Characters / Nexo Knights

NEXO Knights

Clay Moorington

Voiced by: Giles Panton

The leader of the Nexo Knights. Righteous and dutiful, he's dedicated to being the best knight he can be. When not in battle, he tends to train to improve his skills even further.

• Ambiguously Related: To Sir Griffiths: while we know who Clay's mother is, his father's identity remains unknown. Meanwhile, not only Griffiths is described by one of the guide books as "mysterious" despite not really looking or acting all that strangely, but Tommy Andreasen confirmed that Clay's father was a knight, just like Griffiths, and the two characters bear some physical resemblance.
• And This Is for...: In the mobile game, one of the lines he can say in a level (and certain cutscenes) is "This one is for Merlok!"
• Animal Motif: Birds, or specifically, a falcon. It's his family crest, he uses flying vehicles including a jet called the "Falcon Fighter", and he also uses jetpacks.
• Anime Hair: Has a pretty spiky hairstyle.
• Back from the Dead: In episode 2 of Season 4, he's resurrected by Monstrox and turns evil, then turns good, then forces Macy to petrify him again after he becomes too dangerous, then he's resurrected again by the magic inside him.
• Badass in Distress: In Season 2 finale, his friends have to save him from being subject to Demonic Possession by the Book of Monsters.
  • This repeats in "In His Majesty's Secret Service", when his friends come to the rescue while Jestro and Monstrox argue how to kill the knight.
• BFS: His weapon is an incredible huge claymore sword.
• Busman's Holiday: When forcibly sent on vacation by everyone else, the resort Clay's at just happens to be where the Book of Cruelty has wound up.
• The Comically Serious: The steadfast, strict, and dutiful Clay is often put into comical situations due to his teammates' more colorful personalities.
• Determinator: Manages to restore himself from being turned to stone by sheer willpower.
• 11th-Hour Superpower: In the final episode, he becomes able to summon Nexo magic by himself.
• Farm Boy: In the first episode, he's noted to come from a farm (even though he actually worked as a streetsweeper). Of course, he turns out to be one of the best students in the Knights' Academy, and even without his knight skills, there's more to him than meets the eye.
• The Leader: Obviously, since he's also the protagonist.
• Like Brother and Sister: Him and Macy, the latter being one of, if not the, closest friends of his.
• Nice Guy: While fierce on the battlefield, he is actually very friendly towards most people, being in fact one of the few to actually care for Jestro before he turned evil.
• Of Corpse He Is Alive: What the other knights put his petrified body through in the first episode of Season 4.
• Punny Name: His name is a pun on his signature weapon, a claymore. It also overlaps with Meaningful Name when you see that in "Knights of the Realm: Part 1", he was given a claymore as a child when he was defending a fellow knight from his cheating sparring partner.
• Taken for Granite: His fate in Season 3. He gets better. Then it happens again. He gets better from that, too.
• Vitriolic Best Buds: Him and Lance, though by and by the "vitriolic" part becomes less prominent.
• Why Did It Have to Be Snakes?: He's afraid of failure.
• The Worsening Curse Mark: Suffers this in the third season as his body is slowly being turned into stone. By the end of episode 9, he's turned to stone completely.
• Worthy Opponent: Magmar saw him as this, but it's only revealed in Season 3.

Lance Richmond

Voiced by: Ian Hanlin

The son of a wealthy family, Lance has a tendency to put his needs and wants before his knight's duty due to his upbringing. He doesn't particularly like training or being told what to do, which usually puts him at odds with Clay.

• Animal Motif: Horses. At least thrice he's had vehicles that look like or are horses.
• Anti-Role Model: He is nearly everything a good knight shouldn't be.
• Attention Whore: He loves the spotlight. Conversely, he strongly dislikes it when people aren't paying attention to him.
• Butt-Monkey: If anyone from the Nexo Knights ends up humiliated or in a sticky situation, it's usually going to be him.
• Camp Straight: He has a flamboyant personality and is obsessed with his good looks, but a few times he's seen trying to get the girls' attention.
• Drama Queen: Wails dramatically about how his day is ruined because his phone crashes.
• Everyone Has Standards: If being a snob was a profession, he'd have a bigger fortune than his parents, but he draws the line at abusing the poor, and has zero tolerance to people who do exactly that, like Tightwad.
• First-World Problems: He's got plenty, from having to exercise at Clay's persuation to having no private island where he could sunbathe alone.
• Foil: To Macy. Both of them were born into a higher-class family than the rest of the team, and both had Fantasy Forbidding Parents trying to enforce the family's traditions on them instead of choosing a job they liked, the difference being that Macy got what she wanted by becoming a knight, while Lance wanted to be a celebrity instead. Also, while Macy wants to be treated like an equal despite being a royal, Lance, who is only a nobleman, is an Attention Whore and hates doing anything himself.
• The Friend Nobody Likes: Downplayed, as the other knights do care for him, but tend to get annoyed by his egotism.
• Headbutting Heroes: With Clay, at first. The two spend all their time bickering about what to do, with Lance disregarding Clay just 'cuz.
• Humiliation Conga: After being an arrogant prat while filming the Golden Castle remake, Lance's armor malfunctions during Jestro's attack, which is all filmed by the director and shown to the entire kingdom at the film's premiere, making everyone laugh at Lance, and causing his agent to dump him in an instant.
• Idiot Hero: He has no idea how to operate his phone, thinking when Ava talks about "back-up" that he needs to literally take a step back.
• Ignored Epiphany: No matter how often his egotism, arrogance and laziness bite him in the ass, he stays egotistic, arrogant and lazy, even if it appears that he's learned his lesson at first.
• Interclass Friendship: He's friends with Aaron, Axl and Clay, who are all of much lower social status than him.
• It's All About Me: Has the habit of trying to direct all the attention to himself, boasting about his good looks and talents.
• Jerk with a Heart of Gold: As arrogant and condescending as he can be, Lance is steadfastly dedicated to protecting the kingdom.
• Jerkass Ball: Two notable episodes turn him from a simple Upper-Class Twit into a full-blown Rich Bastard:
  • In "The Golden Castle", he makes sure the titular movie's remake, where he stars As Himself, focuses on him as much as possible, and changes the script to completely cut out Merlok (who played an important role in the events the movie is based on) and make the characters his friends are playing look pathetic in comparison to him (especially Clay's). All of this just makes his Humiliation Conga at the end of the episode all the more satisfying.
  • In "Greed Is Good?", when his parents are captured by monsters and his riches are stolen, he is only concerned about the latter, to the point of refusing to rescue his parents over what turns out to be a rather petty reason (see Fantasy-Forbidding Parent above), to the point where the villains are more willing to let them go than he is. Surprisingly, he gets away with it, only greeting his parents with a semi-sincere "It's good to have you back".
  • His mini-arc in Season 3 about filming a reality show in the Fortrex can also count: from not just bragging, but outright lying about his achievents in battle on camera, to kicking his servants out for supposedly stealing from him (and it's implied that they didn't do anything like that) and insulting Axlina just to break off her (false) feelings for him for the sake of ratings. While you'd expect him to learn from this and apologize once the knights learn the truth, he instead suggests to keep filming.
• Jet Pack: Gains one with his ultra armor form. It doesn't always work.
• Lazy Bum: At first. He even mentions his idea of training is going out clubbing all night.
• Morality Pet: Once he adopts Hamletta, he actually shows to care a lot for her, preventing Axl from eating her and even agreeing to only eat soy bacon for her sake.
• Only Known by Their Nickname: His first name is actually "Lancelot".
• Pretty Boy: His looks have earned him lots of adoring fans.
• Punny Name: His name is a pun on his signature weapon, a lance.
• Skewed Priorities:
  • His parents were carried away by Lava Monsters, with Jestro probably doing god-knows-what awful things to them? His gold being stolen is the real problem here! Then again, his parents were never in that much danger to begin with...
  • When the rest of the team comes down with a serious case of flu, Lance is the only one unafflicted, but is more concerned with whining about his hair.
  • While on a mission to rescue the queen, Lance spends most of the chase bickering with Axl about a game they'd been playing earlier.
• Small Name, Big Ego: When given the part of a lead in a movie, he insists the movie be rewritten to be even more about him than it already was, and starts throwing a tantrum when Clay and Macy dislike the results.
• Spoiled Brat: As a child, he got almost anything he wanted, and his parents never disciplined him properly, as a result he's this. Whipperella even states that Lance is a "Spoiled party boy", though he's also willing to protect the kingdom of Knighton, and is a good person most of the time.
• Token Evil Teammate: Downplayed. While he's far from evil, he's still the most abrasive and unscrupulous of the Nexo Knights who are all otherwise relatively nice people, and has a number of amoral acts behind his back, as detailed in Jerkass Ball.
• Unsympathetic Comedy Protagonist: Expect him to be portrayed this way in the episodes and shorts focusing on him...except his introductory webisode, for some reason.
• Upper-Class Twit: So very much. A frequent complaint of his is that he won't do something because he has people to do it for him.
• Used to Be a Sweet Kid: Ironically, the app-exclusive Origins Episode shows that he, while just as spoiled, was much nicer and less egotistic as a child than he is now.
• Why Did It Have to Be Snakes?: He's afraid of obscurity.

Aaron Fox

Voiced by: Alessandro Juliani

The thrill seeker who's unable to stay still, Aaron is always ready to participate in anything exciting and dangerous.

• Animal Motif: Foxes. His family crest is a fox, and it's his last name.
• Expy: He seems to be heavily based on Lewa from BIONICLE, as a green-armoured thrill seeker, though his weapon comes from Kongu.
• Full-Frontal Assault: In both "Fright Knight" and "A Little Rusty", Aaron is completely stripped of his armor, leaving him naked in front of everyone to see. He's not bothered by it in the slightest.
• Good Scars, Evil Scars: Has a notable scar over his right eyebrow.
• Informed Attribute: The magazine calls him Robin's best friend, but across the franchise, the two barely ever interact.
• Jive Turkey: Uses slang so often you'd be hard-pressed to remember a line of dialogue from him that doesn't have any.
• Malicious Misnaming: Uses it against Whipperella, which causes her to have a breakdown.
• Massive Numbered Siblings: He has fourteen siblings, and it's not even clear if he's the youngest, the oldest or in the middle, or if his parents haven't had more children since we were given that number.
• Naked People Are Funny: Aaron doesn't mind losing his armor and being left naked in public, and even states that he likes to "rock the commando look" in "Fright Knight" and "A Little Rusty", both times it does happen.
• Nothing Is Scarier: His literal fear is doing nothing.
• Punny Name: His name is a pun on arrow.
• Shameless Fanservice Guy: Has no fear of being naked in public, even in presence of women and children, though he does cover himself with his shield the second time it happens, and gets dressed as soon as he gets the chance.
• Take Up My Sword: Becomes Clay's successor once he's fully turned to stone.
• Totally Radical: The poster boy for this trope in the series.
• Why Did It Have to Be Snakes?: Initially Averted when it seems as if absolutely nothing can scare him, but it turns out that for him, Nothing Is Scarier.

Macy Halbert

Voiced by: Erin Mathews

The Knights' only female member, Macy is the daughter of King and Queen Halbert. She much prefers fighting monsters to her duties as a princess.

• Animal Motif: Dragons. It's her family crest on her mother's side, she has a robotic dragon in Season 3, and a jetpack in Year 3.
• Badass Adorable: As a Warrior Princess, she is badass by default, but has her moments of being adorable as well.
• Dragon Rider: In Season 3, she gets a robotic dragon, which is designed to bond with her as she uses it.
• Expy: She's clearly based on Princess Storm from the 2000 Knights Kingdom 1 theme. With the whole being a princess who wants to be a knight and a father who doesn't really agree or approve of her choices. Heck she's even got red hair like Storm.
• Fanboy: Of the Ned Knightly stories, especially the Golden Castle. She hates what Lance's ego-trip does to the attempted remake.
• Foil: To Lance. Both are children of high-class families, but while Lance enjoys every minute of a nobleman's life and is thrown into a panic when his wealth disappears, Macy sees her life of a princess as a Gilded Cage and wants to be treated as a normal person.
• In the Blood: Her mother, the Queen, is a skilled fighter herlesf and has a fondness for smashing things with maces as well.
• Kicking Ass in All Her Finery: Despite her hatred of her impractical dress, during Season 3 she manages to get into a fight while wearing one.
• The Knights Who Say "Squee!": Not only she is a fan of stories about Ned Knightly, but of the real Ned Knightly as well, even calling him the greatest knight and Knightonian to have ever lived.
• Not So Above It All: Though she averts most stereotypes about rich youth, her introductory webisode reveals that she does lead a blog, and is willing to make up something about herself for her followers.
• Punny Name: Her name is a pun on her signature weapon, a mace.
• Red Is Heroic: Macy's armor is red.
• The Smurfette Principle: She is the only female member of the Knights.
• Talking the Monster to Death: Her attempts to "interview" Lavaria result in the latter preferring to return inside the Book of Monsters.
• Tomboy Princess: To the point where she prefers to identify as the former rather than the latter.
• Warrior Princess: Well duh.
• What's Up, King Dude?: The other knights are surprisingly informal with her, not that she would want it any other way.
• Why Did It Have to Be Snakes?: Her worst fear is being a princess, forced to go around in an impractical fancy dress.
• Youthful Freckles: She's got freckles on her face in the television series.

Axl

Voiced by: Brian Drummond

• Animal Motif: Bulls. His helmet just happens to make him look an awful lot like one, and he has one as his family crest.
• Berserk Button: He takes his cooking seriously.
• Big Eater: He is as passionate about eating as he is about fighting.
• The Big Guy: The strongman of Nexo Knights. In the sets, it's represented by his having a larger minifigure than the others.
• Genius Bruiser: Despite his brutish, simple-minded appearance, he can be quite clever when he needs to be, as seen in "The Maze of Amazement", where he was able to figure which of the maze's walls were fake by strumming his lute and listening for echoes.
• Non-Standard Character Design: He is a Top-Heavy Guy, with far more detailed hands than the other characters.
• Only One Name: While he has a known family, they don't have a surname.
• O.O.C. Is Serious Business: As he even notes, when ill he isn't even hungry, and becomes convinced this means he's dying.
• Punny Name: His name is a pun on his signature weapon, an axe.
• Why Did It Have to Be Snakes?: He's afraid of there being no food to eat.

Allies

Robin Underwood

Voiced by: Erin Mathews

A Knights' Academy student who, by whims of fate, ends up following the Nexo Knights on their many quests. Although he handles a wrench better than a sword, he is all too eager to graduate and join the fight against the monsters.

• Ambiguously Orphaned: His mother is never mentioned, while his father is only mentioned in past tense, even by Robin himself, but what exactly happened to him is unknown.
• Animal Motifs: Chickens (or roosters). His insignia is a chicken, and he has been known to use the Rooster's Cry Nexo Power.''
• Badass Adorable: Despite looking like he couldn't hurt a fly, the guy can put up a fight with his gadgets.
• Badass Biker: His Year 3 vehicle is a motorbike.
• Badass Bookworm: What he's lacking in physical strength he makes up for with his brain. And despite that, he's shown impressive physical feats at times, such as fighting off monsters while standing on a vehicle moving at high speed.
• Benevolent Boss: The squirebots working in the Fortrex are under his command, given they refer to him as "master" once, and while he's not above making them do something dangerous or launch them out of cannon into the battlefield, he does care for them and offers help if he sees them tired.
• Black Knight: His Powered Armor made him this with its black armor.
• Bling of War: His Year 3 sets give him the same golden armor as the main knights.
• Catchphrase: "None shall pass!"
• Child Prodigy
• Composite Character: As stated below, he has characteristics of two Monty Python and the Holy Grail characters: Sir Robin and the Black Knight.
• Dark Is Not Evil: His Black Knight persona is dark and menacing in appearance, but he uses it to help people and bring fear to the villains.
• Ditzy Genius: He does fall for a pretty weak attempt at deception, believing the chest the Book of Monsters created to be filled with gear for him. Cue more monsters.
• Gadgeteer Genius: He serves as the team's tech department, all on his own.
• Gleeful and Grumpy Pairing: Gleeful to Ava's Grumpy.
• Idiot Ball: His defeat in "The Black Knight". How in the world a Child Prodigy could have fallen for such an obvious trick (see Ditzy Genius above) is only known to Robin himself.
• The Knights Who Say "Squee!": Though he is a hero in his own right by the end of Season 1, he still looks up to Clay long after that.
• Missing Mom: While a throwaway line in a spin-off book gives us some insight on his father (namely that he was the maintenance man at the royal castle), his mother is never seen or mentioned.
• Mundane Utility: The Rooster's Cry power just makes the sound of a rooster cawing. Robin uses it to wake up the knights when they're passing out from exhaustion.
• Nice Guy: He's never rude to anyone and always ready to help the knights or squirebots out.
• No Guy Wants to Be Chased: Needless to say, he does not desire Axlina's attention.
• Out of Focus: He's inexplicably absent in "Saturday Knight Fever" (ironically, his Powered Armor would've really come in handy in that particular episode), and has no lines in "Open Mike Knight".
• The Pirates Who Don't Do Anything: Despite still studying at the Knights Academy, he is hardly ever seen there, although his Year 2 description from the official web site does mention him being on a year of "independent study".
• Powered Armor: Used one for awhile.
• Ship Tease: In spite of how uncomfortable he usually feels around Axlina, the end of "Miner Setback" implies that her Operation: Jealousy in that episode worked, as he throws curious looks at her whenever she "flirts" with Lance, and invites her to check out his new invention after Lance "dumps" her.
• Shout-Out: To Sir Robin from Monty Python and the Holy Grail. However he's MUCH more braver than his namesake, though he still sports the chicken symbol. There's also the fact that his mech suit is called the Black Knight (and suffers the same fate as its namesake).
• Youthful Freckles: Sports these.

Ava Prentis

Voiced by: Marÿke Hendrikse

Another Knights' Academy student who handles Nexo Knights' digital resources, such as Merlok 2.0 and his Nexo Powers. Unlike Robin, she doesn't seem to be in much hurry to join the fight.

• Ambiguously Absent Parent: While Robin's father at least gets a few mentions in the supplementary material and spin-off books, her parents are nowhere to be seen, and it's not even mentioned if they are still around. Merlok often referring to her as "my child", despite not being her biological father, doesn't help.
• Ambiguously Jewish: A snarky Brainy Brunette who often argues with Merlok and the only hero shown demanding payment for her services (even if only once), but with no word on her religion (unsurprisingly for a LEGO-based cartoon) and no way to see if she observes kosher or Sabbath.
• Child Prodigy
• Damsel in Distress: In the mobile app she gets captured by monsters, but is either rescued by Clay or escapes on her own in the second mission. This never happens to her in the TV series, but the Rolling Headquarters set shows her imprisoned once again.
• Deadpan Snarker: Oh so much.
• Gadgeteer Genius: Not as much as Robin, but it's her computer skill that allowed her to unlock Merlok 2.0 and send the knights their Nexo scans.
• Gamer Chick: Though she is shown playing video games only once in the series, the encyclopedia hints at it being one of her favorite pastimes. Her Year 1 minifigure even comes with a gamepad.
• Gleeful and Grumpy Pairing: Grumpy to Robin's Gleeful.
• Non-Action Snarker: The only time in the entire franchise she actually takes part in a fight is in a comic from the tie-in magazine, and it ends badly for her. The closest she comes to fighting in the TV series is activating Fortrex's cannons, but boy does she have a sharp tongue.
• Not So Above It All: Even Ava can't stand Clay's relentless training regime, and joins with the others in shipping him off for a vacation, so she can slack off.
• O.O.C. Is Serious Business: If you see her even slightly scared, you know shit has hit the fan.
• The Pirates Who Don't Do Anything: Despite her promotion to a junior knight as of Season 1 finale, she is the only member of the team (if you include her and Robin) who never fights monsters and doesn't seem to have any combat skills. In general, her only job seems to be scanning Nexo Powers for her comrades to use.
• Punny Name: "Ava Prentis" is one for "apprentice".
• Suddenly Shouting: She's prone to THIS AT TIMES!
• Tsundere: As much as Ava comes across as a grump, she does care about Merlok, yelling she doesn't want to lose him during the Season 2 finale.

Merlok

Voiced by: Brian Drummond

The royal wizard who had locked up the Lava Monsters inside the Book of Monsters and other evil books over a hundred years ago. While attempting to stop Jestro from releasing them, he lost his body, but lives on as a digital being, "Merlok 2.0".

• Color Motif: His hologram form is associated with orange.
• Heroic Sacrifice: In the comics, he sacrifices himself to give Clay the power necessary to take out Monstrox for good, and unlike all the previous times he was on the brink of death, there's no indication of him coming back.
• Killed Off for Real: If the comics from the 2018 issues of the official magazine are to be considered canon, this is his unfortunate fate in the final issue (see Heroic Sacrifice above for more details).
• Last of His Kind: The only wizard left in Knighton. And then he goes boom trying to stop Jestro taking the Book of Monsters.
• Mentor Occupational Hazard: Technically, he's already fallen victim to it. It just didn't keep him down.
• Nice Job Breaking It, Hero: Sacrificing himself not only didn't stop Jestro and the Book, but it also scattered all the evil books around the kingdom.
• Poor Communication Kills: Partly on account of senility. At the beginning of Season 2, he tells the knights they need to look for something in the library, but can't remember what. It's only after Jestro and the Book have found it, got it and fled that he remembers what it is.
• Wizard Classic: How he looked in life.

King Halbert

Voiced by: Brian Drummond

The current monarch of Knighton and Macy Halbert's father.

• All There in the Manual: His first name is "Eggred".
• Amazingly Embarrassing Parents: Wanting to protect his daughter is nothing to be ashamed of, but his actions at the graduation ceremony are seriously humiliating for her.
  • Not to mention pretty much every time he forces Macy to wear her princess dress, with lots of attention drawn to her, despite knowing how much this embarrasses her.
• Assurance Backfire: After Jestro takes out all the power in the city, he tries reassuring everyone, and does such a bad job he sends them into a panic.
• Bling of War: He's got fancy golden armor.
• Control Freak: He greatly dislikes the idea of Macy risking her life as a knight, and would rather she simply stay in the castle, where he can keep an eye on her, although over the course of the series he gradually becomes more acceptive of Macy's choice.
• Cowardly Lion: He's not much of a fighter. In fact, he's pretty afraid of pain. And anything scary in general.
• Fantasy-Forbidding Parent: He tries to do everything he can to talk Macy out of doing anything dangerous, including not giving her a shield at her graduation ceremony.
• The Good King: They don't call him "King Halbert the Benevolent" for nothing.
• Jerkass Ball: Knowing how nice he usually is, it's hard to believe he fired Roberto Arnoldi just for making a statue of his wife that he didn't like, but she did. Not to mention what exactly this turned Arnoldi into...
• Pet the Dog: As he starts getting Character Development, he starts approving of Macy's choices more, even getting Robin to build a new vehicle for her as a birthday gift.
• Powered Armor: Eventually acquires one for himself, and wears it throughout Season 3 to always be ready for a battle. Shame then that he's also a total klutz.

Queen Halbert

Voiced by: Nicole Oliver

The queen of Knighton and Macy Halbert's mother.

• All There in the Manual: Her first name is "Hama".
• Badass in Distress:
  • In her toy forms, in both sets she's been released with, Queen Halbert has or is being imprisoned by the bad guys (and given both times her minifigure comes with a furious expression,she's not taking it lying down).
  • She gets abducted by Ruina during Season 3.
• Berserk Button: Anything trying to harm her husband and/or daughter.
• Bling of War: Matching her husband's.
• Blood Knight: Macey does not get her love of hammers from her father. Hama enjoys smacking things with hammers.
• Grievous Harm with a Body: During Jestro's first attack on the city, she fights off some monsters by using one of the guard robots as a club.
• Open-Minded Parent: Unlike her husband, the queen is fine with Macy being a knight.
• Royals Who Actually Do Something: Unlike her husband, the queen is a fighter.

Robot Hoodlum

Voiced by: Michael Donovan

A Squirebot thief leading the band of Merry Mechs, who resides in the Rock Wood Forest and steals from the rich people coming there so he can provide for the poor and abandoned robots. The villains chose to use his thieving skills for their own benefit and leave the Nexo Knights without their most important weapons.

• Brainwashed and Crazy: A few electric zaps from Monstrox, and he goes from "Steal from the rich!" to "Shields from the rich!", and sets out to steal the Nexo Knights' shields.
• Defeat Means Friendship: After he and the Nexo Knights sort out their differences, his gang becomes an ally of them and assists them in fighting Stone Monsters.
• Just Like Robin Hood: How the characters sympathising with him (read: Dennis) view him. He uses the money and gold he steals to repair abandoned Squirebots who have nobody else to turn to, but admits that he doesn't help poor humans. Robin eventually convinces him to let him fix the robots instead of robbing people.
• Lovable Rogue: He always speaks politely, even to his victims, and is able to charm Dennis into letting his gang steal the knights' Nexo Shields.
• Robin Hoodlum: Downplayed: most people in Knighton, but most notably the rich ones like Jorah and Lance, view Hoodlum as this, but his desire to help the poor is genuine, although he doesn't bother to think whether the people he's stealing from deserve it or not or help out someone other than Squirebots. That said, he insists on stealing only from the rich.

Recurring Antagonists

Jestro

Current appearance

^{Click to see him in Season 1 & 2}

^{Click to see him as the royal jester}

Voiced by: Vincent Tong

A royal jester with self-esteem issues, Jestro's attempts at entertaining people usually fail miserably, resulting in him becoming the laughingstock of the kingdom.

The Book of Monsters manipulated him to become a villain, and he embraced his new role in hopes of finally being good at something.

• Bad "Bad Acting": He's never been good at acting, even as a child.
• Berserk Button: Being laughed at makes him lose his temper.
• Brainwashed and Crazy: Throughout Seasons 3 and 4.
• Character Tics: "The Knights of the Realm Part 2" revealed that he juggled as a kid whenever he was nervous.
• Cloudcuckoolander: He insists the earth is donut shaped.
• The Dragon: Totally willing to work under Monstrox in the series finale, acknowledging that while he'd like to be the Big Bad, he's totally outclassed.
• Easily Condemned: A variation in that he did do a crime, but not under free will. After he's brainwashed into villainy in Season 3, Macy, despite having seen his Heel–Face Turn from start to the end in the previous season, jumps to the conclusion that he rejoined the dark side willingly. In fact, only Clay appears to have guessed what was really going on.
• Easily Forgiven: Played straight in Season 2 finale, where he faces no repercussion for his crimes and is even given his job back. He doesn't get off so easily in Season 4 finale, even though this time he was turned evil against his will.
• Even Evil Has Standards: Yes, even as a Card-Carrying Villain, he has his limits. For one, he refused to throw the Snotheiser special at anyone before the Book told him this wasn't the plan, and actually seemed to feel sorry for Clay when he came down with a cold.
• Evil Costume Switch:
  • His jester's outfit turns to red-and-blue when he touches the Book of Evil.
  • Inverted when he turns good, donning a blue-and-orange outfit with armor on it.
• Evil Feels Good: Enjoys being evil because it's something he's moderately good at.
• Evil Has a Bad Sense of Humor: Both in the sense of bad as in "unpleasant" and in "not funny", especially after series 3. He scolds the Cloud for making a stupid pun, but then starts cackling his head off when they make another, equally awful pun.
• Evil Makes You Ugly: He looked like an ordinary person before he touched the Book of Evil, which gave him yellow teeth and eyes. After another dose of dark magic in Season 3 premiere, his skin looks like electricity is coursing through it.
• General Failure: His first act on summoning General Magmar, who the Book assures him is a military genius? Put the man to work rigging up booby traps, rather than coming up with a winning strategy.
• Harmless Villain: At first, despite wanting to be evil, Jestro is utterly terrible at it.
• Hated by All: Almost nobody likes Jestro. The only three people who were shown to truly care for him are Clay, Merlok and the king, whether or not the Book cares for the guy or just uses him largely depends on the episode, Lavaria had a crush on him but was willing to let him become a vessel for Monstrox, and anyone else who doesn't hate Jestro either fears him or is indifferent to him. In fact, not even the heroes seem to feel pity for him even after his Heel–Face Turn, as Lance and Aaron outright stated he deserved to be captured by Monstrox, and when he is brainwashed into villainy, Macy is the first to assume that Jestro betrayed the heroes willingly and accuses him of being an Ungrateful Bastard for all the "second chances" they allegedly gave him.
• Heel–Face Revolving Door: He started out good, but was manipulated by the Book of Monsters into working with him. He reformed in Season 2, but was once again corrupted in Season 3. After Season 4, he manages to side with the Knights.
• Heroes' Frontier Step: When the Book and Lava Monsters corner him and Clay, he chooses to take responsibility for his actions and gets himself captured so that Clay can escape with the Book of Betrayal, proving that he's changed for real.
• Horns of Villainy: Whenever he does something truly evil, his jester hat twist itself to look like a pair of horns. This continues in Season 3 where the hat actually emits a torrent of electricity between the two points.
• Horrible Judge of Character: The Book of Monsters easily manipulated him to do his bidding. Jestro later admits that he's never been good at reading people.
• My God, What Have I Done?: He comes to regret having ever worked with the Book of Monsters, which leads to him saving Clay from the villains twice.
• Red Eyes, Take Warning: Well more of a red pupils during Season 1 and 2.
• Street Urchin: He started off as an orphan living in the streets.
• Supernatural Gold Eyes: His eyes glow gold whenever he starts putting effort into being evil.
• Sympathetic Villain, Despicable Villain: Sympathetic to the Book of Monsters' Despicable.
• Took a Level in Badass: Along with a level in Jerkass, during Season 3. He becomes more evil, and more of an actual threat, even talking back to the Cloud on occasion.
• Villainous Harlequin: Just take a look at his hat.
• Walking Disaster Area: His attempt at doing a magic show ends with him flinging a power mace into the nearest wiring, cutting off power to the entire city. He also makes a comment in episode 3 that he badly smashed up Ye Olde Royal RV when he performed a show in it.
• We Used to Be Friends: He and Clay have known each other since they were kids, and needless to say, Clay is hurt by his turn to the dark side.
• Yank the Dog's Chain: Just as Jestro finally gets a chance to be a good comedian, the Book betrays him and preps him for a case of Demonic Possession.
  • And again in Season 3, where he finally finds a job as a weather reporter and tries to make peace with Knightonians only for Monstrox to brainwash the guy into servitude.
• Would Hurt a Child:
  • In "The Book of Obsession", he hits a costumed kid with his staff just for standing in his way.
  • He was eager to trash the Fortrex when he thought the Nexo Knights were still inside. Once he realized that they'd left and only a bunch of the academy students were there, he became even more intent on trashing it.

Book of Monsters/Monstrox

Voiced by: Mark Oliver

A sentient evil spellbook and Jestro's mentor. The Book of Monsters is highly manipulative, requiring an unsuspecting pawn to summon monsters from his pages due to his lack of limbs. He seeks to consume all the eleven books of black magic, which enhance the powers of the monsters summoned through him.

In reality he is Monstrox, the arch necromancer. A century ago Merlok turned him into a book and his evil powers were separated into the eleven spellbooks he seeks.

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• Arch-Enemy: The closest Merlok has to one, considering he's fought the magician since before the series even started and is responsible for much of the suffering he and his family went through, whether it was corrupting his relatives with dark magic accidentally or on purpose or forcing Merlok into a Heroic Sacrifice.
• Big Bad: He kicks off the series by swaying Jestro to his side, and no matter what the latter thinks, remains the dominant bad guy throughout it.
• Brooklyn Rage: Oliver himself compared his voice and personality to that of New Yorkers, complete with a rather strong accent.
• Card-Carrying Villain: In The Book of Monstrox he constantly adjusts his speech to insert as many evil metaphors as possible. He also outright claims that dark magic is more interesting that magic to help mankind.
• Combat Pragmatist: "Five on five. Pretty fair odds. But why fight fair?"
• The Corrupter:
  • Is responsible for Jestro becoming evil not once, but twice! In his cloud form, he can do this simply by zapping something with a bolt of lightning.
  • The Wizards' Council sans Merlok also suffered this fate at his hands.
• Cumulonemesis: As the Cloud, natch. Comes with the occasional drawbacks, such as being victim to basic geo-physics (though not the wind).
• Deadpan Snarker: Often, especially towards Jestro.
• Elemental Powers: As a cloud he can use lightning attacks, and even then it's hinted at with the monsters he created (Lava monsters when he was still a book, followed by turning statues into stone monsters).
• Evil Counterpart: To Merlok, as both are the sources of powerful magic for their respective parties. The similarity becomes even more uncanny in the Year 3 sets where he also becomes a hologram.
• Evil Smells Bad: According to Jestro, he stinks. The Book retorts that he's been sitting on a shelf for a hundred years.
• Evil Sounds Deep: Once he possesses the Colossus of Ultimate Destruction, his voice become nigh-indecipherably deep.
• Fallen Hero: Implied. Monstrox used to be one of the Wizard's Council, and while we don't know how much role they played in him becoming evil, Merlok claims that the Forbidden Powers drove him mad as he casted them.
• Killed Off for Real: The comics from the official magazine have Clay destroy him in his virus form, and this time there's no indication that he may have survived.
• Laughably Evil: He is generally one of the funniest characters in the show, but his monologuing in The Book of Monstrox deserves a special mention.
• Manipulative Bastard: All that talk about how he just wanted to make Jestro the greatest villain ever, someone nobody would laugh at? Nonsense, he was using the guy to restore his own powers and then get himself a new body...''Jestro's body'', that is. He even happily admits to the captured Jestro that in the end it was all about him.
• Metaphorically True: He did want Jestro to become the greatest villain in a way...he just didn't say that said "greatest villain" would be Monstrox, AKA the book's true identity, controlling his body.
• Names to Run Away from Really Fast: Given his true identity is Monstrox, what did you expect from him?
• Not Quite Dead: First, the Knights destroy his book form, turning him into a cloud. At the end of Season 4, he loses the cloud form, but comes back as Monstrox 2.0.
• Omnicidal Maniac: In Season 3, his plans escalate from conquering the kingdom to outright destroying it.
• Practically Joker: Morbid sense of humor, fondness of chaos and being evil for the heck of it, even a harlequin sidekick whom he manipulated into taking up a villain's life...at this point you start to wonder if the resemblance is coincidental or deliberate.
• Red Eyes, Take Warning: His eyes go red with his power up at the end of Season 3.
• Sealed Evil in a Can: Technically he is this, way more in Season 1 and 2 if you consider his lava monsters trapped inside his pages.
• Shout-Out: His design and voice were inspired by a Necronomicon puppet with Stan Lee's voice.
• Surrounded by Idiots: His opinion of Jestro and Roberto most of the time, never mind the monsters.
• The Man Behind the Man: Back when he was still the Book of Monsters, he pretended to be a mentor of sorts to Jestro, when in truth he used him to become Monstrox once more.
• Sympathetic Villain, Despicable Villain: Despicable to Jestro's Sympathetic.
• Tome of Eldritch Lore: He was a spellbook filled with nasty spells and summonable monsters.
• Unreliable Expositor: Guy's a liar, and likes puffing up his resume to make himself sound better. He claims his battle with Merlok, which resulted in an entire forest being turned to stone, was an epic battle. What we see a few episodes later show it was more of a Curb-Stomp Battle which ended with Monstrux being flung over the horizon.
• Vile Villain, Saccharine Show: Most of the time he is just as comedic as everyone else in the series, and doesn't seem to be too bad despite pillaging towns on a daily basis, but there are times when he can show just how nasty he can really be by, let's say, engaging in psychological abuse, or outright genocide.
• Villainous BSoD: Finding the Lava Monsters going pacifist sends him into a funk, until they manage to trick Jestro.
• Voice of the Legion: During Season 3's finale, thanks to the Forbidden Power boost.
• Would Hurt a Child: Has no qualms about ordering the execution of Robin, who's no older than 13 at the time, to test Clay's loyalty.

Jorah Tightwad

Voiced by: Brian Drummond

A businessman and one of the richest people in Knighton, (in)famous for his greed. He is King Halbert's bitter rival and will do anything to one-up him. He also has his own order (or rather "band") of knights, Tighty Knighties, under his command.

• Abhorrent Admirer: Tries to get a kiss from Macy in "The King's Tournament", while she's visibly disturbed by his advances.
• Bad Boss: While praising his Tighty Knighties' skills in public, he has no kind words to say to them in person, and will force them to dig for hours without a break if needed.
• Corrupt Corporate Executive: Claims to own a gold factory, which, as Macy points out, can't be real as gold is mined out, not produced.
• Dirty Old Man: He's not old per se, but seemingly around King Halbert's age, and yet seems all too eager to be kissed by his daughter, demanding, in fact, a kiss from her as a victory prize.
• Fat Bastard: The Knight's Code claims he is one of the fattest people in Knighton, and a Jerkass to boot.
• Hate Sink: Easily one of the most detestable characters in the series. Even in-universe most characters seem to be disgusted by his actions: Lance is appalled by what he's done (or rather made Clay do) to the poorest town in the kingdom, while Jestro ridicules his obsession with gold.
• Karma Houdini: After committing what is essentially treason, losing a chunk of his wealth should be the least of his worries, but that's about the worst that happens to him, and the heroes appear unaware of his treachery.
• Money Fetish: Outright states that gold is power, and having lots of it will make him more powerful. One of the episodes' plot is even centered on him destroying a town just to get the right to mine gold under it.
• The Quisling: At one point, he offers Monstrox and Jestro an alliance to rule the kingdom together after defeating the Nexo Knights. They agree at first, but once his contributions to the cause prove to be ineffective, the villains go back on the deal.
• Rewarded as a Traitor Deserves: After he sells them an "indestructible" stone army, knowing that they'll use it against the kingdom, and it fails to live up to its name, Jestro and Monstrox proceed to turn all the gold in his vault into lead, and then do the same to his town.
• Violent Glaswegian: Speaks with a Scottish accent, and is a pretty nasty guy.

Roberto Arnoldi

Voiced by: Vincent Tong

Roberto Arnoldi is a sculptor who used to work for King Halbert. One day, he was commissioned to make a "smashing" statue of Queen Halbert. When he literally made a picture of Queen Halbert hammering some Scurriers, King Halbert was displeased, and fired him, despite the Queen actually liking it. Upon meeting Jestro and the Cloud of Monstrox, Roberto sided with them in order to get revenge on Knightonia, starting by making monster for Jestro and Monstrox.

• Cloudcuckoolander: Even without his literal-mindedness, Roberto's brain is often somewhere else. When Jestro mentions needing "wheels", Arnoldi starts talking about doing something with wheels of cheese.
• Evil Counterpart: To Robin, both being Gadgeteer Geniuses of modest height.
• Gadgeteer Genius: He is able to create working wheeled vehicles and even aircraft out of stone.
• Les Collaborateurs: Unlike Jestro, he joined Monstrox willingly to get back at the king for humiliating him.
• Literal-Minded: Takes what people says literally, for example, when Jestro asks for a rolling headquarters, he literally made a moving base with a noticeable head up front. When asked to make a "smashing" statue of the queen, he made it one of her smashing things.
• Mad Artist: Considering he's aiding Jestro and Monstrox in overthrowing Knightonia, he qualifies. In fact, Season 3 finale has him happily carve the image of the Stone Colossus ravaging the kingdom, showing he doesn't give a crap about what happens to it.
• Mook Maker: Has taken this job, as well as creating the new mode of transportation for the bad guys.
• Toyless Toyline Character: He's not present in the toyline.

Lava Monsters

A group of fire-based creatures who serve Jestro.

• Anarchy Is Chaos: Subverted with their "anarcho-syndicalist commune" in Season 3. They still have some form of order, and thanks to them having turned pacifistic, don't cause any chaos anymore.
• Good Colors, Evil Colors: They favor red, orange, yellow and black.
• Heel–Race Turn: They turned over a new leaf after the events of Season 2 and just want to live in peace.
• Mooks: The Ash Attackers, Crush Smashers and Flame Thrower monsters.
• No Body Left Behind: Whenever they're hit with Nexo Power, though that's not much of a problem though as they just return to the Book of Monsters and can be summoned again.
• Not Quite Dead: During the final battle, Monstrox's explosion throws the monsters out of the castle, and there's a Distant Reaction Shot showing clouds of smoke rising once they hit ground, implying that they are Killed Off for Real. Yet Season 3 reveals that at least some of them survived and settled in a different region.
• The Swarm: Seems to be a preferred tactic of magma monsters.

General Magmar

Voiced by: Garry Chalk

• The Dragon: Used to be Monstrox's right-hand monster. And still is, in fact.
• Dragon Ascendant: Becomes the leader of Lava Monsters when they assume Monstrox is gone for good.
• Evil Brit: Courtesy of being voiced by Garry Chalk.
• General Failure: He is apparently the strongest monster the Book ever produced, and is also incredibly clever. That doesn't mean he wins fights very often.
• Samurai Ponytail: Seems to be sporting one.
• Walking Shirtless Scene: His torso is always exposed.

Beast Master

Voiced by: Giles Panton

• The Beastmaster: It's in the name. Able to tame any monster, even the ones conjured up through the Book of Chaos.
• Epic Flail: Wields two of the minion magma monsters as this.
• Eyepatch of Power: Not that he actually needs it, though. He even winks at people with the covered eye.
• Gadgeteer Genius: He's the one who built the Jestromobile. However, he's not very good at it, since Jestro complains soon afterward. The Book of Monsters explains it's because of the influence of the Book of Chaos - Jestro told him what to do, he just didn't explain very well.

Flama and Moltor

• Bash Brothers: They are known to fight together. They are not above bashing each other either, if there need be.
• Dumb Muscle: They are pretty strong, but illiterate, and don't seen too sharp-minded either.
• Fog Feet: Flama has no feet. It's represented in toy form by a version of this.
• Power Fist: Moltor's hands are oversized, presumably to aid with punching folks.

Lavaria

Voiced by: Nicole Oliver

A very talented spymaster, Lavaria is a lava monster who specializes in espionage and thievery. She fulfills her missions without making a single sound.

• Bat Out of Hell: Her Ultimate form has bat-like wings.
• Designated Girl Fight: Her and Macy, being among the few females of their respective factions, are commonly pitted against each other.
• Driven to Suicide: After she gets tied up and forced to listen to Macy talking to her followers on the net, she just bashes herself with a mace and goes poof. Good thing Death Is a Slap on the Wrist for Lava Monsters.
• Femme Fatale: Her introduction is about as close as she can get to being one in a TV-Y7 rated show, even coming complete with Sexophone.
• Ignored Enamoured Underling: She pines for Jestro, but he doesn't return the affection. At least so the show's website says.
• Master of Disguise: Most of the time. She manages to disguise herself as a robot, with no-one being any the wiser, and used shapeshifting powers twice to fool her enemies.
• Paper-Thin Disguise: What was said above can't be said for the time she infiltrated a cooking competition simply by putting on a false mustache. And yet it worked.
• Stealth Expert: One of her skills is sneaking around silently to gather intelligence on the Knights and their allies.
• Yellow Eyes of Sneakiness: Fitting, for a spymaster.

Burnzie & Sparkks

• Bumbling Henchmen Duo: Hardly ever seen without each other.
• Cyclops: Sparkks, but not Burnzie.
• Dumb Muscle: Burnzie is incredibly strong, but very stupid. He's still smarter than Sparkks.
• Starter Villain: The brothers are the first non-Mook monsters Jestro learns to summon, and the first the Knights face.
• Volcanic Veins

Whiparella

Voiced by: Nicole Oliver

• Berserk Button: Aaron, the one person she couldn't scare, appears to be this for her.
• I Know What You Fear: Try to use this against her enemies, but it doesn't work if she can't figure out which thing they're afraid of.
• Reality Warper: Her whips cause their target's worst fears to appear out of nowhere, rather than just making them think they're seeing them.
• Reptiles Are Abhorrent: Unlike fellow female monster Lavaria, Whiperella is much more reptilian in appearance, and not considered as attractive by the story.
• Snake People: The lower half of her body is a snake's tail.
• Vampire Vords: She speaks with a strong Romanian accent, and her fangs make her look a lot like a vampire.
• Weapon Specialization: Her weapon of choice, as the name suggests.
• Whip of Dominance: Whiparella's main weapon is a whip (unsurprising as it's even in her name) and it can strike fear in anyone it hits.

Infernox

• Evil Is Bigger: He's bigger than Burnsie and Sparks.
• What Happened to the Mouse?: Unlike other monsters, no Infernoxes appear in season 3, leaving their fate ambiguous.

Stone Monsters

The villains in the second year. After his defeat in the first year, Monstrox was transformed into a cloud with the ability to infuse stones with evil energy by zapping them with lightning. He made use of this ability to not only animate ordinary rocks and statues, but old minions of his Taken for Granite during his battle with Merlok and creations made by Roberto Arnoldi.

General Tropes:

• Back from the Dead: Unless hit with the Combo-Nexo power, their bodies will just turn back into stone, which Monstrox can quickly fix with his lighting strikes.
• Came Back Strong: Some of them were monsters petrified by Merlok decades ago. Monstrox reviving them gives them all the additional toughness of being made of stone.
• Dumb Muscle: The rank-n-file are good for rushing the enemy, but... well, they've literally got rocks for brains. Even instructions as simple as "stay here" confuse them.
• Evil Counterpart: Some of them have access to the Forbidden Powers, evil versions of the knights' own Nexo Powers.
• Good Colors, Evil Colors: They favor pale blue, gray, purple and a little black.
• Hired Guns: Most were monsters created by Monstrox, but there are some whose origins aren't connected with the archnecromancer.
• Karma Houdini: Season 4 finale has them simply escape the battlefield after Monstrox's defeat and remain active, with the only exception being the Roguls who get petrified.
• No Body Left Behind: If struck with a Combo Nexo Power, their remains go into the Cloud of Monstrox and can't be revived anymore.
• Terrible Trio: Most of the high ranking Stone Monsters are usually found in a set of three.
• Theme Naming: Most of their names begin with "r".
• Unions Suck: Zig-Zagged. Their union rules forced Jestro and Monstrox to give most of the monsters a day-off in one of the episodes, which wasn't exactly helpful for the two since they were running short on manpower, but put the knights in an even better position than before. So the monster unions end up harmful to villains, but not the good guys.

General Garg

Voiced by: Noel Johansen

One of the leaders of the Stone Monster army, a general who once battled alongside Monstrox.

• Combat Pragmatist: According to The Book of Monstrox, he likes employing these tactics.
• Cool Sword: A double-bladed lightning sword.
• Hell Is That Noise: His signature trait is the excessive grinding he makes with his teeth.
• I Surrender, Suckers: His "Wacky Wingover" flying move, where he pretend to flee from the fight, then pounce when he's pursued.
• Taken for Granite: First he got set on fire, and then he got taken for granite.
• Uniformity Exception: Garg looks like all the other gargoyles, except he's black where they are grey. Apparently this was due to Monstrox hitting him with fireballs during a battle with Merlok by accident.

Roguls

• The Corruptible: Due to guarding the forbidden power, each individual Rogul has the ability of the forbidden power they were guarding.
• Fog Feet: With hovering rocks circling them.
• Killed Off for Real: After Monstrox is defeated, they revert back into lifeless stone.
• The Voiceless: They can't speak.

Harpies

A trio of flying Stone Monsters that are good at grabbing, consisting of Hilda, Ingrid and Ulrika.

• Harping on About Harpies
• Taken for Granite: The trio were turned to stone while attempting to nab the Forbidden Power of Ravaging Rot.

Three Brothers

As the name suggests they are three evil golem brothers (Roog, Reek and Rumble) who once battled the wizard council in the past. They now serve Monstrox and Jestro in their attempt to rule the kingdom.

• Buried Alive: In the past, they were so dangerous the Wizard Council were incapable of actually beating them. So they just buried them under a mountain.
• Came Back Wrong: Rumble's body was ruined when he was chiselled out, resulting in his current status as a car.
• Car Fu: Rumble does this, literally, as his body is now a transport for his two brothers.
• Eyepatch of Power: Once of the things distinguishing Reek from Roog is the fact he's missing an eye, covered by an eyepatch.
• Genius Bruiser: Roog is, according to Monstrox, a strategic genius.
• Losing Your Head: Happened to Rumble due to Monstrox being too impatient to wait for Arnoldi to finish carving him out. He can still bite people's ankles off though.
• Our Dwarves Are All the Same: Short, bearded, inexplicable Scottish accent. Aside from being made of stone, they tick a lot of the usual boxes.
• Unpaused: Reek was in the middle of saying being buried alive would never hold him and his brothers. When the Cloud revives him, he picks up where he left off before realizing where he is.
• Violent Glaswegian: All three speak with a Scottish accent.

Ruina/Wanda Moorington

Voiced by: Heather Doerksen

• Card-Carrying Villain: Moments after being revived, she declares herself the most evil thing in Knighton, after Jestro questions her credentials.
• Enigmatic Minion: Her strange actions seem to hint at her having a goal different from Monstrox's, which even her section in the character encyclopedia takes note of, although what it is will never be known due to the show's cancellation.
• Fallen Hero: She was a member of the Wizards' Council before Monstrox somehow corrupted her.
• Karma Houdini: At the end of Season 4, she's still out there. And then the show ended.
• Knight of Cerebus: Pretty much the only villain in the series to be portrayed without any jokes done at her expense, not to mention her debut episode just so happens to be the one where Clay's transformation into stone is completed, and things only get prettier from that point on...
• Luke, I Am Your Father: She's Clay's mother, and Merlok's sister.
• The Mole: She served as one for Monstrux while he was fighting the Wizard's Council.
• Power Echoes: Her voice comes with an additional reverb to it.
• Shock and Awe: She fights with lightning, which she can send out via her staff or from her hair.
• Sinister Scythe: A lightning scythe.
• Sleeves Are for Wimps: Her outfit lacked sleeves even before she became a rock monster, when she was a good person.
• Taken for Granite: Merlok turned her into a statue, hoping to restore her to her good self.

Lord Krakenskull

The greatest of Monstrox's generals, who led an entire army that was turned to stone alongside him in a freak accident.

• Cool Sword: A lightning blade with a skull on the hilt.
• Even Evil Has Loved Ones: He cares for his Krakenbeast, "Dolly".
• Intelligible Unintelligible: He speaks a strange language that only Monstrox can understand.
• Names to Run Away from Really Fast: Lord Krakenskull.
• Taken for Granite: By himself, no less.

Tech Monsters

The villains of the final year, a race of vampires brought back to life by the Monstrox virus. Due to the TV series having been cancelled before their introduction, they only appear in the comics from the tie-in magazine.

• Abnormal Ammo: Their weapons shoot spider-like critters, which can infect objects and people with Monstrox's tech infection.
• The Corruption: They can corrupt robots to join their side. Such as Lance's servant, Dennis.
• Evil Counterpart: They're the closest to the Nexo Knights out of all the villains, with their own Mecha-Mooks from corrupted Squirebots, mechanical vehicles, and Monstrox 2.0 even granting them their own Nexo Powers to use.
• Good Colors, Evil Colors: They prefer black, green and grey.
• Our Vampires Are Different: They're styled after vampires, with pale skin, dark clothing, red eyes and prominent fangs, but instead of feeding on blood and being associated with bats, they're associated with spiders via their critters and spread a technological virus.
• Punny Name: Several of the Mooks have "Byter" in the name, and they're effectively technological vampires.
• Sickly Green Glow: Their primary color, befitting of a force who literally infect machines and people.

Pola

• Anime Hair: Unlike most of the Tech Monsters, Pola has a large head of purple hair.
• Badass Biker: She and Fred ride the combining Twinfector.
• Smurfette Principle: Pola appears to be the only female Tech Monster.
• Tag Team Twins: With Pola, riding the Twinfector.

Fred

• Aerith and Bob: A Tech Monster named...Fred.
• Anime Hair: A limited edition minifigure revealed that Fred has the same purple hair as Pola, though he usually wears a helmet.
• Badass Biker: Rides the combining Twinfector with Pola.
• Cool Sword: Wields one in his limited edition minifigure.
• Tag Team Twins: With Pola, riding the Twinfector.

Cezar

• Evil Counterpart: He's juxtaposed against Lance, fighting alongside Lance's former Squirebot, wielding a spear and appearing somewhat similar to the vehicle Lance uses against him, the Hover Jouster.
• Mecha-Mooks: Notably, he's shown to have a personal CyberByter, the infected Dennis.
• Nonstandard Character Design: Has a mechanical lower torso with four legs that appear to have blasters mounted on the end.
• Spiders Are Scary: His lower legs are four mechanical ones.

Berserker

• The Berserker: He wears less armour than his fellow Tech Monsters, appears constantly enraged, and pilots the heavily armed Berserker Bomber.

MegaByter, MechaByter, and VanByter

• Mooks: They serve as the more basic soldiers of the Tech Monsters.
• You Are Number 6: VanByters have numerical designations; VanByter No. 407 and 307 are seen in the sets.

CyberByters

Infected Squirebots that serve as the Tech Monsters' Mecha-Mooks, including Lance's trusted squirebot Dennis.

• Arm Cannon: CyberByter Dennis uses one of these.
• Brainwashed and Crazy: They are the normally friendly Squirebots who got corrupted by the Tech Monsters.
• Mecha-Mooks: Notably the only example of the villains using this in the series.

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