the three are left in charge of what's left of the kingdom and ally with Tempest in the mean time.]]

[[folder:Albis]]
!!!Golden Serpent/Snakehorn
[[quoteright:300:https://static.tvtropes.org/pmwiki/pub/images/albisanime.png]]
-> '''Voiced by:''' Creator/AiKakuma (Japanese), Creator/ElizabethMaxwell (English)

The leader of the Beastketeers, a Snake Lycanthrope.

* ActionGirl: Fully capable of handling herself in a fight. [[spoiler:During the war with Clayman, she fought and defeated the Middle Finger Yamza, the Commander-in-Chief of Clayman's forces, by herself and only needed helped from Gobta to deal with a sneak attack she likely could have handled and Benimaru when Yamza was forcibly transformed into Charbydis when he was about to surrender.]]
* GeniusBruiser: She's the leader not just for her strength, but because she's the thinker between [[BloodKnight Suphia]] and [[OverzealousUnderling Phobio]]. Of course, because she rarely gets a chance to actually fight and usually assumes a command position, most enemies assume she's the weakest when she's actually the strongest.
* HappilyMarried: [[spoiler:To Benimaru, and technically co-wife with Momiji.]]
* HardDrinkingPartyGirl: She doesn't drink by the bottle, she drinks by the ''barrel'' and holds it in her snake coils to tip it into her mouth.
* MagicStaff: She uses a staff to both channel her magic and fight in melee, often combining the two together.
* MagicalEye: Her Extra Skill [Snake Eyes] applies all manner of status ailments on foes within her vision such as paralysis, poison, insanity, petrification and others.
* {{Medusa}}: While her beast type is officially a SnakePerson, she also draws from Medusa through her MagicalEyes being able to petrify, paralyze, and drive insane those she looks at.
* MulticoloredHair: Her hair is mostly black with some gold highlights.
* NumberTwo: She is considered the second-in-command of Yuurazania, as well as acting as the leader when Carrion went missing after his duel with Milim.
* OneWingedAngel: She has a second tier of her lamia form that gives her a more feral appearance, grows more scales along her body, enlargening her horns while giving her another one out of her forehead, forms markings under her eyes, and gives her a new wardrobe that hugs her body even more.
* ShockAndAwe: She uses purple lightning for offensive purposes, albeit in the more traditional bolts and shocks rather than Suphia's enhanced strikes. She also channels her special abilities through the lightning once she goes OneWingedAngel, resulting in bolts that petrify or melt the targets..
* SnakePerson: Her true beast form is a lamia, having her entire lower body turn into the long coiling body of a snake, though with the addition of becoming a HornedHumanoid.
* SnakesAreSexy: A beautiful buxom woman who can transform into a lamia form for combat.
* SpaceMaster: Her Unique Skill [Oppressor] combines the effects of Mind Acceleration, Spatial Control, and Spatial Motion, which means she can lock down enemy movement by preventing teleportation as well as freely teleporting herself and her close allies.
* UnderestimatingBadassery: She gets underestimated by Yamza, who thinks that her speciality is attacking from a ranged distance with magic, and he is caught off-guard when Albis demonstrates that she is a master CloseRangeCombatant as well.
* TheWorfEffect: Shortly after revealing her OneWingedAngel form and curbstomping Yamza, the leader of Clayman's Five Fingers who initially believed they were evenly matched, [[spoiler:her full power is unable to land the critical damage necessary to destroy the revived Charybdis, despite it being weaker than the original monster, as that would require at least a Demon Lord-level attack from someone like her own leader Carrion.]]

[[folder:Suphia]]
!!!White Tiger Claw
[[quoteright:200:https://static.tvtropes.org/pmwiki/pub/images/suphia_anime.png]]
-> '''Voiced by:''' Creator/YoTaichi (Japanese), Creator/TerriDoty (English)

A tiger Lycanthrope.

* BareFistedMonk: She fights with her bare hands [[ElementalPunch combined with electricity]].
* BloodKnight: She was looking for an excuse to pick a fight with someone from Tempest during the second diplomatic visit after Phobio's disasterous first contact, and all too eagerly fights Shion with gusto.
* FireForgedFriends: She develops a friendship with Shion after the two fought during the meeting of envoys.
* GreatWhiteFeline: Suphia is a white tiger-themed Beastman and is a warrior of high rank.
* HardDrinkingPartyGirl: Like Albis, she is shown to like drinking a lot.
* LittleBitBeastly: In her humanoid form, she still has her ears, tail, and fur on her limbs.
* NotQuiteFlight: She has access to a skill called "Airwalk" that allows her to effectively "run" on air.
* ShockAndAwe: Her main power, which she uses to augument her physical strikes.

[[folder:Phobio]]
!!!Black Leopard Fang
[[quoteright:350:https://static.tvtropes.org/pmwiki/pub/images/phobiomanga2.png]]
-> '''Voiced by:''' Creator/SeiichiroYamashita (Japanese), Creator/StephenFu (English)

A Leopard Lycanthrope who initially came to Tempest thinking he could annex it easily into Carrion's kingdom. An encounter with Milim put an end to that quickly.

* AllForNothing: Becomes Charybdis's host in exchange for enough power to defeat Milim... and is still no match for her.
* DemonicPossession: He's tricked into being possessed by [[DraconicAbomination Charbydis]] by Clayman's people so he can try and get revenge on Milim for his embarrassing defeat.
* EldritchTransformation: Being used as a host by Charbydis transforms his body into a shark-like DraconicAbomination.
* HealingFactor: Even after being separated from Charbydis, being merged with its core gave him access to its Ultraspeed Regeneration.
* HumblePie: He accepts his after being possessed by Charbydis and ''still'' being easily defeated by Milim, whereupon he swallows his pride and thanks Rimuru for sparing his life and offering a nonaggression pact with his country as an apology for his previous behavior.
* IgnoredExpert: [[spoiler:When Milim attacks Yuurazania, Suphia is initially eager to fight but Phobio recounts his "battles" with her both in his normal form and as Charbydis, and notes all three Beastketeers fighting together wouldn't stand a chance. Despite this, Carrion still insists that he alone can beat her, only to learn firsthand that the power Milim showed off against Charbydis truly wasn't anything ''close'' to her being serious.]]
* OverzealousUnderling: Carrion did indeed tell him to go to Tempest. He did ''not'' tell him, however, to try and conquer it, but rather to scout it out.
* PlayingWithFire: He can light his extremities on fire to increase his striking power.

!!Other Beastmen

[[folder:Grucius]]
[[quoteright:230:https://static.tvtropes.org/pmwiki/pub/images/grucius_anime.png]]
-> '''Voiced by:''' Creator/SatoshiHino (Japanese), Creator/NazeehHTarsha (English)

A Wolf Beastman sent as part of the official delegation to Tempest. Initially serving as the carriage driver, he ends up becoming an official emissary and strikes up a friendship with Youm Farmenas.

* AintTooProudToBeg: After Myulan is revealed as responsible for placing the Anti-Magic Area that prevented Tempest from contacting Rimuru, Grucius pleads to Rimuru to show her mercy, stating that she couln't resist Clayman's hold over her.
* AmazonChaser: He becomes attracted to Myulan after she easily defeats him in a sparring match.
* FriendlyRivalry: He strikes up an InterspeciesFriendship with Youm Farmenas, with the two of them becoming sparring partners and rivals for the affection of Myulan.
* KnifeNut: He fights DualWielding daggers.
* NobleWolf: His alternate form is a wolf, and he's an honorable person who is fiercely loyal to his friends and lord.
* RomanticRunnerUp: To Youm for Myulan's affections. Grucius isn't ''too'' broken up since Youm's still his best friend, and jokes that since Youm is just a human and Myulan is a Majin, he just has to wait until Youm has passed away from old age to comfort the grieving widow.
* UndyingLoyalty: While he deeply values his friendship with Youm, he makes it clear to Youm that he wouldn't hesitate to kill him if Carrion ordered him to so.
* WorthyOpponent: He acknowledged Youm after their brief duel, stating that there aren't many humans who can fight against his equally.
* VitriolicBestBuds: His friendship with Youm consists of them snarking at each other and trying to one-up each other when competing for Myulan's affections.

[[folder:Phos]]
[[quoteright:230:https://static.tvtropes.org/pmwiki/pub/images/phos_3.png]]
A Fox Beastman sent by Carrion to covertly investigate Tempest after he made an alliance so that he can determine what kind of country it is.

* ActionGirl: As a member of the Beast Warrior's Alliance, she's very skilled in combat.
* HeroOfAnotherStory: Is one of the main characters of the spin-off ''Trinity in Tempest''.
* LittleBitBeastly: She is a Fox Beastman and can utilize the ability to change her form into a a specialized combat form, which enhances her senses and abilities.
* StraightMan: Compared to Stella and Nemu, Phos seems to be the most levelheaded of among her friends.

!The Kingdom of Falmuth

[[folder:King Edmalis]]
[[quoteright:350:https://static.tvtropes.org/pmwiki/pub/images/edmalis.jpg]]
[[caption-width-right:350: [[TooDumbToLive You're showing such rudeness, Ruler of monsters. Kneel! I am King Edmalis; King of the mighty Kingdom of Falmuth. I am not someone you should...]] GHYAAA!!!]]
-> '''Voiced by:''' Hiroshi Yanaka (Japanese)

The first human king to foolishly and one-sidedly wage war on Tempest.

* AbdicateTheThrone: [[spoiler:He is forced to do this by Rimuru and Diablo's decree in order to eventually install Youm as the new king. Edmalis, wracked with guilt over the destruction and suffering he's caused his nation with his greed and pride, doesn't fight this demand.]]
* AdaptationalIntelligence: Played with. While Edmalis in the anime still makes every short-sighted, greedy, stupid mistake of his light novel and manga counterparts, he is at least not so suicidal as to openly demand a being that has single-handedly wiped out his entire army bow down to him. Still wasn't a smart move to try and demand war compensation for Falmuth's losses during the offer for negotiations, especially given he's both the aggressor ''and'' loser in the equation.
* AdaptationalKarma: While he [[AnArmAndALeg definitely]] wasn't [[BreakTheHaughty a case]] of KarmaHoudini in the light novel and manga for massacring the citizens of Tempest, his punishment of being chained up in a cell to ruminate on his hubris was more CruelMercy compared to [[BodyHorror the fate]] of Rayhiem and Razen. When the time came for his captive appearance in the anime, while the whole "cell visit" incident was glossed over with Rimuru never personally checking on him, it's shown there in a quick scene that he was given the same horrifying transformation as his two surviving subordinates.
* AnArmAndALeg: In the light novel and manga, Rimuru slices off his arm when he foolishly points at the very same guy who wiped out 20,000 of his troops single-handed and says "On your knees, monster! You are in the presence of King Edmalis of Falmuth!" Rimuru goes a bit further in the light novel by also slicing off one of his legs when the king annoys him even more with his arrogance. In the anime, Rimuru lops off his arm in response to Edmalis talking down to him and running his mouth.
* AwakeningTheSleepingGiant: Tempest was a prospering trade hub that happily shares its prosperity with its neighbors. King Edmalis's cowardly sneak attack using a flimsy PretextForWar makes the entire country and its king Rimuru ''permanently'' hostile to him, and alienates several other great powers, like the dwarf nation of Dwargon and the kingdom of Blumund, that have mutual defense pacts in place.
* BeardOfEvil: Full beard, greedy, cowardly, and wicked sot who attacked Tempest expecting an easy victory, riches, and land to exploit.
* BlatantLies: When Rimuru demands to hear the King's side of the story, King Falmuth tries to say the entire army are his personal body-guards, he was seeking peaceful relations, and the attack on Tempest was a "misunderstanding," with the criminals in his employ having duped him as well. Rimuru listens to the very end before stating that he has no shred of credibility and taking him as a P.O.W. so that his country pays ransom for his aggression.
* BreakTheHaughty: Makes tent at one of the four magic barrier crystals debuffing the "monsters" in Tempest expecting an easy victory and gloating how he's going to rake in the spoils. When his invading army is wiped out and all the barrier crystal stations are totally annihilated, he begins panicking and trying to sneak out the back of the tent, until everything goes quiet. He briefly recovers when Rimuru shows up, and he thinks he can browbeat the leader of Tempest due to the "NiceGuy" reputation Rimuru's built up, only to break down completely at losing an arm and Rimuru stating "if you think I'm a nice guy, [[GoodIsNotSoft you are sorely mistaken]]."
* DidntThinkThisThrough: His attack on Tempest not only made Rimuru break his ThouShallNotKill rule involving humans, but that it made him very angry to the point that in order to resurrect his fallen citizens, he has to kill 10,000 humans to do it. Rimuru kills '''20,000''' men under his employ, including Folgen, which is beyond the necessary requirements, including those who fell into DespairEventHorizon and were begging for their lives. And [[TranquilFury he doesn't say anything or raise his voice doing it]]. He also tried to talk him down despite what Rimuru just did seconds before, and he loses his left arm for his trouble. Really, had he decided to make actual peaceful solutions with Rimuru from the start instead of pissing him off, then the latter wouldn't even have to kill 20,000 of his soldiers to become a Demon Lord, and take him as a prisoner of war. He really had no idea how much he screwed the pooch by making Rimuru angry.
* DirtyCoward: Tries to flee the instant he realizes he's on the losing end of the fight with Tempest, leaving all his allies behind. He doesn't get anywhere.
* FatalFlaw: {{Greed}} and {{Pride}}. Edmalis is proud not simply as befitting his status of nobility, but also because he's the king of one of the strongest Western nations in both military and economic might. As Gazel notes to Rimuru, however, he's far too greedy for his own good and with Tempest as a rising powerhouse threatening Falmuth's monopoly on the market, he's easily swayed by besmirched pride and his desire to add to his wealth to launch the ill-fated war against Tempest. These actions ultimately lead to the dissolvement of Falmuth as an independent political entity and securing Tempest's place as the new economic powerhouse of the west.
* HopeSpot: Repeatedly. In the dungeons under Tempest, as he's surrounded by the BodyHorror that was his advisers who recommended the ill-advised attack on Tempest, he repeatedly shouts that he's the king of Falmuth and begs for aid. Two of Tempest's citizens visit him while his remaining arm is chained to the wall.
** He is first met by Shion. She greets him politely, tells him he's not going to be killed, tells him she forgives him for her death at the hands of his troops, and tells him that Rimuru likes humans, of which he is one. Then she reveals that she will never forgive that his attack forced Rimuru to kill humans by the legion, and beats the ever loving shit out of him, stating that even if she had permission to kill him, shredding him to pieces 10,000 times would not be enough to end her rampage.
** He is later visited by Rimuru, not wearing his mask. King Edmalis mistakes the androgynous Rimuru for a servant girl and tries to bribe his way out. Rimuru asks him if he's forgotten his voice and slaps the mask on, then advises the king that freedom is not forthcoming, and that the burden for the attack on Tempest will be something he'll have to live with the rest of his life, leaving King Edmalis to wallow in his despair and terror. And then Shion [[BodyHorror works her ability on him]].
* ImplausibleDeniability: Tries to claim he knew nothing about the aggression of his troops and cowardly sneak attack of his Black Ops team. Rimuru didn't buy a word of it.
* MyGodWhatHaveIDone: After the disasterous Falmuth campaign, being imprisoned in Tempest and suffering for his actions and pride, and witnessing Tempest's prosperity and peace first-hand, Edmalis is so wracked with guilt that he [[spoiler:willingly goes with Diablo's plans to turn Falmuth into a vassal state for Tempest while abdicating his throne, admitting truthfully to his advisors he was a fool and that all he can do now is try and prevent Falmuth from suffering further.]]
* PretextForWar: Which was a total farce, and he knows it. When Tempest's prosperity as a growing trade hub began threatening his monopoly, he, his corrupt nobles, and Bishop Rayhiem scheme to make it look like Tempest's citizens are attacking humans unprovoked, so he can ally with the Imperial Holy Church and not only eliminate the competition, but rake in all sorts of spoils. He comes to regret it when he finds himself in Tempest's dungeon, his advisors all wind up dead ''[[BodyHorror or worse]]'', and his nation winds up being ruled by Youm and Myulan as a vassal state to Tempest.
* StunnedSilence: After Rimuru chops his arm off in annoyance, he spends several beat panels wordlessly staring at the stump before he collapses to the ground in agony.
* TooDumbToLive: Due to his WrongAssumption, he commands a very pissed off Rimuru to kneel before him, even adding to not mess with him. The very same Rimuru who just slain over 20,000 of his soldiers in front of him. He ends up losing his arm for his effort. While this is toned down in the anime, Edmalis still has the stones to be disrespectful to Rimuru when he refuses to indulge in the king's lies, as well as attempting to negotiate anything less than complete and unconditional surrender while demanding war compensation (never mind that he was both the aggressor ''and'' the losing party in this whole affair). [[LampshadeHanging Rimuru even notes to himself]] that Edmalis must be some special kind of idiot, before blasting his arm off.
* VillainsWantMercy: Begged for his life the moment a pissed off Rimuru gives him the chance to speak.
* WrongAssumption: He presumed Rimuru, who had just slain over 20,000 of his soldiers, right in his face, would be a "soft, easy mark, lousy at diplomacy" based on out-dated intelligence reports. So he commands Rimuru to kneel, stating that he's someone Rimuru should not mess with. He loses an arm to Rimuru's wrath, just to show him how wrong he is.

[[folder:Bishop Rayhiem]]
[[quoteright:350:https://static.tvtropes.org/pmwiki/pub/images/reyien_3.jpg]]
[[caption-width-right:350:I swear upon the Western Church, he's the real deal! Please spare my life!!!]]
->'''Voiced by:''' Hayato Fujii (Japanese), Ben Phillips (English)

The cleric of the human supremacist church who spurred Edmalis's war campaign.

* AssholeVictim: Given just how much of a complete scumbag he was, not a single hint of concern or care is given to him being [[BodyHorror transformed into a horrifying mass of flesh]] by Shion. The story doesn't even bother lingering on it, only leaving it as a passing footnote. [[spoiler:Even his rather pathetic and even pitiable death at the hands of the Seven Luminaries once [[YouHaveOutlivedYourUsefulness they finish using him to set up Hinata v. Rimuru Round 2]] after a round of torture and interrogation isn't treated with much real concern by anyone aside from ironically Diablo (who was more concerned by how a useful pawn had been killed and more importantly was being used to try and scrapegoat ''him'').]]
* AintTooProudToBeg: Shamelessly begged for his life to a pissed off Rimuru. He lost what little respect Rimuru had for him as a result.
* BaldOfEvil: Not a single hair on his head, and a coward who spurred the kingdom of Falmuth into a genocidal attack on Tempest.
* BarrierWarrior: He's the one who initiates the activation of the Holy Field meant to weaken monsters on Tempest and brought the Church knights who would maintain the barrier.
* BodyHorror: While he survives a bit longer than Razen, he's eventually forced through the same experience of being turned into a horrifying mass of still-living flesh, bones, and organs thanks to Shion. Diablo only restores him [[spoiler:to use him as part of the plan to peacefully transfer power in Falmuth to Youm.]]
* DirtyCoward: The moment Tempest retaliated, he and King Edmalis cowered in the king's tent, planning to flee, abandoning their troops and allies.
* ItsAllAboutMe: The only life he cares about is his own, even willing to offer up King Edmalis to spare himself.
* SmallRoleBigImpact:
** He has no real part in the overall conflict between Falmuth and Tempest beyond arranging for Hinata and the rest of the Imperial Holy Church to get involved, and he also has the smallest number of story scenes, but the very fact that he used the words of the Church to convince Edmalis into initiating the war using flimsy pretexts is what set everything in motion to enrage Rimuru into decimating the Falmuth kingdom and evolving into a True Demon Lord.
** [[spoiler:The Seven Luminaries using him as a disposable pawn to both set up Hinata's death and destabilize Diablo's efforts to successfully take control of Falmuth via manipulating Edmalis and installing Youm also ends up backfiring since Hinata is suspicous enough to not rush in blindly for Round 2 with Rimuru, while Diablo is enraged enough at the death of his pawn and attempt to pin it on himself (which puts his own position with Rimuru in jeopardy) to scheme even harder to get to the bottom of it all. This ends in the Seven Luminaries' revealing their manipulations and their deaths by the hands of Diablo, Luminous, and Cardinal Nikolaus, not to mention Diablo's plans for turning Falmuth into a vassal state reaching a conclusion much faster, Luminous meeting with Rimuru to discuss negotiations with the Holy Empire, and Hinata and Rimuru burying the hatchet.]]
* VillainsWantMercy: Facing off against a pissed Rimuru, and he doesn't hesitate to drop to his knees, bowing his head to the ground, begging for his life. [[spoiler:When Diablo restores him to normal from his BodyHorror state, he's all but seconds away from licking Diablo's boots while proclaiming his loyalty.]]
* YouHaveOutlivedYourUsefulness: [[spoiler:The Seven Luminaries kill him after intercepting him before he can reach Hinata with Rimuru's message and performing ManipulativeEditing on the message so they can send her and Rimuru on another collision course, and then torturing him before death so they can scrapegoat Diablo and unite the reeling Falmuth kingdom against the pro-Tempest side (Edmalis and Youm). Unfortunately for the Seven Luminaries, Diablo [[BerserkButton disagreed with their viewpoints.]]]]

[[folder:High Wizard Razen]]
[[quoteright:350:https://static.tvtropes.org/pmwiki/pub/images/razen.jpg]]
[[caption-width-right:350:Yes, this is a very valuable resource for the Falmuth kingdom, despite [[ItIsDehumanizing how it looks.]]]]
->'''Old Body Voiced by:''' Eiji Hanawa (Japanese)\\
'''New Body Voiced by:''' Creator/ChiakiKobayashi (Japanese), Creator/MattShipman (English)

The court wizard and strongest magic-user within the Falmuth Kingdom.

* AccidentalMisnaming: He gets it the worst of Shion's name butchering, as she wrote it down as ''"Ramen"'', which got Rimuru to nostagically muse that he hasn't enjoyed that dish in a long time.
* TheArchMage: He has mastered many powerful and varied spells and types of magic, including summons. It's noted by several people in the know that Razen is effectively at the pinnacle of what a human mage can achieve, to the point even the Beastketeers admit they always wanted to test their strength against his magic. The fact that Diablo can treat him like a complete ''joke'' not even worth mentioning as "strong" thus shows just how high Diablo's standards are.
* ArrogantKungFuGuy: In the anime, after [[spoiler:taking over Shogou's mind]], he claims to be the most powerful majin in the entire history of Falmuth. He even goes as far as claiming that he ''could likely defeat a Demon Lord''.
* AdaptationalNiceGuy: {{Downplayed}} in that [[spoiler:he still murders Shogou for his body]], but in the anime he at least has the decency to ''pretend'' he's helping him and makes the act too swift and painless for the man to fully comprehend before it's over. In the light novel and manga, he makes sure Shogou understands ''exactly'' what's happening and taunts him for it before finishing up.
* AssholeVictim: No tears were shed when the Demon later named "Diablo" beats the tar out of him as he foolishly resists being taken into custody. Even less of a damn was given [[ColdBloodedTorture for what happened to him]] [[BodyHorror at Shion's hands]].
* AtLeastIAdmitIt: When he's lecturing Shogou Taguchi at the guy's last moments, he admits that the kingdom of Falmuth, and the summoners who summoned and enslaved him, as well as Razen himself, are not good people, but Shogou is no good person either.
-->"Needless to say, we are not good people, but neither are you."
* BodyHorror: When he shows up again following his capture by Rimuru, Shion has subjected him to ColdBloodedTorture using her "Chef" skill, turning him into a writhing mass of flesh, bones and organs that is almost impossible to tell ever used to be a human being. [[AndIMustScream He's also still alive in this form, unable to utter a sound while his body twitches in agony.]] Diablo only restores him [[spoiler:to use him as part of the plan to peacefully transfer power in Falmuth to Youm.]]
* BoomHeadshot: How Rimuru tries to dispatch him. Razen survives [[spoiler:thanks to Shogou's body's HealingFactor]], which prompts Rimuru to summon Diablo to hunt him down.
* BreakTheHaughty: He was introduced as a powerful wizard who saves Shogou, only to [[spoiler:[[CavalryBetrayal betray him]] and destroy his soul so that [[GrandTheftMe he can possess his body]]]] while boasting he can take even a Demon Lord. He also has a DeadManSwitch in the event he gets killed to [[TakingYouWithMe kill any enemies near him]]. However, his very first encounter with Rimuru nearly went fatal while the latter was in the process of ''becoming'' a Demon Lord himself if Shogo's [Survivor] skill didn't save him, though this point Rimuru ''is'' technically already Demon Lord material and taking steps to become a ''True'' Demon Lord. But where he gets broken is his encounter with Diablo, and realizes who he is up against when the latter effortlessly blows away his nuclear magic spell, defeats his Spirit Golem, and makes Razen shit his pants when he fully realized who Rimuru summoned and passes out on the spot. For a man who claims he could defeat a Demon Lord, Diablo, who at this point is at best an EliteMook to Rimuru and not even ''near'' a True Demon Lord's level, shatters his pride just by existing. [[spoiler:By the time Diablo restores him from Shion's BodyHorror, the prideful man he was is all but gone as humbly swears himself to Diablo's service to save Falmuth from further destruction.]]
* CavalryBetrayal: He rescues Shogou from certain death at the end of Geld's blade, and the moment they're in relative safety, turns on him.
* CurbStompBattle: He suffers from this when he faces off against Diablo. The primal demon trivializes all his attacks so casually he didn't even need to land a single hit on Razen to defeat him. Razen simply faints from the overwhelming fear of realizing who Diablo is and how out-matched he actually is.
* DeadMansSwitch: Hakurou reveals that Razen's prepped a "nuclear strike" spell with his own death as the trigger, meant to be a deterrent against people killing him without getting killed themselves. That said, the magic in place only applies to when he ''dies''. So something like [[BodyHorror his fate at the hands of Shion]] makes it where he's incapacitated in a way that, [[FateWorseThanDeath technically]], doesn't kill him.
* FakingTheDead: He pretends that Rimuru's attack kills him, healing it and waiting for an opportunity to try and escape. This prompts Rimuru to summon demons to hunt him down.
* FamedInStory: He's known in the western nations as Falmuth's centuries-old champion, TheArchmage that's near the pinnacle of what a human can achieve. Gazel, Elalude, and even the Three Beastketeers acknowledge his power. The fact that Diablo [[OvershadowedByAwesome can treat him like a joke who had "some" skill in magic for a human]] is yet another clue to Rimuru that Diablo is ''far'' more than he appears.
* FatalFlaw: Arrogance. He presumes he's always better than everyone else in the room. When he tries to fight off a "Demon of the Primal Colors," he realizes this is wrong a bit too late, and suffers for it.
* GrandTheftMe: [[spoiler:He steals Shogou's body, after killing Shogou's soul, on-screen for a power-up of his own.]] This is not the first time he has done this over the centuries of his life and is the reason why he's an OldRetainer.
* GoMadFromTheRevelation: He dodged this, barely, when he was scrying the underworld for secrets. He learned of the seven colored primordial demons and escaped with his mind intact. Unfortuanately for him, he never intended to actually ''fight'' one of them, and his knowledge utlimately ended with him passing out in fear when he realized that Diablo was one of them.
* KickTheSonOfABitch: Using a magic spell to destroy [[spoiler:Shogou's soul to then steal his body gave the latter a KarmicDeath.]]
* KnowWhenToFoldEm: He's usually well-versed as to when he's outmatched in combat, and when this happens, he always prioritizes his escape, but never, ever surrenders. The last part does eventually catch up to him when he tries to sneak away, fails, and then attempts to resist being taken into custody.
* KungFuWizard: Quite literally after [[spoiler:he steals Shogou's body]], combining his knowledge and mastery of magic with [[spoiler:Shogou's physical strength, durability, and HealingFactor.]]
* OhCrap: Once he comes to blows with Diablo, he shits his pants in terror over who he was dealing with, and passes out on the spot.
* OldRetainer: He has served Falmuth and its royal family for a ''long'' time at over ''centuries'', something he prides himself over.
* SignatureLaugh: He has a loud and grating "ka-ka-ka" EvilLaugh that he lets out when acting smugly confident about his strength.
* SoLongSuckers: If he has to withdraw publicly, he makes a show of it. This is justified by the fact that anyone foolish or naive enough to attempt pursuit is usually going to run face-first into a booby-trap.
* TacticalRockPaperScissors: Invokes one by summoning a superior Earth Spirit to fight against Diablo. Diablo acknowledges the brilliance of this action[[note]]Diablo briefly explains that demons are strong against angels, angels are strong against spirits, and spirits are strong against demons[[/note]], [[ScissorsCutsRock then proceeds to instantly defeat the summoned Spirit by]] [[AttackItsWeakPoint hitting its core]]. Diablo then berates Razen for summoning such a young inexperienced Spirit and states that a creature that only relies on brute strength is no match for him.
* UndyingLoyalty: To his king and to Falmuth. Even after losing to Rimuru once and seeing his power firsthand, Razen still intended to save Edmalis from Rimuru's custody before Diablo came along to nip that in the bud. [[spoiler:He swears his loyalty to Diablo in part because he knows otherwise Falmuth would be destroyed.]]
* VillainousFriendship: With Folgen, due to the knight's loyalty to Farmus in spite of being a Summoned Otherworlder. Unlike the other three Otherworlders, he didn't magically enslave Folgen and saw him as a companion.
* VoicesAreNotMental: [[spoiler:After taking Shogou's body, he sounds just like the young man, albeit more refined in his speech. Folgen notes this and admits it's weird hearing him speak in such a way with that voice.]]

[[folder:Folgen]]
[[quoteright:241:https://static.tvtropes.org/pmwiki/pub/images/folgen.jpg]]
[[caption-width-right:241:Razen?! RAZEN!!]]
->'''Voiced by:''' Shunichi Maki (Japanese), Adam Rowe (English)

The captain of the guards for Falmuth and a loyal Otherworlder.

* AssholeVictim: In all his appearances, he shows himself to be such a massive scumbag, bringing about death and destruction purely because of what he can gain from it, that his [[DroppedABridgeOnHim sudden death]] by getting caught in Rimuru's Falmuth massacre can be considered too lenient and merciful a punishment for his monstrosity. In fact, just before his death he intended to gather together any surviving Falmuth knights and use them as {{Human Shield}}s to protect the king and the rest of the high circle (himself included) with his [Spearhead] skill as they fled, not intending to let any of them have a choice in the matter.
* BlingOfWar: Wears shiny metal armor.
* BoomHeadShot: On the wrong end when Rimuru is laying waste to the armies of Falmuth. One of Rimuru's beams of light pierces his brain, killing him instantly.
* CardCarryingVillain: Doesn't bother to hide how despicable he is. He even laments the deaths of Kyouya and Kirara, because they died in a way that kept him from stealing their skills.
* DroppedABridgeOnHim: Rirumu kills him before he can do anything. In the anime, he dies ''seconds'' after leaving the king's tent.
* EvenEvilHasStandards: He did at the very least look down on several of his men's [[RapeIsASpecialKindOfEvil open lust and desires for the various beautiful female monsters in Tempest]] and told them to get back to their duty.
* InformedAbility: According to Ifirit and Veldora's observations, Folgen is strong enough to be comparable to the former, meaning he's at least Special A Rank. The audience wouldn't know from how [[CurbStompBattle quickly]] he dies to Rimuru's attack.
* JumpedAtTheCall: When he was summoned by the magicians of Falmuth, he was overjoyed, and didn't need to be magically enslaved.
* MoreThanMindControl: One of his Unique skills is [Spearhead], which allows him to perform MindManipulation on anybody who willingly serves under him, enhancing their fervor into doing literally anything for him, even giving their lives acting as {{Human Shield}}s. Not that he gets a chance to use it before Rimuru kills him.
* NoBodyLeftBehind: Rimuru uses his corpse along with the rest of the slain Falmuth knights to summon Diablo and his two demon subordinates, which resulted in them all being devoured and used to contruct the demons' physical vessels.
* PowerParasite: He steals the special skills of any subordinate who dies before him, but there's a limit to how many skills he can steal this way.
* VillainousFriendship: With Razen, as despite being summoned by the mage he chose to willingly serve rather than need any magical enslavement, and ultimately they became friends.
* YouHaveOutlivedYourUsefulness: He's fond of killing his underlings when they're no longer useful, so he can steal their skills.

!! Falmuth's Otherworlders
A trio of souls summoned from another world like Rimuru, explicitly used as military assets for the kingdom.

[[folder:In General]]
* AssholeVictim: Despite their FreudianExcuse, their actions are so vile, nobody sheds a tear at their deaths, not even each other, aside from moments where the death of one inconveniences the others. Not even Falmuth cared about their deaths in particular [[spoiler:aside from the lost chance to transfer their Unique Skills to Folgen and Razen.]]
* FreudianExcuse: They are summoned without warning, or consent, enslaved by a magical curse, and forced to fight in an alien war with their lives on the line. This would grind on the sanity of anyone, but it's implied that they weren't good people to begin with.
* IgnorantOfTheirOwnIgnorance: They believe they are the strongest beings in the world despite never leaving Falmuth. While they are strong and a threat, they are nowhere near as powerful as they think they are.
* KidnappedByTheCall: They were summoned against their will and without warning to the world of the story. Both Shogou and Kirihara express hatred for being summoned to a "backwater" world without modern convinences, while Kyouya tries to look on the bright sides.
* KnightOfCerebus: Their appearance is the turning point for the series to get darker.
* LackOfEmpathy: They don't care about anyone else, not even each other, unless it suits their needs.
* OneManArmy: To their credit, they ''are'' legitimately powerful with their skills. Shogou and Mitsuni killed the entire individual teams of mages that summoned them (Shogou with his bare hands and Mitsuni with her CompellingVoice), while Tachinbana quickly became renowned as one of if not the best swordsmen in Falmuth. However, they vastly overestimate their abilities and it leads to their undoing.
* {{Sadist}}: They love seeing others suffer. If they're the ones suffering, on the other hand...
* SmugSnake: They love to flout their self-perceived superiority over others, but when they're on the losing end, they're quick to have a breakdown.
* TrappedInAnotherWorld: Like all the "wanderers," they can't go home.
* UnskilledButStrong: All three of them have very powerful skills, the only problem is they rely ''entirely'' on said skills. Two of them are beaten when they go up against opponents that have actually trained.
* UnwittingPawn: When they were summoned, and enslaved, they were told that the kingdom of Falmuth was in desperate need of defenders from evil monsters. It's not until much, much later that they learn different, but being enslaved by Falmuth, they have no other choice but to go along.
* WouldHurtAChild: Even children are not spared from their depravity.
* YouHaveOutlivedYourUsefulness: [[spoiler:What their ultimate fates would have been, being killed so their skills could be taken by [[PowerParasite Folgen]] and/or [[GrandTheftMe Razen]]. Shogou's just the only one who lived long to actually suffer this.]]

[[folder:Kyouya Tachibana]]
[[quoteright:200:https://static.tvtropes.org/pmwiki/pub/images/kyoya_anime.png]]
[[caption-width-right:200:Shut up, old man!]]
-> '''Voiced by''': Sho Nogami (Japanese), Creator/KylePhillips (English)
The swordsman of the three summoned black ops team.

* AbsurdlySharpBlade: His skill [Severer] produces invisible blades capable of cutting through just about anything thanks to being composed of the Space-element.
* ArrogantKungFuGuy: Thanks to his natural talent and his skills making him a MasterSwordsman, he quickly grew conceited and believed that he was superior to everyone else in the world and surpassed the likes of Hinata Sakaguchi. As a result, he doesn't take losing to Hakurou well ''at all''. Razen also calls out his arrogance after his death, stating that while Kyouya's Skills were indeed impressive, they were wasted on someone with little geniune skill or talent to use them to their fullest.
* BreakTheHaughty: When he's fighting Hakurou outside the magical debuff and anti-magic barriers placed on Tempest, he keeps getting smacked down by the sheer difference in power and skill between the two of them. He can't bring himself to believe that the only reason he had a shot previously is that he was being helped by the two barriers over Tempest, until his head is sent flying, and he slowly, oh-so-very-slowly, starts to die. And just to add a post-mortem insult to injury, Hakurou's next big fight is against the undead knight Albert, who at this point is a half-decayed swordsman who lacks any Unique Skill, unique equipment, or special advantage outside of pure skill and the immortality granted by his condition (which he didn't use as a crutch), in the very next arc, and Hakurou puts far more effort in just holding a ''draw'' than he ever did against Kyouya.
* CruelMercy: Self-inflicted. After being beheaded, his head takes three full minutes to die, but that's not the worst part. His own skill, [Hyper acceleration] is still active during this time, making him see and process information at 300 times normal. That means, from his perspective, he's experiencing the world as a severed head, ''for a minimum of 37 hours!'' If Kyouya had both of his mind accelerating skills active at their maximum output at the time of his beheading, he might have been experiencing his own death for 37,500 hours, which is 1562 days or ''over 4 years!''
* EyesAlwaysShut: When he's goofing around and admiring his own self of superiority, his eyes look shut, as seen in the page image. When he has to get serious, he opens them all the way and starts going full-tilt VillainousBreakdown.
* KarmicDeath: He's an arrogant MasterSwordsman who beat Hakurou (while he was weakened by two anti-magic barriers) and injured several civilians (including children) so that they'd die slow and painful deaths. During their rematch, Hakurou proves that he more than outclasses him under normal circumstances, and then beheads him while he was using a skill that accelerates his thought processes, forcing ''him'' to die slowly and painfully as a severed head.
* MaskOfSanity: He comes off as the calmer and smarter one of the trio, but once he starts fighting he's the most deranged and small-minded among all of them.
* MasterSwordsman: Even before he was summoned to this world he practiced fencing, and his skills were tailored to making him an even more dangerous swordsman to the point it was acknowledged he was the best in all of Falmuth. However, in spite of his growing ego, he's ''not'' the WorldsBestWarrior, as Hakurou demonstrates first-hand. Razen also mocks him post-death, claiming that Kyouya legitimately had powerful Skills and some talent, but they were wasted on a person who squandered his skill and talent to rely on said Skills like a crutch.
* ObliviousToHisOwnDescription: After beating Hakurou, he claims to Shogou that there's nothing more satisfying than cutting down someone filled with self-confidence. [[ArrogantKungFuGuy He]] finds himself on the receiving end of that during his rematch with Hakurou.
* OffWithHisHead: How he dies, oh-so-slowly.
* ShutUpKirk: As he's getting bested by the Kijin's best swordsman, and lectured on how he's in a clearly inferior position, he yells "shut up, old man" and then activates his [Hyper Acceleration] skill, hoping for a decisive blow in his favor. Unfortunately, there is a decisive blow alright, ''against him.''
* SuicidalOverconfidence: Despite Hakurou showing just how outclassed he really is under normal conditions, Kyouya refuses to accept that he's already lost and only grows more desperate to try and gain a nonexistent advantage to the point of ranting angrily as he keeps attacking. Even fellow ArrogantKungFuGuy Shogou was at least smart enough to realize when he was outmatched to try and run or beg for mercy.
* SuperReflexes: [Hyper Acceleration] allows him to perceive and react at over 300x normal speeds, such that to him most enemies seem to be standing still as he strikes them down while they're helpless. In a pinch, he can up the speed to 1000x normal. This ends up turning against him when Hakurou reveals ''he'' can [[SuperSpeed move so fast [Hyper Acceleration] needs time to catch up with his movements]], meaning that Kyouya can only stare in shock and horror as his head is severed from his shoulders and he can't do a thing about it but suffer.
* ThrowingYourSwordAlwaysWorks: He can fire his blade out of the sword hilt at a target and use the [[SpaceMaster spatial element]] to duplicate it into a StormOfBlades. Hakurou easily countering all of them without trouble is the first [[OhCrap break in his otherwise confident face]].
* UnknownRival: He goes off spouting about how his power is superior to Hinata. Not once does Hinata herself ever mention him, implying that she doesn't even know who he is.
* WouldHitAGirl: He's quite eager to cut up Shuna during the attack on Tempest and expressed his desire to do the same to Hinata.
* WoundThatWillNotHeal: By using the Spatial element, he can imbue the wounds he causes with it so that they won't heal naturally or with magic. Rimuru has to analyze and remove the magic affecting Hakurou's wounds from his first battle first before they can start healing them.

[[folder:Kirihara Mizutani]]
[[quoteright:200:https://static.tvtropes.org/pmwiki/pub/images/kirara_anime.png]]
[[caption-width-right:200:Oh, what took you so long. I was getting bored, yanno?!]]
-> '''Voiced by''': Hiyori Kono (Japanese), [=Meg McClain=] (English)

* AlasPoorVillain: In the anime, her last words were gasping out "Mom" just before Shogou gives her a NeckSnap. The other adaptations don't give her this luxury.
* BerserkButton: She's rather obsessed with maintaining her appearance, and views herself as a very alluring woman. As a consequence, anybody that insults her looks, such as Gobta calling her a "little girl" leagues below Shion in beauty, infuriates her immensely, to the point she dropped her FakeCutie act and tried to simply command everybody in Tempest to "die".
* CompellingVoice: With her Unique skill [Bewilder], she can use the power of her voice to buff allies or debuff enemies with certain orders. This includes ordering people to kill themselves.
* CripplingOverspecialization: Unlike Kyouya and Shogou, who have actual combat prowess to back up their Unique skills, all she has going for her is [Bewilder], with her otherwise being physically the same as any other teenaged human girl. Anybody that can outright ignore her CompellingVoice will find her quite defenseless if caught alone.
* EvenBadMenLoveTheirMamas: She's completely remorseless about all the deaths she has caused with her ability, but in the anime her last words before dying to Shogou shows that she still loved her mother enough to cry out for her.
* TheFakeCutie: This is her attempted method for inciting a "justified" war between Tempest and Falmuth, invoking a WoundedGazelleGambit by pretending to be an innocent human girl assaulted by Gobzo, making everybody else believe her lie with [Bewilder], and trying to incite Gobzo into attacking her. Her plan fails due to Gobta coming by and clearing things up, and him innocently insulting her looks makes her drop the act.
* IWantMyMommy: Her final words in the anime as Shogou kills her.
* LogicalWeakness: Her voice has to be heard to have an effect, so if there's a loud commotion going on, she's useless.
* NeckSnap: Her demise comes about through Shogou performing a NeckLift on her and squeezing harder and harder, strangling her until her neck gives out and makes a loud snap.
* PowerLimiter: Due to how dangerous her CompellingVoice is along with her open hatred for the people that summoned her, Razen put a magic limiter on her than prevents her from using it normally, only lifting it for her mission to Tempest.
* TooDumbToLive: While there's a battle going on just outside her tent, she completely lowers her guard and starts painting her fingernails, rather than preparing to run or hide. It gets her killed.
* WrongAssumption: She presumed that since Shogou was coming into her tent, he'd won his fight. The real reason he was there was trying to run and hide. She winds up being killed by him to boost his own strength and recover from injuries he got from fighting Geld.

[[folder:Shogou Taguchi]]
[[quoteright:200:https://static.tvtropes.org/pmwiki/pub/images/shogo_anime.png]]
[[caption-width-right:200: [[{{Hypocrite}} Pfft, people who have an advantage against me are cowards. When I have the clear advantage over others, that's their tough luck]]]]
-> '''Voiced by''': Creator/ChiakiKobayashi (Japanese), Creator/MattShipman (English)

* ArrogantKungFuGuy:
** Very, very arrogant. He presumes he can beat anyone in close-quarters combat, and those wearing armor or shields are cowards. He goes so far as to claim he's an equal of Hinata Sakaguchi, one of and leader of the Ten Great Saints of the Western Saints Church.
** In the anime he boasts himself to be invincible after gaining the [Survivor] skill. Geld proves him wrong the very second they resume fighting.
* BareFistedMonk: His main fighting style, which he already versed in even before summoning and helped along by his skill [Berserker] giving him boosted physical strength and defense. His bare fists can even punch through the solid metal of Geld's thick shield.
* BattleStrip: In the light novel, when he decides to get serious against Geld, he throws off his jacket. This proves a fundamentally bad idea.
* BeCarefulWhatYouWishFor: Attempts to goad Geld into dropping his battle gear to (fakely) invoke LetsFightLikeGentlemen with their fists. Geld after reaching the limits of his patience does indeed drop his weapon and decide to fight with his fists, so that he can give Shogou a drawn-out and painful NoHoldsBarredBeatdown.
* CameBackStrong: After barely surviving his fight with Geld (and killing Mitsuni to recover), he gains a new skill [Survivor], which gives him an enhanced HealingFactor. It's heavily implied it was influenced by his sheer terror at dying. Not that it does him much good against a pissed off Geld, who holds back considerably less.
* DeathOfPersonality: [[spoiler:His soul is destroyed by Razen who then [[GrandTheftMe takes his body for himself.]]]]
* DirtyCoward: He loves to lord it over others when he thinks he's in the superior position, but when he's in the inferior position, he's shameless in running, hiding, begging, or doing whatever he can to prolong his own life.
* GatheringSteam: One of the abilities [Berserker] gives him is that he gets stronger the more people that die around him, whether by his own hands or of others.
* HealingFactor: [Survivor] gives him both Elemental Resistances and Rapid Regeneration, with him boasting that he could get his head cut off and he would come back. Geld decides to give it a work out and starts beating him with his bare fists along with [[MakeThemRot rotting him with the [Corrosion] skill]], resulting in Shogou's boasting quickly turning to frantic begging to stop since he did ''not'' get [[FeelNoPain Pain Nullification]] as part of the package, and when Geld decides to "split his skull in half" to end it Shogou runs screaming. [[spoiler:Nor does it save him from soul damage, as proven when Razen destroys his soul.]]
* {{Hypocrite}}: In the manga, he calls Geld summoning a second shield "a dirty trick" when he attacked helpless demi-humans, including women and children, inside Tempest, as they were weakened by not one, but two barriers; a monster-weakening barrier, and an anti-magic barrier.
* ImAHumanitarian: It's completely omitted from both the manga and anime, but the light novel notes that the way he managed to acquire [Survivor] after killing Kirihara was through consuming her flesh in order to absorb her Otherworlder essence, showing just how far he's willing to sink morally for power. It's also why Geld got especially angry at him for his power-up, since it reminded him of his people's own desperation to survive that brought them to become ravenous savages under [Starved] who were willing to eat even their own friends and family.
* ImmortalityHurts: He clearly forgot about this trope after getting the [Survivor] Skill, thinking that it made him invincible. Geld proceeds to pummel him over and over, wondering how long he can hold out against the pain as his body constantly heals away any damage.
* JustJokingJustification: As Geld pauses briefly to catch his breath, Shogou pleads and begs that all his earlier insults, bluster, and despicable acts were just "a joke," empty bravado, and "he didn't mean it." This does absolutely nothing to sway Geld into sparing him.
* LetsFightLikeGentlemen: He calls out Geld for being in full battle gear when they square off, to which Geld retorts that his logic doesn't make sense. [[SubvertedTrope Of course, Shogou doesn't really want to fight fair]], and just wants to see if Geld can drop his gear.
* KarmicDeath: He murdered Kirihara for a quick power-up. [[spoiler:Razen murdered his ''soul'' to steal his body.]]
* KickTheSonOfABitch: He murders Kirihara Mitsuni for a power-up. While this is still a horrific act, she was an asshole who didn't pay any attention to his clear wounds and did many horrific things on-screen.
* PsychologicalProjection: Since he's a complete coward, he angrily accuses Geld of being a coward for wearing armor and having a shield.
* RequiredSecondaryPowers: Averted. He gains the skill [[HealingFactor [Survivor] that comes with instant regeneration]] after murdering Mitsuni and boasts about how he's become invincible because of this. However, since he doesn't get [[FeelNoPain [Pain Nullification],]] he still feels any damage done to him and becomes totally helpless as Geld gives his newfound power a workout by [[NoHoldsBarredBeatdown repeatedly pounding him into the ground]].
* RightForTheWrongReasons: He was right to be distrustful of Falmuth, knowing that he and the others were only pawns to be used. Unfortunately for him, [[spoiler:he didn't realize Falmuth intended to ultimately dispose of them in order to harvest their Skills.]]
* ShutUpKirk: While fighting Geld, he repeatedly yells "Shut up, Pig" as the latter was pointing out that this is a war, not a sporting event, and there's nothing "dirty" or "cowardly" about bringing your full might to bear on the enemy, or coming from an advantageous position against an enemy combatant.
* VillainsWantMercy: As Geld is pounding his face into mush, he repeatedly begs Geld to stop. Geld decides to grant mercy, alright, in the form of a MercyKill. Shogou runs away screaming in terror at the prospect.
* UnknownRival: Like Kyouya, he gloats how much stronger he is than Hinata. Again, Hinata never mentions him and is very clearly far stronger than he will ever hope to be.
* WouldHitAGirl: Not only does have no qualms attacking and even killing women, as shown with both Shion and Kirihara, he actually gets some notable sadistic glee out of targeting females specifically.
* WrongAssumption: When he starts pounding on Geld, with the latter doing nothing to retaliate, he presumes Geld's too overwhelmed by his sheer awesomeness to fight back. What's really going on is that Geld's using a [Corrosion] ability. He winds up looking at his limbs and realized he was basically punching a bag of formic acid.

!Holy Empire of Ruberios

[[folder:Hinata Sakaguchi]]
[[quoteright:350:https://static.tvtropes.org/pmwiki/pub/images/hinata_anime.png]]
[[caption-width-right:350:[[PrepareToDie I don't think we've meet before. Though I'll be saying goodbye soon.]]]]
-> '''Voiced by''': Creator/ManamiNumakura (Japanese), Creator/AlexisTipton (English)

Another Otherworlder from Japan, Shizue's first and most loyal disciple, leader of the Ten Great Saints, and supreme commander of both the Holy Empire's military and the Imperial Holy Church's paladins. Thanks to ''someone'' painting Rimuru in the worst possible light, she comes at the slime protagonist, seeking to kill him and destroy Tempest in revenge for Shizue's death. She refuses to let him speak, and pointedly does not listen to his explanation regarding the incident.

* AdaptationalPersonalityChange: She undergoes quite the change in personality between web novel and subsequent adaptations. In the web novel, she was something of a sociopath with a self-righteous mindset [[spoiler:plus being under MindControl]] that only mellowed out after more interactions with Rimuru and Tempest. In the light novel, while still capable of self-righteousness she's much more mellowed out and heroic [[spoiler:and not under any mind manipulation]] even before her proper HeelFaceTurn. Notably, [[spoiler:in the web novel she went straight to the Holy Empire's Seven Luminaries to request a weapon and the forces necessary to destroy Rimuru after learning he survived and became a True Demon Lord and was being mind-controlled in part by Yuuki's influence. In the light novel she reflected on her actions after the fact, realized she had been duped by false information and let her emotions get the better of her, and was willing to give Rimuru the benefit of the doubt before being given ''another'' source of false info courtesy of the Seven Luminaries (who were manipulating her to get her ''and'' Rimuru killed) that made it seem like he wanted a one-on-one duel. Even then, she was amazed enough at witnessing Tempest's prosperity that she truly wanted to apologize and try for peace before fighting.]]
* AntiMagic: Her body naturally dispels and purifies Magicules, meaning she has innate resistance to most magic aside from Holy, which doesn't rely on Magicules but rather faith, or certain Ultimate Skill effects, as long as they don't come from herself. [[spoiler:This also includes healing based magic or magic potions, meaning Rimuru can't heal her with his potions when she takes a fatal blow for him and is forced to outright create a replacement heart for her to extend her life long enough to get proper treatment from Luminous' Ultimate Skill.]]
* ArmorPiercingAttack: Her "Dead End Rainbow" sword is completely unblockable and tears through armor to strike directly at the soul. Notably, this is one of the few techniques legitimately and reliably capable of killing [[BlobMonster Rimuru]].
* AwesomeByAnalysis: Her [Mathematician] Unique Skill allows her speed up her thought processes, analyze the battlefield, and even predict attacks, to the point she can keep up with Great Sage and even Raphael. [[spoiler:Rimuru needs to outright develop a CombatClairvoyance skill of his own to keep up.]]
* DavidVersusGoliath: Her Unique Skill [Usurper] encourages these kinds of matchups with her on the weaker end by letting her steal skills from those who are stronger than her. It has a chance of failure, but she can use it as many times as she wishes until she succeeds. [[spoiler:However, it flat-out won't work against foes with Ultimate Skills due to their inherent immunity to lower tier skills as she learned first-hand when she used it on True Demon Lord Luminous, and its failure against Rimuru in their second bout is all the proof she needs to know he's definitely in Luminous' tier now.]]
* DefeatMeansFriendship: [[spoiler:Continuing the trend of how Rimuru makes friends and allies, Hinata joins his circle after her defeat. She even ends up falling in love with him after inadvertedly ending up on a 2000 year long time travel trip as a soul inside of Chloe's body and listening to the love-struck girl talk about him during that time.]]
* DissonantSerenity: As she's attacking Rimuru, she never once falters or changes her demeanor, regardless of what's going on, even when Rimuru uses "Gluttony" to eat her sword, go OneWingedAngel, and still attack her even though (she believes) his soul is dead.
* TheDragonslayer: In the light novel, she is given the "Dragon Buster" sword to fight Rimuru and Veldora by the Seven Luminaries. She finds the name a little on the nose, and flat-out drops the sword with no intent of using it when she prepares for her fight with Rimuru. [[spoiler:It was actually a booby-trapped weapon meant to explode at a critical moment during the fight between her and Rimuru.]]
* FantasticRacism: She utterly refuses to see "monsters" as anything other than targets to exterminate, [[spoiler:with her even viewing Luminous Valentine (for all her loyalty) as a NecessarilyEvil that she would exterminate if she ever deviated from her selfish benevolence towards humans.]] {{Justified}} by the fact that ever since she arrived in this world she was leading the charge in ''protecting'' humans from rampaging monsters and went so far as to reorganize the Church's military so they could better deal with attacks. She had never fought a monster that ''wasn't'' a threat trying to hurt someone. [[spoiler:She drops this behavior after seeing Tempest's glory with her own eyes and burying the hatchet with Rimuru.]]
* HeelFaceTurn: [[spoiler:After Rimuru defeats her in their second encounter, she calms down and listens to his side of the story, apologizing to him and his people and finally burying the hatchet.]]
* HolyHandGrenade: Her spell "Disintegration" is a massive light attack that destroys souls and can level a mountain if she didn't specifically contain it to a special barrier. She can focus it into a [[SwordBeam single sword slash]] called "Melt Slash" as her ultimate attack.
* HolyIsNotSafe: She wields plenty of holy magic spells and they're all insanely dangerous, with huge area of effect attacks, and can't differentiate friend from foe.
* IveComeTooFar: She briefly undergoes this after her first fight with Rimuru [[spoiler:and realizes upon returning to the Holy Empire that the merchants who gave her info had lied and manipulated her, but she decides that she's burned any bridges she could have forged with him and thus doesn't hesitate in their second fight when it comes down to it despite her growing doubts. Then it becomes subverted when she realizes just how far the conspiracy goes and goes the TakingTheBullet route, and Rimuru shows he could in fact forgive her.]]
* KnightTemplar: She is extremely judgemental and self-righteous, self-admitted at that. Justified as she was raised that way.
* LightIsGood: In the light novel and subsequent adaptations, she wields holy and light based magic, wears paladin gear, and is considered a foremost champion and hero of humanity who desires to safeguard them. She originally comes into conflict with Tempest and Rimuru thanks to misinformation and her own grudge, but proves in time to be a stalwart ally as well.
* LightIsNotGood: She wields holy and light based magic, wears white paladin gear, but in the web novel she's so self-righteous and judgemental that she's a menace.
* LockedOutOfTheLoop: She was purposefully given the sparsity of details to make it certain that Rimuru would be seen as a cruel monster in her eyes. When Rimuru tries to fill in the holes, she refuses to listen. [[spoiler:She realizes after the fact that she was likely manipulated and lied to and Rimuru really was trying to tell her the truth, but considers it a case of IveComeTooFar. She then tries to go Tempest to properly apologize, but the conspiracy of the Seven Luminaries ends up playing Hinata and Rimuru against each other again. Later when everything comes out, she willingly listens and is quite horrified to discover she was played like a fiddle.]]
* MagicKnight: She is equally skilled with the sword and holy attack magic.
* MasterSwordsman: She is so skilled with the blade that it makes Rimuru think he's fighting "Great Sage." During their second fight, Rimuru notes in a straight sword fight the only one who could match her would be Hakurou, and he would still ''lose'' in the end.
* MercyKill: She does this to an undead messenger Rimuru sends in the web novel.
* AMotherToHerMen: Played with. She does indeed care about the Knights under her command, but it's not out of true concern for their well-being. It's because they've been entrusted to her by [[spoiler:Luminous]] and thus should be cared for like one would care for a set of good weapons or tools.
* MyGodWhatHaveIDone: [[spoiler:After she finds out that Rimuru did not kill Shizu and learning the severity of what Falmuth has done to Tempest as she was trapping him.]]
* NamedWeapons: She wields plenty of them, such as "Dead-End Rainbow", "Drago Buster" and "Moonlight".
* NoNonsenseNemesis: She is completely and totally focused on her mission to destroy Rimuru, trapping him in a barrier that prevents him from using his more powerful skills, equipping herself with a sword-skill that can kill him, and refusing to listen to his reasoning. When she learns that not only did he survive their first duel but has also become a Demon Lord, her response is to arm herself to the bone with holy weapons and lead an army of powerful Templars to Tempest to finish the job.
* OneManArmy: She's one of the most powerful humans in the west, capable of challenging and defeating ''Demon Lords'' under the right conditions. In the light novels, Rimuru even outright states that Hinata alone is more dangerous ''than the entirety of the 20,000-strong army of the Kingdom of Falmuth''. She's also the leader and strongest of the Church's paladins, with even an average one said to be worth several hundred to a thousand men on their own.
* PowerParasite: Her Unique Skill [Usurper] allows her to steal and copy the Skills of her enemies, albeit only those who are stronger than her, and while it has a chance to fail she can reactivate it with little cost to herself as much as she wants until she succeeds. She can also use [Forced Usurption] to steal the power of those weaker than her, but that costs even more energy to use.
* RevengeBeforeReason: When she hears that Rimuru is responsible for Shizue's death, she devotes herself to destroying him and the entire nation of Tempest in revenge, and refuses to hear the specifics, stating "only the end result matters, the particulars are meaningless." [[spoiler:When she realizes she was manipulated in the light novel, she does regret her actions but believes [[IveComeTooFar she's burned any bridges she could have made with Rimuru]], but she comes around.]]
* RoyalRapier: Her ultimate weapon is Moonlight, a rapier given to her by [[spoiler:Luminous]]. It has the ability to pierce dimensional barriers and ignore defenses.
* SoulCuttingBlade: With the Dead-End Rainbow, she can use "rainbow magic" to destroy your soul if she manages to land seven consecutive sword strikes.
* SurpassedTheTeacher: She had surpassed the strength of Shizue within a ''month'' of her tutelage, as well as the Seven Luminaries of the Church. [[spoiler:But then subverted to even her shock when Granbell Rosso, the mightiest of the Seven and a former Chosen Hero himself, reveals both the depths of his millenia of skill and is able to rejuvenate himself to his prime]].
* TakingTheBullet:
** In the light novel, [[spoiler:when she realizes just how deep the conspiracy goes during her second battle with Rimuru, she ends up willingly shielding him from the exploding Dragon Buster sword given to her by the Seven Luminaries and is fatally injured, though ultimately saved by Luminous' Ultimate Skill.]]
** Later in the light novel, [[spoiler:she takes a fatal Melt Slash from Granbell to protect Chloe, which starts outright destroying her ''soul''. It takes Chloe undergoing a FusionDance and SharingABody with Hinata's soul into her own body to save her.]]
* TookALevelInIdealism: [[spoiler:Her time in Tempest and witnessing all the technological and societal progress gives her a new perspective on monsters.]]
* UnwittingPawn: [[spoiler:Yuuki, the merchants, and even the Seven Luminaries sure knew how to make use of her focus of avenging Shizue.]]
* WakeUpCallBoss: Hinata is the first True Demon Lord-tier enemy Rimuru fought, and the first enemy fought in a straight battle where Rimuru could not win. She's far more skilled, can counter everything that Rimuru could throw at her and has an attack that ignores Rimuru's defenses. All Rimuru could do is trick her into defeating a decoy and then hide until she left.
* WhenSheSmiles: Rimuru notices that when she actually legitimately smiles, she's incredibly beautiful.
* WorldsBestWarrior: Hinata is considered the greatest warrior of the Holy Church and on a comparable power tier to a True Demon Lord [[spoiler:as proven by Luminous' faith in her]] when using her best weapons and armor, having long ago surpassed the strength of the likes of Shizue and being able to kill unawakened Demon Lords [[spoiler:like when she mutually fatally injured Roy and Louis Valentine when she discovered their vampire identities before Luminous saved all of them.]]. Rimuru even admits during their second fight that despite his True Demon Lord ascension, Hinata far surpasses him in sword skill and technical ability and it's only his boosted physical abilities and various skills that compensate to give him the advantage. Short of [[spoiler:Chloe once she unlocks her full power, part of which ''comes from'' her FusionDance with Hinata, and Granbell Rosso (who had to rejuvenate himself to his prime in order to take the decisive edge)]], she's the strongest human of the western nations and only surpassed by specific individuals of the Eastern Empire.

[[folder:Louis Valentine]]
!!!Pope Emperor

The Pope Emperor of the Holy Empire of Ruberios who ostensibly leads the nation, he is in fact the figurehead for Demon Lord Luminous Valentine's rule and "twin brother" of her Demon Lord stand-in Roy Valentine.

* BloodKnight: Louis loves a good fight as much as Roy does, the difference being Louis has his bloodlust under much better control. [[spoiler:And far better than their original self Valentine did.]]
* BloodyMurder: Like Roy, his SignatureMove is Blood Ray, where he [[BloodMagic turns his blood into magical particules]] and fires them as beams at his targets.
* PuppetKing: Almost everyone in and out of Ruberios believes he is the leader, when he's actually just the figurehead for Luminous.
* SplitAtBirth: [[spoiler:Louis and Roy were once a single vampire named Valentine, but his sheer BloodKnight and sadistic attitude lead to his defeat and splitting by Luminous' Unique Skill into two separate individuals. When Roy dies fighting Laplace, that lost power returns to Louis, though thankfully with his calmer temperment still intact.]]
* TookALevelInBadass: He's roughly as strong as his brother Roy, who is strong enough to be considered equal to an unawakened Demon Lord like Carrion. [[spoiler:Absorbing his brother's power after his death by Laplace's hands effectively doubles his power and makes him Luminous' strongest vampire subordinate.]]

[[folder:Clerics of the Seven Luminaries]]
The highest consultants of the Western Saints Church and said to be the closest to the God Luminous, the Seven Luminaries hold the duty of training prospective Champions and Heroes for the Empire and Church and are in theory the ultimate authority in matters pertaining to the Church. They are Gran, Dina, Ars, Meris, Salun, Vina, and Zaus.

* AdaptationalSpeciesChange: In the web novel they were vampire servants of Luminous, but in the light novel they are instead LongLived human Sages granted extended lifespans and authority by Luminous.
* NoBodyLeftBehind: [[spoiler:The ultimate fate of everyone except Gran: three of them are vaporized by Luminous' [[OneHitKill Death Blessing]], three are sucked into Diablo's [[AndIMustScream World of Temptation]], and even Gran himself ends up getting his BodyDouble vaporized by Cardinal Nicholaus' [[HolyHandGrenade Disintegration]].]]
* ThereIsNoKillLikeOverkill: [[spoiler:Three of the Luminaries decide to wipe out Rimuru, Hinata, and all nearby monsters and paladins with [[HolyHandGrenade Disintegration]] cast ''in triplicate''. Were it not for Raphael using the data from absorbing Hinata's Melt Slash to perfect Covenant King Uriel's Absolute Defense against Holy attacks, it might have even worked.]]
* UriahGambit: They have a habit of doing this to perceived threats to their power and position. They set up Adalman and his comrades to die fighting a ZombieApocalypse over a thousand years ago [[spoiler:and [[LetsYouAndHimFight attempt to goad Hinata and Rimuru into Round 2]] in the hopes of getting one (preferably Hinata) or both of them killed.]]
* WeHardlyKnewYe: With the exception of Gran/Granbell Rosso, all of them are formally introduced and meet their ends within the span of Volume 7 of the light novel without much elaboration on their personalities aside from smugness.

!City of the Forgotten Dragon
!!Dragon Faithful
[[folder:In General]]
The loyal worshippers of Demon Lord and Dragon Princess Milim Nava.
----
* BadassPreacher: The hundred or so priests are the cream of the crop when it comes to fighting ability, as they're handpicked from the masses for their potential and their daily "prayer sessions" to Milim are actually battle training.
* DraconicHumanoid: Played with. Technically they're all [[OurDragonsAreDifferent Dragonewts]] who are [[DragonAncestry descendants of dragons who took human form and mated with humans]], but by the present day the dragon blood is so diluted that very few of them actually have the ability to assume a draconic form or even manifest draconic features.
* MagicalEye: Both Hermes and Middray have been shown possessing the skill [Dragon Glance], a lesser variant of Milim's [Dragon Eye], where instead of granting the ability to see through lies and perceive the true power of a person, those two simply have sight-based SuperSenses like being able to perfectly see things happening miles away and having InnateNightVision.
* UnevenHybrid: Due to their DragonAncestry, as a whole they have significant amounts of dragon blood running through their veins, which grants them the inherent power of dragons. But the ancestry has been so diluted through breeding with regular humans through the centuries that very few of them can even [[{{Weredragon}} turn into actual dragons]].
* WillfullyWeak: At first glance, they all look like a bunch of simple folk who rely on Milim for protection and possess no fighting skills. In reality, each and every one of them has the physical skills to make themselves a threat if need be.
[[/folder]]

[[folder:Middray]]
!!Father Middray
[[quoteright:250:https://static.tvtropes.org/pmwiki/pub/images/lw3qr7puwnf71.png]]
-> '''Voiced by:''' Creator/AtsushiImaruoka (Japanese)

The head priest of the Dragon Faithful.
----
* AuthorityEqualsAsskicking: As the head priest of an organization that is made up of {{Badass Preacher}}s, it's only fitting that he's the strongest one. He's actually a sparring partner for Milim herself, and easily overpowers Suphia before taking her and Gabiru on in a two-on-one.
* BaldOfAwesome: Completely smooth-headed, and a BadassPreacher extraordinary. Amusedly, when he's BurningWithAnger Hermes calls it a "watermelon".
* BeneathTheMask: While he usually expresses his anger [[BurningWithAnger freely and openly]], he can mask it when required, such as when Yamza insults him and Milim and smashes an apple on his head in an attempt to make him lash out so he can force the Dragon Faithful to march with Clayman's army. Middray keeps up a cool and pleasant demeanor despite the fact the audience (as well as Hermes and Yamza) can tell deep down he just wants to wrap his hands around Yamza's throat and throttle him.
* BloodKnight: He's a described "battle maniac" who loves a good tussle. He can only seethe in anger at how "weak" Clayman's army must be to get [[CurbStompBattle so utterly routed by Tempest and Yuurazania]], despite Hermes noting mass battles often aren't decided by strength alone but leadership. He expresses a mutual desire with Benimaru to test themselves against each other [[spoiler:after the oni destroys the revived Charybdis.]]
* BurningWithAnger: Whenever he gets particularly mad (which, given how passionate a man he is about serving Milim, [[HairTriggerTemper is quite often]]), his whole head turns red and veiny while he emits a fiery aura.
* CombatMedic: He knows healing magic, which is rather useful if he needs to take a moment to heal himself or an ally before he goes back to cracking skulls.
* EarlyBirdCameo: He makes a brief appearance in ''The Slime Diaries'' before his appearance in the main anime series.
* SelectiveObliviousness: He never noticed that Milim does not enjoy eating raw ingredients and insists that's the only way they should be prepared. He also is such a strong believer in Milim that anybody pointing out her actual faults enrages him, always rationalizing her BloodKnight tendencies and occasional idiotic actions as having some well-planned purpose.
[[/folder]]

[[folder:Hermes]]
!!Hermes
[[quoteright:250:https://static.tvtropes.org/pmwiki/pub/images/jabjtj6vwnf71.png]]
-> '''Voiced by:''' Creator/DaikiKobayashi (Japanese)

Middray's assistant and fellow priest.
----
* AnArmAndALeg: Gets his arm chopped off by Yamza due to the latter being a dick and trying to force the Dragon Faithful to march with Clayman's army. Middray reattaches it.
* BadassPreacher: Held his own and recovered from a fight with Gabiru quite well.
* EarlyBirdCameo: He makes a brief appearance in ''The Slime Diaries'' before his appearance in the main anime series.
* OnlySaneMan: The highest ranking priest who recognized that Milim hates eating the raw meals the Dragon Faithful give her for a long time thanks to his travels abroad, but all his attempts to get Middray to notice fall on deaf ears. He's also the only one who has enough of his head still on his shoulders to understand that sometimes Milim doesn't really put much thought into her actions beyond how much fun she can get, with most of her schemes and plans falling under the IndyPloy instead of her being TheChessmaster.
* ServileSnarker: He's Middray's assistant, but he's not afraid to snark at his superior. He's also quite willing to point out Milim's childish eccentricities, even in front of the [[SelectiveObliviousness willful ignorance]] of the super-faithful Middray.
[[/folder]]

[[folder:Stella]]
[[quoteright:300:https://static.tvtropes.org/pmwiki/pub/images/stella001.png]]

A member of the Dragon Faithful who traveled to Tempest to expand her knowledge of the culinary arts.
----
* ActionGirl: As one of the Dragon Faithful, she's very skilled in combat.
* DraconicHumanoid: She's one of the few Dragonewts of the Dragon Faithful who has the ability to manifest dragon traits, in her case wings, horns and tail.
* HeroOfAnotherStory: Is one of the main characters of the spin-off ''Trinity in Tempest''.
* SupremeChef: Her goal is to become this and be able to serve Milim fine dishes.
[[/folder]]

!Ice Continent
[[folder:Velzard]]
!!Velzard
!!!White Ice Dragon
[[quoteright:209:https://static.tvtropes.org/pmwiki/pub/images/velzard_anime_8.png]]

-> '''Voiced by''': Creator/YukaIguchi (Japanese)

One of the Four True Dragons and considered the strongest of the remaining three after Veldanava's death. Velzard is a being uninterested in most worldly matters, preferring to remain within the Palace of White Ice and keep the Ice Continent frozen over with her power. However, her status as Guy Crimson's acknowledged equal and partner means anyone foolish enough to challenge her will not live to realize their mistake.
----
* AntiMagic: [[spoiler:One of the effects of Leviathan is to "degrade"/weaken the effects of her opponent's Skills.]]
* BigSisterBully: Veldora definitely considers her one, and for good reason considering her idea of "disciplining" him for his violent outbursts involved ''killing him'' and waiting for his reincarnation to see if he learned his lesson.
* BrainwashedAndCrazy: [[spoiler:Due to Justice King Michael taking control of her through Gabriel, she fights on his side and attacks Guy, though Guy realizes there's at least some MoreThanMindControl at play.]]
* ClingyJealousGirl: Her first ever interaction with Guy involved her trying to ''kill him'' simply because she didn't like how her big brother Veldanava showed him so much attention, attention she believed would be better served pointed at her. She only calmed down after she saw how strong he was and decided he was worth that attention. [[spoiler:This is presumably the root of her obtaining [Envious King Leviathan].]]
* EndlessWinter: The "Ice Continent" exists because of her, as it's her aura that keeps it permanently frozen over from its original state.
* EnergyAbsorption: [[spoiler:One of the effects of Leviathan allows her to absorb her foe's energy to replenish her own.]]
* FireIceDuo: The "Ice" to her younger sister Velgrynd's "Fire".
* AnIcePerson: Thanks to her Ultimate Skill [Patience King Gabriel], she can "freeze" (stop the momentum of) anything, [[TimeStandsStill up to and including time itself]]. Her aura alone is enough to keep the entire Ice Continent frozen over at a temperature of -120 degrees Celsius.
* IcyBlueEyes: She has these in her human form, which help denote her ice powers.
* KillerRabbit: Notably, Velzard's preferred human form, unlike Velgrynd who is a MsFanservice [[spoiler:and Veldora who is a {{Hunk}}]], is that of a young teenaged girl. She can still utterly wreck house even like this, with this being the form she always fought her siblings in. [[spoiler:Averted when she assumes her [[OlderAlterEgo adult appearance]], which might be [[SexierAlterEgo even more fanservicey]] than Velgrynd.]]
* MysticalWhiteHair: She has this in her human form, which denotes both her mystical nature and raw power as [[DragonsAreDivine a True Dragon]].
* SemanticSuperpower: At its core, Gabriel's power is based on the concept of "deceleration" or "slowing down". This ability allows her to slow attacks to a crawl to easily avoid them, slow down molecules to force air into solid walls, slow the effects of erosion and degradation, create ice, and even [[TimeStandsStill suspend time]] for the planet for several minutes at a time.
* WorldsStrongestWoman: The only being in the world who can rival her niece Milim for this title, being among the few who can claim herself an equal of Guy Crimson. She's claimed multiple fatal victories over her brother Veldora and forced her sister Velgrynd to develop an entire technique dedicated to defeating her all without needing to go all-out. This still holds true in the end, as the most Veldora could do in their practice match after [[TookALevelInBadass gaining an Ultimate Skill and learning actual combat technique]] was make her exert a bit of effort to defeat him.
[[/folder]]

[[folder:Rain]]
!!Rain
!!!Primordial Bleu
[[quoteright:300:https://static.tvtropes.org/pmwiki/pub/images/rain_anime_7.png]]
->'''Voiced by:''' Creator/EriYukimura (Japanese)

The Blue Progenitor and Demon Peer who serves Guy Crimson as one of his maids.
----
* BeneathTheMask: She comes off as calm and composed as Misery at first, but that's merely a front for her real personality as a much less serious person.
* BewareTheSillyOnes: She might be more goofy than her appearance first suggests, but it must be remembered she's as strong as fellow Primordial Misery, outright called as strong as Leon Cromwell himself, and both are Guy's most powerful demon subordinates.
* BullyingADragon: She fights Diablo with the intent of ''wanting'' him to go all-out against her, confident that he's still too unused to a physical body to win against her. Ignoring the fact that Diablo is the only Primordial to have equaled Guy in combat (something that Rain and Misery ''together'' couldn't manage once upon a time), she goads him by intentionally [[BerserkButton insulting Rimuru right to his face]]. The result is her on the wrong end of a CurbStompBattle that she only survives thanks to [[MesACrowd Ubiquital Mist]] and Diablo ''knowing'' she had the copy ready but viewing that as a lesson.
* ADayInTheLimelight: She's a focus character in Volume 17 of the light novel, which focuses on several side characters.
* LazyBum: She hates doing work and tries to pawn off as much of it as she can to Misery.
* MeaningfulName: She was named "Rain" after the "rain of blood" that would follow Guy's slaughters.
* MesACrowd: Her Skill Ubiquital Mist allows her to divide up and regenerate her body with a second copy, effectively allowing for FightingAShadow whenever she wants. Even if the copy is flat-out vaporized, [[BodyBackupDrive as long as the other is intact she won't die]].
* NinjaMaid: Her role is to be both Guy Crimson's bodyguard/general as well as taking care of miscellaneous tasks such as cleaning, cooking, housekeeping, administrative duties... She would much rather drop her tasks off on Misery though.
* OneManArmy: When Diablo arrives to confront her, she's surrounded by the fallen forms of multiple paladins (which the narration takes time to note are each worth a thousand normal men) that tried to fight her while not even winded from the effort.
* RedOniBlueOni: Ironically, she's the Red to Misery's Blue, being the LazyBum who hates doing her tasks and is far more passionate about things.
[[/folder]]

[[folder:Misery]]
!!Misery
!!!Primordial Vert
[[quoteright:300:https://static.tvtropes.org/pmwiki/pub/images/misery_anime.png]]
->'''Voiced by:''' Creator/YukiHirose (Japanese)

The Green Progenitor and Demon Peer who serves Guy Crimson as one of his maids.
----
* {{Cult}}: She's the [[GodGuise object of worship]] to one, the Apostles of Vert, which she tolerates being worshipped as in order to gather intelligence in the human nations.
* KnowWhenToFoldEm: Unlike Rain, who goads Diablo into a fight and [[CurbStompBattle suffers for it]], Misery weighs the odds of fighting Testarossa and Moss at the same time and judges it not worth the risk, retreating without a fight as she had already accomplished one of her objectives in appearing before the Council of the West and destroying the barrier around Ingracia.
* MeaningfulName: She was named "Misery" to reflect the "misery of mankind" Guy brought upon the world.
* NinjaMaid: Her role is to be both Guy Crimson's bodyguard/general as well as taking care of miscellaneous tasks such as cleaning, cooking, housekeeping, administrative duties... She takes her job much more seriously than Rain.
* RedOniBlueOni: She's the Blue to Rain's Red, being the serious and devoted one to Guy.
* TheStoic: Unlike Rain, who puts up the mask of solemnness, Misery's stoicism is completely natural.
* UnskilledButStrong: Played with, as compared to most beings she and Rain are plenty StrongAndSkilled, but compared to most of the Primordials they're this. Ever since becoming Guy's subordinates, they've spent more time on administrative duties running the kingdom over training and fighting equals, so their actual combat experience pales in comparison to the constantly fighting Testarossa, Ultima, and Carerra. This is why she declines fighting Testarossa and Moss at the Council of the West when given the chance, as despite both of them being just recently-ascended Demon Peers compared to her, she's not interested in such a close fight when it's not needed.
[[/folder]]

!Puppet Nation Jistav
!!Five Fingers
[[folder:Five Fingers in General]]
The Five Fingers are the closest servants of the Demon Lord Clayman, who is known the "Marrionate Master".
----
* ForcedIntoEvil: Some members of the fingers such as Adalman and Kumara were forced into servitude by Clayman, while the likes of Myulan were given a DealWithTheDevil that forced to be loyal.
* ThemeNaming: Each of the Five Fingers has a corresponding title named after a specific hand finger.
* QuirkyMinibossSquad: They are essentially the top subordinates of Clayman due to their useful abilites.
* YouHaveOutlivedYourUsefulness: Due to Clayman's BadBoss tendencies, he has shown no regard for the safety of his Fingers, freely casting them aside and even leaveing them to their deaths if they prove no longer useful.

[[/folder]]

[[folder:Yamza]]
!!Yamza
!!!Frozen Swordmage
[[quoteright:300:https://static.tvtropes.org/pmwiki/pub/images/yamza_anime.png]]
-> '''Voiced by:''' Creator/YuyaHirose

The Middle Finger of Clayman's Five Fingers, Yamza is considered Clayman's strongest subordinate and the Commander-in-Chief of his army. As despicable as he is competent, Yamza is the only member of the Five Fingers who swore loyalty to Clayman willingly rather than be magically enslaved and thus enjoys privileges the others lack.
----
* AssholeVictim: [[spoiler:Sure, being forced to transform into a DraconicAbomination and losing your mind/soul in the process only to get put out of your misery seconds later is a tough way to go, but Yamza being such a petty, cowardly ass for nearly his whole screentime makes it clear he deserves it.]]
* CombatPragmatist: Yamza does ''not'' believe in a fair fight. Despite calling out Albis to a one-on-one duel, he has several men jump her from behind and tries to stab her in the back when she turns around to finish them off, only interrupted by Gobta's intervention. He then repeatedly tries to quickly kill Gobta while he's talking to Albis or his men, which the hobgoblin repeatedly counters.
* DirtyCoward: When Clayman's army is getting curb-stomped by Tempest and Yuurazania, he lies to his staff and claims he's going to go and bring back Adalman to turn the tide, when in reality he was about to run to save his own skin. Only [[SpaceMaster Albis']] intervention forces him to stay and fight for his life, he tries for a cheat shot InTheBack by using his men as a flanking distraction, and when she offers him a chance to live after winning if he surrenders he only hesitates out of pride before agreeing. [[spoiler:Unfortunately for him, he wasn't nearly as free of Clayman's influence as he thought.]]
* DoppelgangerAttack: His ace-in-the-hole is a MagicRing that lets him create a copy of himself that's as strong as he is, which uses for both surprise attacks and to overwhelm his foes with numbers. [[spoiler:The Charbydis created from him retains this power due to assimilating the ring.]]
* ElementalWeapon: Part of his RedBaron, as he wields an [[SpellBlade Ice Blade]] whose blade seems to be made of ice given to him by Clayman.
* FashionableAsymmetry: About the only clothing accessory he wears that's the same on both sides is his CoolMask. Even his ''hair'' is asymmetrical, one half black with long and messy/spiky bangs compared to the neater white half.
* GenreSavvy: He may be an ass, but Yamza isn`t stupid. He immediately recognized Gobta as a commanding officer and attacked him, not falling for the LethalJokeCharacter trope at all. He also tried to turn tail from the battle knowing it was lost and that facing Clayman afterwards [[YouHaveFailedMe would have ended in death or turned into a soulless puppet]].
* {{Hypocrite}}: Tries to claim Albis dishonors the name of the Three Beasteketeers by having Gobta and his Goblin Riders as back up in what was supposed to be a one-on-one duel. Ignoring the fact that she was only partially aware they were even there, the only reason they got involved was because ''Yamza'' tried to sic some of his men on Albis and tried to stab her InTheBack when she dealt with them, and they let Albis fight him on her own again.
* {{Jerkass}}: Myulan describes him as a lowlife as despicable as he is competent. His EstablishingCharacterMoment involves him smashing an apple on Middray's head while insulting him, Milim, and her people all so he can force a rise out of him and strongarm the Dragon Faithful in going to war with the army, and he doesn't hesitate to slice off Hermes' arm simply for speaking out against him and threatens to take more.
* MagicKnight: As his RedBaron suggests, he's a swordsman who wields a SpellBlade into battle and also has a MagicRing.
* UndyingLoyalty: Subverted. He might have willingly joined Clayman of his own free will, but he did so explicitly because he didn't want to get magically enslaved and thus lose the ability to [[ScrewThisImOutOfHere run off]] or betray him. [[spoiler:Just as well, since Clayman felt no such loyalty to him, either.]]
[[/folder]]

[[folder:Adalman]]
!! Adalman
->See his entry on the [[Characters/ThatTimeIGotReincarnatedAsASlimeTempestCitizens Tempest Citizens]] page.
[[/folder]]

[[folder:Kumara]]
!! Kumara
->See her entry on the [[Characters/ThatTimeIGotReincarnatedAsASlimeTempestCitizens Tempest Citizens]] page.
[[/folder]]

[[folder:Myulan]]
!! Myulan
->See her entry on the [[Characters/ThatTimeIGotReincarnatedAsASlimeTempestCitizens Tempest Citizens]] page.
[[/folder]]

[[folder:Pirone]]
!! Pirone
Clayman's Little Finger, who is responsible for gathering intelligence and infiltrating human society.
----
* AccidentalMurder: She ends up getting killed after Noir deflects Razen's "Nuclear Cannon" attack upwards, catching her off-guard and killing her, though Clayman suspects that Noir sensed her presence and redirected the attack to intentionally kill her. The manga confirms this, showing Noir spotting her even from an extreme distance just before deflecting Razen's blast into her.
* HarpingOnAboutHarpies: Her armwings and leg talons mark her as a member of the harpy race or at least a race similar to it.
* KilledOffscreen: In the Light Novel and anime, her death is only mentioned in passing by Clayman and not shown.
* OutOfFocus: Compared to the other Five Fingers, she doesn't play a prominent role in the story.
* TheSpymaster: She is Clayman's main covert agent, whom he relies upon for gathering most of his intel reports. Her death during the Falmuth massacre is the major reason why Clayman is unable to realize that Rimuru's story about Veldora awakening and slaughtering the army is false.
[[/folder]]

!!Other Magicborn
[[folder:Gelmud]]
!!Gelmud
-> '''Voiced by:''' Creator/KengoKawanishi (Japanese), Creator/VicMignogna (English)

A demon subordinate of Clayman of the Ten Great Demon Lords. Seeking to expand his master's dominion, he manipulated the various factions of the Jura Forest with the intent of conquering it all, only to find his plans coming apart at the seams thanks to one Rimuru Tempest...
----
* AssholeVictim: [[spoiler:He manipulated the residents of the Jura Forest with the intent of letting them all get killed and/or eaten by the Orc Lord Geld to turn him into a Demon Lord, who in turn he always saw as a simple pawn. Absolutely no one feels sorry when Geld decides to kill and eat him.]]
* BeCarefulWhatYouWishFor: He yells at Geld to hurry up and eat his enemies to evolve into a Demon Lord. [[spoiler:Geld takes his advice to heart and kills him, devouring his corpse to kickstart his evolution.]]
* CurbStompBattle: His "fight" with Rimuru consists of his attacks getting nullified before Rimuru ties him up and rams his fist and foot into him hard enough to send him flying.
* KilledMidSentence: He's so busy bragging about how Geld is going to kill Rimuru and his subordinates for ruining his plans [[spoiler:he doesn't even notice Geld drawing back his blade for the killing blow.]]
* MalevolentMaskedMan: He wears a PlagueDoctor mask to hide his face. [[spoiler:We never see what he looks like underneath it]].
* OffWithHisHead: [[spoiler:How he dies, courtesy of Geld's butcher knife.]]
* SmugSnake: Far too confident in his plans for his own good, and far too confident in his power to think he'd last rushing right into the middle of the battlefield with people who want him dead. He quickly caves and yells at the Orc Lord to help him.
* VillainInAWhiteSuit: Emulating his master Clayman, he dresses in a mostly white suit and hat to give off a fancy impression. He's an antagonistic demon.
* VillainousBreakdown: When he sees Rimuru's small force completely ''destroying'' the hundreds-of-thousands-strong Orc army, he starts breaking down in panic and fear upon realizing his head is on the chopping block with Clayman if he doesn't fix things, and thus he rushes to the battlefield. Once he gets there, he starts yelling in anger at them for getting in his way of creating a new Demon Lord and starts [[BullyingADragon insulting everyone there, including the Orc Lord]] before going on the attack. When Rimuru {{No Sell}}s his attempt and casually kicks his ass, he only gets worse as he panics and yells at the Orc Lord to help him.
* YouHaveFailedMe: He declares Gabiru is this for not dying and being eaten by the Orc Lord yet. He himself fears being on the receiving end of this from Clayman.
[[/folder]]

!Otherworlders
[[folder:Shizue Izawa]]
!!Shizue Izawa
!!!Explosive Monarch
[[quoteright:300:https://static.tvtropes.org/pmwiki/pub/images/shizu_anime.png]]
-> '''Voiced by:''' Creator/YumiriHanamori (Japanese), Creator/DawnMBennett (English), Jocelyn Robles (Latin American Spanish)

Another human reincarnated into this world from the Tokyo Firebombings of UsefulNotes/WorldWarII, she is a Summon who houses the soul of the Fire Giant, Ifrit, and bears a deep connection to Rimuru's fate...
----
* BrokenAce: Shizu became a hero spoken of as "[[RedBaron The Explosive Monarch]]" and did plenty of good in her life fighting monsters, saving lives, and trying to help fellow Otherworlders where she found them. She was also deep down a woman who hated the world she was summoned into because it separated her from her mother and hated herself for possessing the power of Ifrit, since she periodically lost control and killed people she cared about. It's telling that when she dies, her DyingDream involves her reuniting with her mother while reverting back to her childhood self.
* CastFromLifespan: Overexerting her magic fighting a dragon caused her to age, though to be fair she is in her 70s-80s even if she appears otherwise.
* CoolTeacher: Actually the only one able to keep the Summons class in the Freedom Academy at Incracia in check. [[spoiler:At least until Rimuru took over.]]
* CoveredInScars: Under her clothes she still has the burns from her summoning, and she only survived them because Leon had Ifrit possess her.
* CursedWithAwesome: She suspects her youth might be a curse from the demon lord but is happy with it.
* CuteGhostGirl: While she's still very much dead and nobody can see her, she periodically makes appearances in ''The Slime Diaries'' from the afterlife. In episode 8 she straight up walked among the living since there was a festival with a "spirits will visit the living" belief that becomes literal in this world, while the rest of the time she simply looks out from Heaven to comment on things. As she can't actually interact with the living anymore, she frequently watches as her friends do things that tarnish her name and memory in harmless but embarrassing ways, such as seeing Rimuru running around wearing a bunny suit with her appearance or the Blumund trio being distracted from her memory by other things.
* ADayInTheLimelight: The anime has the entirety of episode 24 be dedicated to one of her past adventures, specifically detailing her meeting with the demon that would eventually be named "Diablo".
* DeathByOriginStory: Her character is basically there to die and in the process give Rimuru a human form and a few plot threads like Leon Cromwell and the children in Ingracia. The light novel and further adaptations flesh her out a bit more, but the basics remain the same.
* DemonicPossession:
** When Ifrit originally took her over, he used her body as a vessel, but she was eventually able to take back control thanks to a hero and the use of her Anti-Demon Mask. However, recently, Ifrit began to regain strength thanks to her own own dwindling lifespan, and ultimately she falls back under it and forced to fight Rimuru. [[spoiler:However, it should be noted that Leon did this specifically to extend her lifespan, as she wouldn't have survived the burns from her summoning otherwise.]]
** The anime also changes the nature of the possession to a minor extent. In the manga, Shizue completely lost herself to Ifrit upon her original possession and only regained herself thanks to being defeated by a hero and gaining her mask. In the anime/light novel, Shizune had more control, but Ifrit could usurp her against her will if he sensed a threat in Leon's presence. The amount of time she could go without wearing the mask without risking losing herself again to Ifrit is also much smaller in the manga.
* FlamingSword: One of her preferred tactics is to wreathe her blade in fire to increase its destructive power.
* ImHavingSoulPains: Due to the fact that Ifrit is slowly starting to regain control as her life nears its end.
* InSeriesNickname: "Shizu," which was originally coined by her summoner after she told him her name as "Shizu...e" and he took it as "Shizu E."
* TheLostLenore: To Rimuru. While it is unknown if he had romantic feelings for her, her death left a significant impact on him as he swore to take care of the summoned children that she taught and confort Leon Cromwell for his actions towards her.
* MaskOfPower: Her CoolMask isn't just for show, it has anti-demon properties which helps her suppress Ifrit's influence on her mind and body. Rimuru eventually takes it as a MementoMacGuffin.
* MindControlEyes: When they turn [[RedEyesTakeWarning glowing red]], that's when Ifrit starts taking over Shizue's mind.
* MyGodWhatHaveIDone: Had [[HeroicBSOD a really bad one]] in the past when Ifrit took her over and made her torch her fellow child friend and her monster pet to ashes upon viewing said pet as a threat to Leon. (Anime/Light novel only; in the manga, [[DemonicPossession once Ifrit is inside her she doesn't regain control for quite some time.]])
* OhCrap: Shizue has one every time Ifrit starts taking her over.
* OlderThanTheyLook: She was reincarnated during UsefulNotes/WorldWarII as a child, which would put her in her 70s to 80s, but she still looks barely over her mid-20s at latest. This actually helps her keep up a disguise along with her nickname of Shizu, as none of her fellow adventurers realize that she's actually the retired hero known as "The Explosive Monarch."
* PlayingWithFire: Gains this as a result of her possession by Ifrit.
* PosthumousCharacter: She only had the barest amount of character about her detailed while she was alive, just enough to make Rimuru and the audience sympathetic to her plight. The vast majority of her character, both in terms of personality and how she affected the world, gets revealed over time through the story long after she perished and got absorbed by Rimuru.
* RedBaron: When going by her real name of Shizue Izawa, she was known throughout the land as the "Conquerer of Flames", both because she had the flame spirit Ifrit possessing her, and because she maintained control over the spirit and utilized it's fiery powers to help others.
* RetiredBadass: She's apparently been retired for ''50 years'' according to the adventurers.
* {{Revenge}}: She hates Leon Cromwell for summoning her half-dead from flames, having Ifrit [[DemonicPossession take over her body]], and then abandoning her to fight a hero as a sacrificial pawn. Her desired goal before dying was to find and hurt him for all of it, and asks Rimuru to do the job for her as part of her LastRequest. Of course, the truth is a bit more complicated than that...
* ScarsAreForever: Magic can't heal her burn scars because merging with Ifrit stabilized her body to its current state.
* SpitTake: Did one when Rimuru said he wasn't a bad slime because it reminded her of Yuuki talking about ''VideoGame/DragonQuest''.
* TogetherInDeath: Gets reunited with her mother once she finally passes.
* TransformationOfThePossessed: Happens to her when she fully loses control of Ifrit. She goes back to normal when Rimuru uses Predator on him and thus separates them.
* WizardsLiveLonger: Stopped aging at 16 or 17 thanks to either Ifrit or the demon lord.
* YourDaysAreNumbered: Despite her [[OlderThanTheyLook youthful appearance]], Shizu is quite old, in her 70s at best, and is at the end of her life. She left her retirement to exact her revenge on Leon Cromwell for summoning her from her original world, but her trip was cut short as she had no more strength to contain [[DemonicPossession Ifrit possessing her]]. Though Rimuru [[CurbStompBattle ended up beating the fire spirit quite handily]], thus freeing Shizu, the strain of combat was too much for her (not to mention Ifrit actually [[PhlebotinumMuncher keeping her alive all that time]]) and she died soon after the fight.
* YouWillBeAssimilated: On her deathbed, she tells Rimuru to absorb her using [Predator] to gain her powers and fulfill her {{Last Request}}s (to save the summoned children and to take revenge on Leon for her). Rimuru doing so is what allows him to regain a human form at last, which looks like a younger blue-haired, golden-eyed version of Shizue herself.
[[/folder]]

!!Summoned Children

[[folder:The Summoned Children in General]]
A group of five small children who, like Shizu, were summoned in order to turn into Heroes. However, because the process of summoning has some unforeseen consequences, the children now only have a few years left to live.

It is Rimuru's mission now to help the children move past their life expectancy, as Shizu's last desire.
----
* AlwaysSecondBest: All of them are this to Chloe, but it's most noticeable with Kenya. Unlike the others, who merged with Superior Spirits Rimuru created from fusing multiple minor spirits together, Kenya bonded with the Spirit of Light who outright blesses Heroes with divine protection and told him he has the potential to be a Hero just like Shizu, and he's one of the most skilled swordsmen of the bunch after his training. [[spoiler:Unfortunately for him, Chloe merged with her future self that's basically a demigod, he self-admits she's a better swordsman over him, and she's ''the'' True Hero]].
* FiveManBand:
** TheLeader: Kenya, the HotBlooded and impulsive leader.
** TheLancer: Ryota, TheStoic and shy boy compared to Kenya.
** TheSmartGuy: Gale, the oldest and wisest member of the group.
** TheBigGuy: Chloe, the most talented and strongest member of the group.
** TheChick: Alice, the SpoiledSweet of the group, who is very caring once you get past her haughty demenour.
* FusionDance: Power Booster variation. They all go through this in order to stabilize their magicule levels with Superior Spirits.
* HeroicRROD: The origin of their shortened lifespans. Summoned Otherworlders have an immense number of magicules but children do not usually inherit the Unique Skills necessary to put them to sufficient use. Pair that with the strain of containing such power on an immature body and children summoned to the Otherworld will eventually have their bodies destroyed due to their own power.
* MagicKnight: They become this thanks to their training under Rimuru, Hakurou, and Hinata, becoming equally versed in using weapons as much as their Skills and magic.
* MasterSwordsman: Kenya is the straightest example of the bunch since he's the one who mainly relies on a sword, but all of them have some swordsmanship skills at their disposal.
* SharingABody: All of them are this thanks to being fused with Superior Spirits, and even have the ability to communicate with them to some extent.
* TeacherStudentRomance: Alice is implied to have [[PrecociousCrush feelings for Rimuru]] at first, but she seems to get over them as the story hints she's growing a thing for Kenya. Chloe, on the other hand...
* TwoGirlsToATeam: Chloe and Alice are the only girls in the class, with the rest being boys.
* YourDaysAreNumbered: When Rimuru first meets them they only have a few years left to live, since the magicules in their bodies will eventually collapse if nothing is done about them. This ceases to be an issue once Rimuru and Ramiris stabilize them with the power of spirits.
[[/folder]]

[[folder:Kenya Misaki]]
[[quoteright:150:https://static.tvtropes.org/pmwiki/pub/images/kenya_anime_2.png]]
-->'''Voiced by:''' Ayaka Asai (Japanese), Creator/BrittanyLauda (English)

One of the five Summoned Otherworlder children taught by Shizue Izawa. He is shown to be the unofficial leader of the Class S children and one of the kids who was most mistrustful of Rimuru upon meeting him.
----
* AffectionateNickname: His friends affectionately call him "Ken".
* AwesomeButImpractical: Kenya has a habit of doing this. When Rimuru first mock-battled him, he had a habit of using flashy attacks with long windups that wasted his energy when they missed. Even after he gets proper training, he starts incorporating moves from various manga into his swordsmanship that look cool or have ConfusionFu style tricks, but they use overextending movements and have openings a quick enough foe could easily take advantage of.
* ElementalHairColors: He has orange hair and his prefered magic is to use fire-based attacks, like Shizu.
* TheHero: His possession of the Spirit of Light showcases that he has the possibility to become a Hero in the future.
* TheLeader: He is considered the unofficial leader of the group, which is further enhanced when he gets his spirit which marks him as a potential Hero.
* PlayingWithFire: Kenya's introduction involves him launching a flaming SwordBeam at Rimuru the moment he enters S-Class, and complaining that he missed. Rimuru is quick to note that he tends to just throw fire around, however, and that his flames aren't anywhere in the ballpark to Shizue's.
* PuppyLove: It's heavily implied that Kenya has a crush on Alice, though [[LovingBully he only knows how to express himself by challenging her to fights]].
* SpikyHair: He has spiky orange hair, befitting his HotBlooded status.
[[/folder]]

[[folder:Ryota Sekiguchi]]
[[quoteright:150:https://static.tvtropes.org/pmwiki/pub/images/ryota_anime_3.png]]
-->'''Voiced by:''' Creator/ShizukaIshigami (Japanese), Creator/ApphiaYu (English)
One of the five Summoned Otherworlder children taught by Shizue Izawa.
----
* ArcherArchetype: His weapon of choice is a bow.
* TheBerserker: Ryouta Sekiguchi is usually quiet and timid, but his special ability sends him into an animalistic berserk state where he runs on all fours, clawing and biting at his opponents.
* MakingASplash: Ryouta after he receives training is able to use water magic as well, combining it with [[BlowYouAway wind magic]] for impressive combos.
[[/folder]]

[[folder:Gale Gibson]]
[[quoteright:150:https://static.tvtropes.org/pmwiki/pub/images/gale_anime.png]]
-->'''Voiced by:''' Gen Sato (Japanese), Creator/JustinBriner (English)

One of the five Summoned Otherworlder children taught by Shizue Izawa.
----
* BigBrotherInstinct: When Gale and the others visited the Dwelling of the Spirits, he asked Rimuru to take care of the other summoned chidlren if anything were to happen to him.
* BladeOnAStick: His prefered weapon of choice is a spear.
* DishingOutDirt: Gale is able to manipulate earth's structure and composition, allowing him to make it as hard as steel. It's noted it's actually [[MundaneUtility very useful for agricultural purposes]].
* HandBlast: Gale showed the ability to fire powerful magic bullets from his hands.
* LuckilyMyShieldWillProtectMe: He wields a shield, which he uses mainly to defend himself and his allies from attack.
* SummonMagic: After obtaining his Superior Spirit and training with it, he has shown the ability to summon a earth spirit named Beast Gnome.
[[/folder]]

[[folder:Alice Rondo]]
[[quoteright:150:https://static.tvtropes.org/pmwiki/pub/images/alice_anime.png]]
-->'''Voiced by:''' Creator/HarukaShiraishi (Japanese), Creator/SarahWiedenheft (English)

One of the five Summoned Otherworlder children taught by Shizue Izawa.
----
* GirlsLoveStuffedAnimals: Alice has trio of stuffed animals that she is shown to be fond of. She can also animate them via her powers.
* MarionetteMaster: Alice is able to levitate and manipulate dolls. Rimuru thinks to himself that she would be more effective if these dolls had claws, or if she could control other tougher stuff. After her training, that's exactly what she does by not only switching up for metal dolls armed with various weapons, but she can also suspend a number of swords in the air to launch as a Storm of Blades or control telekinetically.
* {{Ojou}}: While it is unknown if she comes from a wealthy family, she has all of the mannerisms and behavior of one. After she gets her training, she starts to insist she be called "Empress" by her fellow children.
* SpaceMaster: She can manipulate the Spacial element due to her spirit.
* SpoiledSweet: Despite her haughty demenour, she is shown to be quite kind and caring towards her friends and people who have earned her trust like Rimuru.
* StormOfBlades: After obtaining her Superior Spirit and training with it, she showed the ability to levitate and control a large number of small blades, which she can use to attack others at a distance.
[[/folder]]

[[folder:Chloe Aubert ('''MASSIVE UNMARKED SPOILERS''')]]
!!Chloe Aubert
!!!Hero Chronoa
[[quoteright:150:https://static.tvtropes.org/pmwiki/pub/images/chloe_anime.png]]

-->'''Voiced by:''' Creator/AzusaTadokoro (Japanese), Creator/EmilyNeves (English)

One of the five Summoned Otherworlder children taught by Shizue Izawa, Chloe at first seems to merely be a girl with notable talents even among them. In reality, she [[TimeTravelTenseTrouble was/is/will be]] a True Hero responsible for many notable feats in the backstory of the setting, all in her goal to save Rimuru Tempest from a horrible fate...
----
* AffectionateNickname: Her friends affectionately call her "Chlo".
* BewareTheNiceOnes: Crosses over with BewareTheQuietOnes as well. Chloe is usually a kind quiet girl who is slow to anger compared to Alice. When she actually does get angry, her friends are all in agreement she's the scariest of them, and she legitimately frightened Rimuru during their mock battle by how calmly ruthless she got about using the water-blade-prison spell as a threat if he didn't surrender. That's even all ''before'' she becomes the WorldsBestWarrior.
* ChildhoodFriend: Chloe is one for Leon Cromwell. Specifically, when they were both caught up in the Summoning, she ended getting caught in a time distortion that sent her to the future, leaving him desperate to try and find her.
* DeityOfHumanOrigin: Chloe's future self -- who travels back in time to stabilize her child-self -- is a Demigod, a divine entity surpassing both Heroes and Sages. Ramiris is terrified of her, though she does little more than kiss Rimuru and indwell her past self.
* FusionDance: Compared to the other Summoned Children, Chloe and her future self take this a step further when they fully fuse, allowing Chloe full access to her future self's powers and memories (up to the ability to assume her adult form) while also being influenced by her personality.
* FutureBadass: Both this and PrecursorHeroes as well due to some TimeyWimeyBall shenanigans. Chloe as she is in the present is a powerful fighter but still an inexperienced child with a lot to learn. Her adult self is so powerful she can challenge some of the strongest beings in the world and have a shot at winning.]
* IdenticalStranger: It's not directly commented upon, but Chloe has a ''lot'' of similar traits to Shizue, specifically longish black hair and blue eyes. It's heavily implied it was these shared traits that resulted in Shizue even being summoned in the first place, as Leon had been keying his summonings to specific triggers to try and summon Chloe specifically.
* MakingASplash: Chloe can control water to such a degree she can trap people in a sphere of swirling water and then form blades in said water to slice her victims apart.
* MasterSwordsman: All of the children get at least some swordsmanship training to varying degrees of proficiency, but Chloe is the standout. Her skills with the sword improve so much ''Hakurou and Hinata'' both believe she will surpass them with time. She's also able to deflect a surprise attack by Guy while in a sitting position after she's merged with Chronoa, and subsequently parry all of his probing slashes before Rimuru steps in between them.
* MyFutureSelfAndMe: Chloe is indwelled by the time-travelling divine spirit of her future self, which according to Ramiris creates a time loop. Specifically, "future" Chloe is a Manas called "Chronoa" that is the result of Chloe constantly trying (and failing) to save her loved ones through multiple time leaps and her personality becoming more warped and cold from all the trauma.
* PrecursorHeroes: As part of the TimeyWimeyBall she's stuck in, Chloe is part of a chain of heroes that goes Chloe --> Shizue --> Rimuru --> Chloe, making her a precursor to herself.
* RippleEffectProofMemory: Played with. Chloe doesn't start remembering her past journeys until she merges with her future self in the current loop, and even then she can only recall the last loop with good accuracy while past loops filter in and out. Hinata speculates this is similar to how even a normal human can't perfectly recall every past memory.
* SharingABody: Chloe takes it up a notch as not only does she host the spirit of her future self, but at one point she ends up hosting Hinata's spirit inside her during a 2000 year time jump to the past.
* StableTimeLoop: Chloe is part of a convoluted time loop, according to Ramiris. She's the Hero who sealed Veldora, who Leon was seeking to summon, and who Shizu admired and got her mask from in the past; having become a [[DeityOfHumanOrigin Demigod]] after countless time loops.
* TeacherStudentRomance: Chloe develops a PrecociousCrush on Rimuru, who laments that she should have [[JailbaitWait waited until they were 18 or 20 to confess]].
* TimeMaster: Chloe's true power, which originally manifests as the Unique Skill [Time Travel] (which is ExactlyWhatItSaysOnTheTin in a limited form) before evolving with Raphael's aid into the Ultimate Skill [Space-Time King Yog Sothoth], which allows her to control, stop, and travel through time at will. When she fully fuses with her future self, it evolves into [Space-Time God Yog Sothoth Hortz], which boosts this power to PhysicalGod tier levels.
* WalkingSpoiler: Chloe's role in the story is incredibly significant, to the point that discussing anything about her at length can lead into heavy spoiler territory.
* WorldsBestWarrior: Chloe [[TimeTravelTenseTrouble will eventually/has become]] this as the greatest Chosen Hero known throughout the world, possessing raw power to match a True Dragon combined with the swordsmanship honed from training under some of the greatest masters known in the world.
[[/folder]]

!Others
[[folder:Orc Disaster]]
!!Geld
!!!Orc King/Orc Lord/Orc Disaster
-> '''Voiced by:''' Creator/KenjiNomura (Japanese), Jim Foronda (English)

Formerly a nameless Orc King who wanted to save his people from famine, he was granted a name by the demon Gelmud under the orders of the Great Demon Lord Clayman. Obtaining the Unique skill Starved, he was meant to become a Demon Lord capable of conquering and ruling the Jura Forest as their pawn.
----
* AdaptiveAbility: As he's being burned by Rimuru's [[PlayingWithFire Flare Circle]], he develops the Heat Resistance skill to tank the rest of it.
* AlasPoorVillain: [[spoiler: His death is portrayed as such. Rimuru killing him was clearly a MercyKill, to which the Orc Lord thanked him for allowing him to rest in peace.]]
* AntiVillain: His people were starving, and he joined forces with Gelmud in order to save them.
* TheAssimilator: His Starved skill functions similarly to Rimuru's Predator skill in that they both provide the potential for infinite growth by devouring others and adding their powers and skills to their repertoire.
* AuthorityEqualsAsskicking: The leader of the Orcs and the strongest. While his soldiers were easily dispatched by Rimuru's subordinates, he was too strong for them, and Rimuru was forced to step up in order to deal with him.
* BenevolentBoss: Even after succumbing to hunger, he still loves his people. And while eating one of your own men for a power boost and healing would normally be a MoralEventHorizon, the orc in question willingly offered himself up and didn't struggle even as he was being devoured.
* DragonAscendant: [[spoiler:Technically, he's already the DragonInChief for Gelmud and by extension Clayman, but upon deciding to take Gelmud's order to evolve to the Orc Disaster to heart, he [[OffWithHisHead chops Gelmund's head off]] and eats the corpse to do it, becoming the main antagonistic force for the arc.]]
* DyingAsYourself: [[spoiler:His spirit passes on not in the form of the Orc Disaster, but the Orc King he once was.]]
* EvilIsBigger: He is nearly three times the size of a regular orc and about twice as big as his Orc Generals.
* {{Expy}}: Of [[Franchise/TheLegendOfZelda Ganon]]. Both of them are giant pig-man who became a warlord and demon king after they were driven to desperation watching their people suffer in a desert waste.
* TheGoodKing: To the orcs. He was willing to abuse his HealingFactor and tear off his own limbs in spite of the pain to provide them ''some'' sort of food.
* HealingFactor: Not only does he possess regeneration and healing magic, he can also devour others to quickly restore his stamina. It's so potent Hakurou [[OffWithHisHead slicing his head off]] just slows him down and Rimuru is forced to use Predator on him to win (and even then, he resists it longer than any other creature before him). Even when he was still nameless, he didn't think anything of tearing off his own limbs and letting his starving people eat them since they would just come back.
* IHaveComeTooFar: He tells this to Rimuru. After eating his benefactor, his own brethren and even several others, he feels that he cannot afford to lose.
* ImAHumanitarian: Since he can't absorb things like Rimuru, this is the only way Geld can actually use his Starved skill to the fullest. "Helping" is the fact it also gives him HorrorHunger so that he's not too picky about the act of eating anything in front of him.
* KickTheSonOfABitch: [[spoiler: Him killing and devouring Gelmud is not portrayed as horrifying to say at least.]]
* KnifeNut: Wields a [[{{BFS}} large machete as big as a man]]...but compared to his own size it's practically just a butcher knife.
* LargeAndInCharge: By far the largest of all the Orcs, even before his ascension to the Orc Disaster.
* PowerCopying: After [[spoiler:devouring Gelmud]], he gains the ability to use [[DeathFromAbove Death March]] [[BeamSpam Dance]].
* StrippedToTheBone: Predator strips him of all his flesh and leaves him a skeleton. ''He's still clinging to life'' even then [[spoiler:and only gives up in full with Rimuru's promise.]]
* SuperStrength: He can match Shion's strength with ease.
* TragicMonster: His underlying tragedy is that he's TheGoodKing driven to monsterous depths by evil benefactors, and he ''knows'' he's being manipulated but won't be able to save his starving people otherwise.
* UnwittingPawn: {{Subverted}}. He admits to Rimuru [[spoiler:as he's being absorbed]] that he knew Gelmund was all but certainly using from the start, but he viewed the situation as a DealWithTheDevil issue since to refuse would likely condemn his people to starvation.
* WakeUpCallBoss: The first opponent Rimuru fights who legitimately provides a challenge ([[PlayingWithFire Ifrit]] was only an issue due to Rimuru [[ForgotAboutHisPowers not remembering he had Heat Resistance]] and the risk of weaker bystanders), due to possessing powerful attacks that require dodging or intentional nullification instead of simply straight-up {{No Sell}}ing and possessing a ludicrous HealingFactor.
* WellIntentionedExtremist: All he wanted was to save his people from a famine, no matter the cost. Rimuru promising to save them is what allows him to [[FaceDeathWithDignity accept his death with grace]].
* TheWorfEffect: Despite taking a good amount of damage from their assault, he proves to be too strong for the oni and Ranga to best, showing the gap between them and a Orc Disaster. He then gets this at the hands of Rimuru, whose Predator Skill is superior to his Starved one.
* WorfHadTheFlu: While he did in fact evolve thanks to all the monsters he ate [[spoiler:including Gelmund]], Geld still didn't ''complete'' his evolution because he didn't devour any human souls to finish his awakening into a True Demon Lord.
[[/folder]]

[[folder:Charybdis]]
An ancient monster of immense power, known as the Ruler of the Skies. Sealed away by an ancient hero, it is unleashed with the intent of bringing calamity to Tempest.
----
* AnimalisticAbomination: It is a one-eyed vaguely shark-like monster -- with ray-like wings in the anime, defies gravity, possesses enough power to wipe out a country, and was born from a cloud of Veldora's magicules -- technically making it Rimuru's sibling.
* CameBackWrong: [[spoiler:The Charybdis born from Yamza being forced to swallow its core fragment is explicitly noted to be weaker than the original, to the point even with it assimilating every source of magicules nearby it could grab (including several fallen majin and the [[AnIcePerson Ice Blade]]), it would have self-destructed on its own within a day. Of course, it being born on the chaos of the battlefield makes destroying it a top priority regardless for the collateral damage.]]
* CurbStompCushion: It withstands everything Rimuru's army throws at it and even fights Rimuru himself to a stalemate, but is effortlessly defeated by Milim who considered the fact she didn't kill Phobio in the process to be a sign of her ''restraint''.
* DegradedBoss: [[spoiler:Clayman's subordinate Yamza is forced to consume a fragment of its core after he's beaten by Albis and about to surrender, due to a post-hypnotic suggestion from his boss. It's weaker than the original, but still powerful, and it inherits Yamza's Doppelganger skill, which means that it can clone itself, and the [[AnIcePerson Ice Blade's power]]. Benimaru takes it down singlehandedly thanks to having TookALevelInBadass due to Rimuru's Harvest Festival.]]
* DemonicPossession: As a spiritual entity, it needs a host in order to manifest. Phobio is tricked into becoming its host by Tear and Footman.
* DragonAncestry: Indirectly, as it is an AnimalisticAbomination spawned from Veldora's magical energy.
* EnemySummoner: When summoned, it manifests a school of Megalodons -- flying shark-monsters -- using dragon corpses.
* FlechetteStorm: It can fire its denticles/scales as razor-sharp homing projectiles.
* GravityMaster: It can manipulate gravity to enable itself and its Megalodons to fly.
* HealingFactor: It possesses Ultra-Speed Regeneration, the highest level of self-healing, which allows it to shrug off and heal away any damage that doesn't utterly destroy it in one shot. Unfortunately for it, Milim possesses such capacity to incinerate it so badly it can't heal away the damage. [[spoiler:So did Benimaru thanks to [[TookALevelInBadass getting a badass upgrade]] following Rimuru's evolution, using his Black Flames to make short work of it (admittedly a weaker version) seconds after it was forcibly reborn.]]
* NoSell: Its special ability, Magic Jamming, makes it immune to magical attacks. Unfortunately for it, Milim's [[BeamSpam Drago-Buster]] isn't magic.
* RoaringRampageOfRevenge: Owing to its host being Phobio, it attacks Tempest looking to kill Milim.
* SealedEvilInACan: It was sealed away by a hero in the distant past, though Tear and Footman trick Phobio into unsealing it and becoming its vessel by saying it will give him the power to kill Milim.
* WorfHadTheFlu: [[spoiler:The Charbydis created from Yamza being forced to eat a core fragment is explicitly noted to be weaker than the original Charybdis, even if it possesses powers the original doesn't, and would have self-destructed on its own within a day. As such, Benimaru destroying it with one Hell's Flare, while impressive, still puts him well beneath the likes of Milim.]]
[[/folder]]

[[folder:Veldanava]]
!!!Stellar Dragon King

''The'' most powerful True Dragon and strongest being in all of the multiverse. Currently dead, but his legacy has left a profound impact across the world millenia after the fact, and there are those who would seek to use that power for their own ends.
----
* DragonsAreDivine: UpToEleven. While his other True Dragon siblings can be considered gods, Veldanava was {{God}} with a capital G.
* GodIsGood: In spite of his power, everyone who has something to say about Veldanava remembers him as a noble and generous soul.
* HappilyMarried: To [[InterspeciesRomance the human Lucia]], with whom he had his daughter Milim. He would happily gush about her to his siblings, and it was through these descriptions that Veldora would actually come to understand standards of human beauty.
* TheMaker: It was Veldanava who created the multiverse, the various dimensions, and the main world the story takes place on. He also established the Voice of the World, along with the evolution and Skill systems.
* MonsterProgenitor: When Veldanava abandoned his old dragon body to take a human form [[spoiler:after his existence became unstable due to the massive power loss from siring Milim]], its decaying form spawned the mortal Dragon race.
* ThePowerOfCreation: Creation Lord Ahura Mazda allowed Veldanava to create anything of his choosing as long as he had the sufficient knowledge and power to do so. [[spoiler:This made Information King AkashicRecords a ''very'' useful RequiredSecondaryPowers]]. Notably, this seemingly was never inherited by another being after his death unlike how Michael went to Rudra and Uriel to Rimuru, [[spoiler:until it's revealed Yuuki's Unique Skill Creator is in fact a degraded version of it.]]
* StarPower: He was called the Stellar/Star King for a reason. One of the powers he used to create the multiverse from nothingness was "Stardust".
* SuperpowerLottery: Oh, where to begin. First of all, he's a [[DragonsAreDivine True Dragon]], a creature akin to a force of nature or god able to destroy the world at bare minimum. He also had no less than three Ultimate Skills: [[TheArmiesOfHeaven Justice King Michael]], [[SpaceMaster Covenant King Uriel]], and [[ThePowerOfCreation Creation Lord Ahura Mazda]]. [[spoiler:And then there's Information King AkashicRecords, which gave Veldanava knowledge of everything in existence and supplemented his ability to ''create'' anything.]]
* WorldsStrongestMan: ''The'' most powerful being in the world hands down, possessing some of the most broken Skills alongside incredible and unmatched magical and physical might in the entire series. His sibling True Dragons together could barely compare to him, and he handed [[DemonLordsAndArchdevils Guy Crimson]] the greatest CurbStompBattle of his life to the point the prideful Primordial would only acknowledge him as his superior. And this was ''after'' he willingly gave up being both TheOmnipotent ''and'' TheOmniscient. It's telling he only died after he was BroughtDownToNormal due to willing sacrificing much of his power over millennia through various acts.
[[/folder]]

* NamedWeapons: In the light novel, she is given the "Dragon Buster" sword to fight Rimuru and Veldora by the Seven Luminaries. [[spoiler:It was actually a booby-trapped weapon meant to explode at a critical moment during the fight between her and Rimuru.]]

!Ten Great Demon Lords (Later renamed to Eight Star Demon Lords or the "Octagram")
[[folder:Ten Great Demon Lords in General]]
[[quoteright:350:https://static.tvtropes.org/pmwiki/pub/images/ten_great_demon_lords.jpg]]
[[caption-width-right:350:The ten demon lords]]

The Demon Lords are among the feared beings of the setting, considered to be the most powerful and highest-ranking monsters currently existing in the world. Originating with the ascensions of Guy Crimson, Milim Nava, and Ramiris, they have long held a strong sway over the world vying for power either openly or secretly with the humans and each other.

* AsskickingEqualsAuthority: They are both the rulers of their respective domains and the most powerful beings in their territories. [[spoiler:Carrion and Frey stepping down and becoming Milim's subordinates in effect means their territories are now a part of her jurisdiction.]]
* KlingonPromotion: In order to ascend to the ranks of the great demon lords, one must be powerful enough to be recognized by at least two of the current members. If one of the current members does not approve of this, they may challenge the aspiring being to combat and if the incumbent demon lord is defeated, the aspiring being can now take the vacated spot. This how Leon Cromwell got to be a member and also how Rimuru attains his place among their ranks.
* NonIndicativeName:
** The title they had at the start of the story, "Ten Great Demon Lords", wasn't actually coined by them but rather the humans. They themselves had tried giving themselves a name, but every time they agreed on one their numbers ended up shifting and rendering it out-of-date. They kept the "Ten Great Demon Lords" name mostly because they got tired of changing it and it just so happened to accurately describe their numbers during this period of time. [[spoiler:When Rimuru joins, Clayman is killed, and Carrion and Frey step down to become Milim's subordinates]], they decide to update the name to something closer to accurate to chronicle the start of a new era (and, on Veldora's suggestion, appointed Rimuru to the job because he's good with naming things), as no one was very keen on just calling themselves the "Eight Great Demon Lords".
** Despite being called "Demon Lords", only four of them (Guy, Milim, Dino, and [[spoiler:Luminous]]) were actually ''True'' Demon Lords as acknowledged by the World. The rest of them were either Demon Lord Seeds (Carrion, Frey, Clayman, Roy) or beings that ''couldn't'' undergo the evolution in question due to their physiology (Leon is [[spoiler:a True Hero rather than a True Demon Lord]], Ramiris due to her status as a high-level Spirit affected by Guy and Milim's magical energies, and Dagruel [[spoiler:because he's such a pure Holy-aligned being in whom it's impossible for the Demon Seed to take root because its so anathema to his nature]]) but were still acknowledged for their power.
* NotSoOmniscientCouncilOfBickering: As Rimuru learns, the Demon Lords mostly tend to their own matters outside of non-aggression pacts. The awe-inspiring "Walpurgis Banquet" where the Demon Lords gather together originally began, as Ramiris put it, as tea parties between her, Milim, and Guy where they would just hang out. Several Walpurgis were effectively just get-togethers where they caught up with each other.
* ReallySevenHundredYearsOld: All of them look at most middle-aged, but in reality they're all centuries old at least. The youngest of them, Leon, is 300 years old and acknowledged as Demon Lord for 200 of those years. Most of them have lived through at least one of the Tenma Great Wars that occur every five hundred years.

[[folder:Milim Nava]]
!!Milim Nava
!!!Tyrant of Destruction
[[quoteright:300:https://static.tvtropes.org/pmwiki/pub/images/milim_anime.png]]
[[caption-width-right:300:Dragonoid]]
-> '''Voiced by''': Creator/RinaHidaka (Japanese), Creator/KristenMcGuire (English), Karen Vallejo (Latin American Spanish)

One of the most powerful Demon Lords, and one of the oldest who "rules" (or more accurately conquered) the land that surrounds the City of the Forgotten Dragon. While she is flighty and somewhat scatterbrained, she is much smarter than she looks.

* AccidentalMisnaming: She utterly sucks at remembering the names of most people. While she ''can'' ingrain the proper names of people she likes immensely, such as her close friends Guy and Rimuru or her dedicated follower and sparring buddy Middray, people she only likes moderately frequently get their names mispronounced or even mangled, such as calling Kurobee "Kurobi", while the people she doesn't care much for at most get a HeyYou, such as always calling Shion "one-horn" no matter how many times she gets corrected. She actually expresses some amazement at how, despite barely knowing him, she actually remembered Gabiru's name, which she takes as meaning he interested her enough.
* ACupAngst: She doesn't usually show it, but when Gobta brings up in ''The Slime Diaries'' Episode 7 that she should change her [[{{Stripperific}} outfit]] because it was clearly meant for someone with a more "adult" figure, she punches him out ''twice'' and then not-so-subtly threatens Rimuru and Gobta's companions when she "asks" them if they agree with him. In the New Years episode Milim irately offers to rip Shion's breasts off when the latter comments on her petit figure while complaining about how tight her kimono is around her chest.
* AdaptationalCurves: Milim has a somewhat larger bust in the anime than she does in the light novel, making her not ''completely'' flat-chested.
* AdaptationalDumbass: The anime leaves out the light novel's insights into what she is thinking, making her look much ditzier and more childish than she actually is.
* AdaptationDyeJob: In the original web novel she had white hair. The light novel and subsequent adaptations changed her hair to pink -- though her hair turns white in her SuperMode. Even then, the anime keeps her hair pink in said SuperMode.
* AdaptationalSkimpiness: In the original web novel, her regular outfit was quite different and a decent bit more modest. When the light novel brought her in, her clothes were changed to the {{Stripperific}} design they would have from then on in both the novel volumes and subsequent adaptations.
* AlmightyIdiot: Milim has the power of a literal god at her disposal, and at first glance she appears and acts like an immature and naive idiot. While ObfuscatingStupidity and DitzyGenius do cover some of it, even Guy Crimson, who's known her longer than almost anyone else, doesn't hesitate to call her an idiot and that he's long ago stopped trying to guess what she's thinking since he'd only get a headache from it.
* AuthorityEqualsAsskicking: The ruler of her nation and the strongest member of it. To put that in perspective, [[spoiler:Frey and Carrion (former Demon Lords who are among the strongest monsters that haven't properly awakened their Demon Seeds and ascended) both willingly become her subordinates and she so outclasses them it's almost laughable.]]
* AwesomeByAnalysis: Her Dragon Eye Skill allows her to gauge her opponent's magical energy even if they try to hide it, ensuring her opponents can't pretend to be weak (or strong) in front of her.
* BadassBystander: Milim lives in Tempest and doesn't make her identity a secret, so when Charybdis attacks the city, she offers to simply kill it (which she could easily do). Against Rimuru's wishes, the Oni convince her to let Rimuru fight it (he would rather simply have Milim get rid of it) because it was their country's affair and Milim is their honored guest. The fight drags on for a long time while Milim simply watches it go down, disappointed that she's not allowed to participate. Eventually Rimuru finds out that Charybdis was after Milim, so he lets her fight the monster. Milim defeats Charybdis with little effort.
* BareYourMidriff: This would actually be an understatement. She not only bares her midriff, but wears the bare minimum to cover up her private parts, with her buttocks actually showing.
* BarehandedBladeBlock: Catches Shion's {{BFS}} with one hand and virtually no effort, despite the impact cratering the ground beneath them.
* BeamSpam: Drago Buster involves creating multiple homing beams of draconic energy that are fired all at once at a target. When heavily holding back, it's still capable of utterly incinerating Charybdis, leaving only Phobio's charred and barely-alive body.
* BerserkButton:
** Calling her a "kid" generally results in people going flying or requiring large amounts of healing potion. It gets better when she starts to follow Rimuru's instruction that she should hold back, but people still go flying.
** Anybody so much as insinuating that her body is [[ACupAngst way too petite]] to make form-accentuating outfits work, such as [[BrutalHonesty Gobta]], causes her to enter a state of TranquilFury and punch out the offender, before asking all surrounding folks if they also thinks her {{Stripperific}} outfit doesn't fit her, making them fearfully state they don't to avoid getting punched too.
* BestFriend: She styles herself as Rimuru's "best friend," although this wasn't exactly a title she earned and more of a proclamation he couldn't refuse. It's also implied she ends up developing feelings for him.
* BlackKnight: When she actually decides to take a fight seriously, she dons a set of jet-black armor.
* BloodKnight:
** Milim ''really'' enjoys fighting, and reacts to powerful opponents with a SlasherSmile and glowing IcyBlueEyes. Rimuru immediately recognizes her initial borderline CuteAndPsycho tendencies as a potential problem and takes steps to teach her restraint.
** She ends up attacking [[spoiler:Rimuru during Walpurgis the moment Clayman orders her to do so. She was only pretending to be under his control, but she clearly was eager to have an excuse to fight Rimuru, who had just become a Demon Lord.]]
* BrutalHonesty: She both hates lies and being lied to, to the point she'll bluntly state her demands with no compromise and rampage if she's rejected.
* CharacterDevelopment: With Rimuru's and [[spoiler:Frey's]] guidance, Milim slowly matures into being less selfish and taking up her responsibilities as a ruler for the good of her people. Of course, that still won't stop her from saying "screw it" and running off to Tempest to have fun with her bestie when she gets sufficiently bored.
* CloudCuckoolander: Milim is frightfully powerful and could easily level Tempest, but is easily manipulated into becoming friendly because she is an incredibly flighty goofball. When she arrives to test Rimuru, his fight with her involves throwing honey in her mouth because he could tell she was a weirdo that would react positively to sweets. This works.
* ComicalAngryFace: When Veldora crashes her fight with Rimuru, Milim [[spoiler:-- who was pretending to be brainwashed by Clayman --]] quickly becomes annoyed when she sees them bantering, and in the manga is shown breaking character by blatantly pouting and fuming in the background.
* CostumePorn: Becomes quite a clotheshorse after settling in Tempest, being somewhat bored by her standard {{stripperific}} outfit.
* CurbStompBattle:
** She ends [[DraconicAbomination Charybdis]] (a monster so powerful it clashes with ''Rimuru'' and Tempest for several hours in a stalemate without slowing down) with a single direct attack and using none of her special abilities. Even moreso, the only reason its host Phobio survives is because Rimuru didn't want to deal with the fallout of killing one of Carrion's people, so she intentionally held back just enough to do that while still blowing Charybdis to pieces.
** Her fight with [[spoiler:Carrion]] is one-sided the moment she finally decides to be serious after playing around and even taking his most powerful attack head-on as a test. [[spoiler:She doesn't even need to attack ''him'', just turn his kingdom to ash with a single attack and allowed the shocked and humbled Demon Lord to surrender once he's cornered by Frey.]]
* CuteBruiser: She's immensely cute in appearance with a decently lovable personality to match, and she also has a level of sheer physical strength so high that just jumping can leave craters along with doling out {{Megaton Punch}}es frequently even when heavily restraining her power.
* DarkAndTroubledPast: She lost her mother and father at an early age, then the dragon that her father gave her as a pet was killed by a greedy kingdom that wanted to exploit her powers for themselves. She massacred them in response and became a Demon Lord, nearly destroying the world were it not for the intervention of Guy Crimson and Ramiris, and [[HopeSpot inadvertedly brought her pet back to life]]...as [[MonsterFromBeyondTheVeil the souless Chaos Dragon]] that almost destroyed the world itself and forced her to fight and seal it away. Then she spent the next thousands of years as an [[LonelyAtTheTop immortal and nigh-undefeatable being]] surrounded by those in fear of her power, who wanted to take advantage of her, who worshipped her as a deity rather than an equal, or who did care about her in their own ways but weren't much for open affection. Part of the reason she becomes so fast to befriend Rimuru was BecauseYouWereNiceToMe is in full force.
* DemonLordsAndArchdevils: The second oldest Demon Lord after Guy. In fact, her ascension happened not long after Guy's own.
* DitzyGenius: Milim lacks even an ounce of common sense and is incredibly scatterbrained, but she's actually really smart and can easily outwit people trying to manipulate her. She's also capable of using magic so advanced, Great Sage can't even begin to analyze it. Guy Crimson states that while she's an idiot, she also has an uncanny sense of intuition.
* DragonAncestry: Daughter of the True Dragon Stellar King Veldanava and the human Lucia. This also technically makes her the daughter of the world's '''{{God}}'''.
* TheDreaded: All Demon Lords are feared by almost all of the world inhabitants. What sets Milim apart is that even other Demon Lords are afraid of her.
* DreamSue: In one episode of ''The Slime Diaries'', Milim dreams about effortlessly curb-stomping Tempest -- something she ''could'' easily do. The "Sue" part comes in when Rimuru -- who is comically waving a white surrender flag -- declares he wants to become a Demon Lord and Milim's apprentice, before confessing his love for her. Milim wakes up just as they embrace, and [[IWasHavingSuchANiceDream grumbles]] that it [[EroticDream was just getting good]].
* EatingOptional: In ''The Slime Diaries'' Episode 7, Rimuru notes that technically speaking she has no need for food, since her magicule-rich dragnoid body passively provides all the energy and nourishment she needs. She still eats anyway since she enjoys the taste of it, with genuinely good food like what Shuna can cook up being something she outright loves, especially since her own followers, head priest Middray in particular, have problems comprehending that uncooked ingredients like raw carrots are not very tasty.
* EstablishingCharacterMoment: She seems like a ditz at first, but she quickly arrives at Rimuru's village, causing a crater where she lands. Several of Rimuru's strongest fighters attempt to attack her since she seemed to be a threat, but practically everything they throw at her turns out into a NoSell attack. Even Rimuru had to resort to trickery to "defeat" her by feeding her honey that she enjoyed so much she decides not to attack them in exchange for some more of it.
* FlyingBrick: She has immense power that makes her into a LightningBruiser with high potential for becoming TheJuggernaut, which is added to by also being able to levitate herself in order to travel around unobstructed. She occasionally switches to a FlyingFirepower fighting style when in situations where magic or energy bombarbment would be more effective than brute-strength pummeling.
* TheFogOfAges: Milim's lived so long (plus had a sufficiently traumatizing past) she admits she doesn't really have any memories of her parents, and her earliest years are something of a fuzz to her even if she does have some clear details. For example, when she playing and petting Ranga in ''The Slime Diaries'', she admits she doesn't fully remember where she's learned to be this good at caring for pets, but she very much ''does'' remember who and what her old "pet" was.
* GodEmperor: Played with. She does have an effective religion focused around her in the form of the Dragon Faithful and as a True Demon Lord and daughter of the world's ''actual'' {{God}} she has both the power and status to back it up, but she doesn't live up to it for a long time since she's not really interested in settling down as a proper ruler.
* HartmanHips: Her {{Stripperific}} outfit leaves almost nothing to the imagination, and the light novel and anime [[MaleGaze frequently emphasize]] her hips in contrast to her otherwise [[https://i.imgur.com/g8JoovV.jpg petite and svelte form]]. An [[https://i.imgur.com/jx61MW1.jpg official illustration]] was made of Milim in a BoobsAndButtPose with Rimuru perched on her butt, and even had a statuette made based on it.
* HellishPupils: When she's angry or bloodlusted, her irises glow blue and her pupils narrow into vertical slits, emphasizing her draconic heritage. ''Slime Diaries'' reveals that it's a MagicalEye ability called "Milim Eye" that grants her SuperSenses.
* HiddenDepths: There's heavy indication that Milim [[ObfuscatingStupidity deliberately plays up her genuine child-like attitude]] as something of a coping mechanism for her life, as she can have powerful moments of insight and self-introspection when prompted, along with moments that show she's far from a selfish person.
** In ''The Slime Diaries'' Episode 7, she seems genuinely intrigued by Geld's reasonings behind his {{Workaholic}} tendencies and at the end of the episode in a private moment with Rimuru [[spoiler:warns him about the dangers of becoming so attached to his town and its inhabitants, as she doesn't want him to suffer the pain of suddenly losing those things [[CallForward and what he would do to get them back]].]]
** In ''The Slime Diaries'' Episode 10, she listens intently to Rimuru's admittance that he's always had an unfulfilled childhood dream of making a snow hut and cooking mochi inside, and then proceeds to eagerly repurpose the giant snow-Rimuru sculpture she made so she, Rimuru, and the goblin children can all enjoy it for themselves. [[spoiler:She also always knew when Myulan was spying around and made sure to always face the recording while smiling and making acknowledging motions.]]
* HornedHumanoid: When she fights seriously and dons her armor, she has a horn out of her head like an ogre or oni.
* IdiotHair: Has a prominent curved one, emphasizing her ditzy status.
* IncestIsRelative: [[spoiler:Ends up falling for Rimuru in the finale even though it's heavily implied that he's a reincarnation of her ''father'', [[PhysicalGod Stellar Dragon Veldanava]]. That said, it should be noted Rimuru has no memories of his life as Veldanava (assuming he really ''is'' said reincarnation) and Milim herself barely knew about her father before his death anyways.]]
* ImmortalImmaturity: Despite being one of the oldest and strongest beings in the series, mentally she totally ''is'' the scatterbrained teen that her appearance suggest.
* JerkWithAHeartOfGold: Milim might be spoiled, childish and have the temper of a volcano (as well as the destructive power that comes once it awakens), but she is not a bad person. She clearly treasures her friendship with Rimuru, who was [[BecauseYouWereNiceToMe the first individual to treat her as friend rather than the powerful Demon Lord she is.]]
* KamehameHadoken: One of her favorite techniques, and the one best suited to obliterating both larger enemies and entire areas, is Drago-Nova, which channels a massive amount of magicules into a blast of draconic energy. Her first usage of it has her [[spoiler:completely wipe an entire kingdom like Yuurazania off the map, leaving nothing but a smoldering crater where it once was, alongside creating a gaping hole in two massive mountains that were in front of and behind the kingdom in the way of her shot]]. Even then, later events transpire to reveal that was her ''still'' holding back what its full power is.
* LamarckWasRight: The source of her incredible power is due to being the child of and named by the True Dragon Stellar King Veldanava, the first of the True Dragons and the original creator of the world. This allowed her to inherit a great majority of his power and partly why it was so easy for her to ascend to the rank of True Demon Lord.
* LonelyAtTheTop: She has had almost no friends for thousands of years due to her powers and because of the mortality of others, and the few among her peers she actually did consider close (Guy and Ramiris) weren't exactly "buddy-buddy" material at the time (Ramiris and her only started really growing close thanks to their mutual interactions with Rimuru). It is not surprising that she is quick to call Rimuru her 'bestie' after he treated her so nicely and even offered his friendship.
* MagicNuke: Her Drago Buster attack is capable of obliterating [[DraconicAbomination Charybdis]] with only a fraction of its full power. [[spoiler:Her Drago Nova attack turns Carrion's kingdom of Eurazania into a sea of flames while punching a massive hole clean through a mountain range -- and she was still holding back]].
* MsFanservice: While she doesn't hold a candle to the [[GagBoobs ridiculously busty]] Shion, her [[{{Stripperific}} skimpy]] outfit and [[{{Cloudcuckoolander}} goofy]] mentality is something the series likes taking advantage of by having her act like an InnocentFanserviceGirl, with artists and animators of the franchise have making her pose in ways deliberately meant to show off her hips and butt.
* MoralityPet: Like her uncle Veldora, Rimuru is this to her. Killing him could spark both her and Veldora to turn the world into a glass parking lot in retaliation.
* NamedWeapons: The sword she wields into battle is referred to as "Tenma", and according to Carrion in the manga it's known as a demon blade that she's used to spill the blood of countless monsters and demon lords.
* NighInvulnerability: None of Clayman's strikes on her person actually hurt her.
* NoSell:
** The oni originally attack her thinking she's going to attack Rimuru, but she casually counters everything they throw at her, culminating in her taking Benimaru's Black Flame spell dead on and letting it sputter out without a mark on her body.
** When she finally gets called in to battle [[AnimalisticAbomination Charybdis]], the beast unleashes a FlechetteStorm of its [[SpikeShooter scales]] at her. She just lifts a hand and the attack just falls out of the sky.
** She willingly takes [[spoiler:Demon Lord Carrion's]] strongest attack head-on and is engulfed in a massive explosion. She flies out now in [[SuperMode Battle Mode]] with no signs of visible damage and only commenting that's it's been awhile since her arm's gotten numb from an attack.
* OlderThanTheyLook: Despite being over a thousand years old, Milim looks and acts like she's in her early teens. As such those who meet her for the first time dismiss -- [[MuggingTheMonster at their peril]] -- the possibility that a young girl could be one of the most-powerful Demon Lords.
* PersonOfMassDestruction: Her 'Tyrant of Destruction' is well-earned, seeing that [[spoiler:one shot of her Drago-Nova was more than enough to level the entirety of the Beast Kingdom.]] Guy Crimson notes during a brief reflection of his ancient battle with her that if he ''didn't'' challenge her, she likely would have razed the planet of all life before her rage petered out.
* PintSizedPowerhouse: Looks like a kid, yet her strength is such that she can destroy entire kingdoms using nothing but physical power alone, to say nothing of her actual magic. When they first meet up, Great Sage informs Rimuru that even in a non-serious state, she has at least ''ten'' times the amount of power Rimuru currently has at his disposal, and this is after Rimuru got a power-up from devouring the Orc Disaster. And she proves by running roughshod over nearly anyone who fights her head-on, be they Rimuru's subordinates, Charybdis, or even [[spoiler:fellow Demon Lord Carrion]].
* PowerLimiter: Rimuru gives her a pair of gauntlets that reduce her blows to 10% of their original strength. It says something about how strong she is that [[SuperStrength she can still sent opponents several times her size into the air pretty easily]].
* PretendToBeBrainwashed: [[spoiler:The events of the war between Rimuru and Clayman have her acting as Clayman's minion, utterly destroying the Beast Kingdom of Eurazania and being subservient to his whims. Almost everybody around believed it was because he brainwashed her, but in actuality, as Guy already guessed based on what he knows about her, she was being TheMole by just pretending to be under his control in order to lull Clayman into a false sense of security so she could eventually humiliate him for being such a major jerk to everybody she likes, especially towards her bestie Rimuru. The destruction of Eurazania happened because she was having a bit too much fun with her pretending and went overboard on her "acting", and her fighting Rimuru was because her BloodKnight tendencies made her really want to see how strong her bestie became after turning into a Demon Lord.]]
* ReallySevenHundredYearsOld: Has the appearance of a twelve-year-old but is actually thousands of years old.
* RedBaron: She is known as the "Destroyer" due to her enormous physical and magical power, which is enough to decimate entire countries when she throws a tantrum.
* RequiredSecondaryPowers: The reason Milim is able to get the most out of [[UnstoppableRage Wrathful King Satan]] is because she has near bottomless and ''infinite'' reserves of Magicules from her heritage as [[DragonsAreDivine Veldanava's daughter]] to fuel the skill converting her rage into energy. Anyone else using this skill would find themselves at risk of burning out due to losing themselves in rage and not noticing their rapidly-depleting Magicule reserves. [[spoiler:Notably, fellow Demon Lord Guy Crimson copied Wrathful King Satan via his own [[PowerCopying Ultimate Skill]], yet he can only use it to about 40% of its max potential because he just doesn't have the reserves to safely use it any higher (and remember, Guy is one of the most powerful beings on the planet).]]
* SemiDivine: While she's not a Demigod like Chloe, Milim is the daughter of the multiverse's creator deity -- making her hands-down one of the most powerful characters in the series.
* SevenDeadlySins: Wields the Ultimate Skill Wrathful King Satan.
* SirNotAppearingInThisTrailer: An inverted example in the anime. She's seen briefly in the first ending seen in episodes 1-14. But she doesn't actually meet Rimuru until around episode 16, by which time a new op/ed is shown.
* {{Sleepyhead}}: She gets bored rather easily, so when there's nothing "exciting" going on, she has a habit of nodding off during calm and peaceful times, especially after filling her belly with delicious food.
* {{Stripperific}}: Milim's usual outfit leaves almost nothing to the imagination and is little more than an armored tube top and low-riding panties.
* SuperMode: Her Battle Mode manifests black armor on her body, turns her hair white (stays pink in the anime), and causes her to grow wings and a horn in the middle of her forehead.
* SuperSpeed: During her fight with Rimuru at Walpurgis, she's constantly {{FlashStep}}ping around and Rimuru can barely keep up even with Thought Acceleration on max (which is at ''one million'' times normal) and Raphael on support.
* ThereWasADoor: Double-subverted in ''The Slime Diaries'' Episode 7, where she does in fact use the doors...and smashes them open so hard they fly right off the hinges.
* ThroughHisStomach: Basically how Rimuru "defeats" her in their first fight. He loads up a special attack, which appears to be a golden orb of power, and then smashes it into Milim's mouth. Said "orb" was actually just some honey he found, but she loved it so much that she was willing to consider their duel a "draw" and promises not to attack Rimuru's village or teammates, declaring Rimuru her "bestie" and Tempest to be under her protection.
* {{Troll}}: [[spoiler:While pretending to be under Clayman's control, she went out of her way to annoy him, like, for example, eating all the food he had in his castle with no manners whatsoever. Even Frey felt somewhat bad for Clayman.]]
* UnstoppableRage: Is widely feared for it since she becomes unstoppable once sufficiently enraged to the point that only demon lords can stop her. Since her rage also converts to energy thanks to her Ultimate Skill, she can virtually fight endlessly as long as she is angry and gradually get stronger throughout it all since she also has near ''infinite'' reserves of Magicules to fuel the Skill. Her ancient fight with Guy Crimson only ended after a total week's worth of combat, not from Guy actually ''winning'', but simply holding his own long enough for her rage to taper off and start thinking reasonably again.
* VerbalTic: In Japanese, she often ends her sentences with "nanoda".
* WakeUpCallBoss: PlayedWith. At the time of her appearance, she's the first opponent who explicitly is many times stronger than Rimuru is...so Rimuru doesn't engage her in a fruitless battle to the death, but feeds her a bunch of delicious honey to calm her down and bribes her with more if she calls it a draw.
* WillfullyWeak: She learns the concept of restraint during her stay in Tempest and tries to hold back as much as she could in order to impress Rimuru. That being said, she's still able to destroy a giant DraconicAbomination in one blast of her magic while managing to keep its host barely alive as a demonstration of her newfound restraint. [[spoiler:She also considers the destruction of Yuurazania and a nearby mountain range as her deliberately pulling her punches.]]
* WhoWantsToLiveForever: Rimuru theorizes that she chose a life of solitude so that she wouldn't outlive all her friends. This would also explain why she latched onto him so quickly, as the first (theoretical) immortal to show her kindness.
* WorldsStrongestWoman: Milim is the strongest of the Demon Lords and basically the strongest being in the world. She treats blowing up a DraconicAbomination powerful enough to end a nation with single attack as showing "restraint" because she let the host live and didn't use any of her special skills to do the job. She later reveals she wasn't exaggerating in this regard, [[spoiler:as she's capable of destroying entire countries with a single attack while ''still'' holding back.]] The only other woman in the series possibly stronger than her would be her aunt Velzard, considered as the strongest of the three remaining True Dragons.
* {{Wrath}}: The embodiment of it thanks to her ultimate skill, which not only converts her rage into limitless raw power it ensures she actually gets angrier and stronger as combat drags on.