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    Astrodactyl 

Astrodactyl (OV-28)

https://static.tvtropes.org/pmwiki/pub/images/astrodactyl.png

Astrodactyl was sampled from an unknown species (which Word of God states to be a "Pturbosaurian") from the planet Terradino, the same planet that Humungousaur's species is from.


  • Batman Can Breathe in Space: When Ben was ejected out of Rad's ship in "The Vampire Strikes Back," Astrodactyl was able to fly into space after it.
  • Breath Weapon: He can fire energy beams out of his beak.
  • Flying Firepower: Literally; His jetpack's propulsion can be used for attack purposes.
  • Energy Weapon: He can manifest a powerful green star energy into numerous forms, such as beams, whips, and propulsion blasts.
  • Star Power: His energy attacks are formed by some kind of internalized star power, that he can use as propulsion and different forms of weapons.
  • Super-Speed: He's incredibly fast, due to both his wings and the jetpack strapped to his back.
  • Spotlight-Stealing Squad: He is Ben's main flight alien in Omniverse, making him one of the most frequently used.
  • Suspiciously Similar Substitute: He serves as one to Jetray, being a flying speed alien whose powers include traveling through space and firing energy beams.
  • Verbal Tic: He squawks like a parrot frequently when he talks.
  • Weaponized Exhaust: Which fires a disc of energy capable of stunning.

    Atomix 

Atomix (OV-39)

https://static.tvtropes.org/pmwiki/pub/images/omniverseatomix.png

Voiced by John DiMaggio

A robot-like alien of an unknown species. He is Ben's most powerful practical transformation, second in raw power only to Alien X.


  • Ascended Extra: Like Toepick, he was briefly mentioned back in the original series episode, "Ken 10." Ken was disappointed that he was not one of the aliens on his Omnitrix. He then became a fully present alien in Omniverse.
  • Atomic Superpower: Atomix can create or manipulate atomic or nuclear energy using his hands. It's as dangerous as it sounds, powerful to the point of being a Story-Breaker Power.
  • Calling Your Attacks: Like a few other aliens, Atomix gives names to some of his attacks. These include "Fissile Whistle" (a flying punch), "Nuclear Winner" (a devastating nuclear explosion), and "Fusion Cuisine" (a miniature sun).
  • Expy: Between calling his attacks, enormous levels of power, and Kamehame Hadouken energy blasts, he's one of Goku, and anime characters in general.
  • Flying Brick: He can fly with what appear to be natural rocket boots.
  • Informed Ability: He's meant to be Ben's second most powerful alien (behind Alien X), as Vilgax defeating him in "Malgax Attacks" was made to show the former was unbeatable without Skurd's help. But while one-shotting Albedo's Ultimate Aliens is extremely impressive, there have still been several other aliens that have demonstrated even more powerful feats than Atomix note . In addition, his only other outright victory was against opponents who were already weak to light and at a disadvantage. Even in the fight against Malgax, Atomix wasn't shown to be doing anything noteworthy, with his attacks having no effect and Whampire being shown to put up just as much of a fight, if not more.
  • Kamehame Hadouken: His main attack. He even chants "HAA-MEE-NA HAA-MEE-NA HAA-MEE-NA!" while forming them.
  • Kirby Dots: The transparent openings on his body show he's full of them.
  • Large Ham: Rivals Rath as Ben's hammiest alien yet. Few of his lines are uttered without shouting in a ridiculously over-the-top manner.
  • Mecha: Between his robotic body, strength, and powers, he's basically a giant nuclear robot.
  • Nigh-Invulnerable: He completely No-Sells direct hits from Albedo's Ultimate Aliens. Even when he's hit by The Worf Effect in "Malgax Attacks," he tanks getting punched into orbit and only takes minor damage.
  • Shout-Out: A strange one, too, as his "HAA-MEE-NA HAA-MEE-NA HAA-MEE-NA!" power-up chant is a reference to one of the catchphrases of Ralph Kramden.
  • Story-Breaker Power:
    • Being second only to Alien X in power, this is a given. Despite being his most powerful practical transformation, using Atomix would be just as overkill as using Way Big.
    • Both the Duel of the Duplicates and Galactic Monsters story arcs are wrapped up effortlessly just by having Ben turn into this guy.
    • Averted in "Malgax Attacks", where he is unable to defeat the Malware-powered Vilgax.
  • Super-Strength: Able to take out Albedo's recreated Ultimate Humungousaur ...with a single punch!
  • The Power of the Sun: Creates a miniature sun, which kills Zs'Skayr. It also stays in place even after Ben changes back. He leaves it in Zs'Skayr's lab so that even after Zs'Skayr comes back, he won't be able to get in.
  • The Worf Effect: He is defeated by the Malware-powered Vilgax in "Malgax Attacks" in order to make the argument that Ben needs Skurd's abilities more convincing.
  • World's Strongest Man: Ben's most powerful practical alien, and the second most powerful overall being just behind Alien X.

    Ball Weevil 

Ball Weevil (OV-09)

https://static.tvtropes.org/pmwiki/pub/images/ball_weevil.png

Voiced by Bumper Robinson

Ball Weevil (alternatively spelled as Ballweevil) is the Omnitrix's DNA sample of an unnamed species from an unknown planet.


  • Badass Adorable: Despite being one of Ben's smallest, cutest aliens, he can still put up a fight with his plasma balls.
  • Big Creepy-Crawlies: Downplayed. Compared to Ben's other insect aliens, he's rather small, though he's still fairly powerful.
  • Big, Bulky Bomb: Ball Weevil's sticky balls grow very large very quickly as they collect more material. Naturally, the larger the ball, the larger the explosion.
  • Energy Absorption: In addition to matter, Ball Weevil's plasma balls can absorb energy.
  • Four-Legged Insect: He has the appearance of one.
  • Glass Cannon: His sticky balls do a lot of damage, but he's still small and fragile.
  • Made of Explodium: He spits out sticky balls of plasma that absorb things, and then uses them as ammo.
  • Ridiculously Cute Critter: By Ben's own admission. The first thing he remarked upon in his debut was his cuteness.
  • Shout-Out: His design is inspired by Pokémon, according to Word of God. invoked
  • Sphere Factor: Can roll on top of the sticky balls he makes.
  • Sticky Bomb: His signature ability is to create explosive balls of sticky plasma. In addition to exploding, he can use his plasma spit as a strong adhesive to trap enemies.
  • Wall Crawl: Being a bug-like creature, sticking to walls is one of his abilities.

    Bloxx 

Bloxx (OV-01)

https://static.tvtropes.org/pmwiki/pub/images/bloxx.png

Voiced by Bumper Robinson

The first new alien unlocked in Omniverse. Bloxx was sampled from a Segmentasapien from Polyominus, a species that evolved to easily hide themselves amongst the structures of their home planet. As a result, their body is entirely made of LEGO-like bricks that can reconfigure and stretch themselves, giving them shapeshifting abilities.

Ben 23's version is named Build-A-Guy.


  • Agony of the Feet: Referencing the meme about LEGO and feet, Ben manages to trip up Khyber, who is currently in the form of a giant monster, by firing a pile of Bloxx pieces at his feet during "Stuck On You", causing Khyber immense pain so he falls over.
  • Arm Cannon: He can shapeshift his arms into cannons that use his own bricks as ammunition.
  • Back for the Finale: Omniverse Ben brings Bloxx with him for the Reboot's finale episode.
  • Built with LEGO: An alien gorilla made entirely of colorful, rearrangeable bricks.
  • Detachment Combat: By the means of using the bricks that make up his body as projectiles.
  • Half the Man He Used to Be: He detached the top half of his body in "Arrested Development." Thanks to his Healing Factor, this wasn't much of a problem.
  • Healing Factor: He can regenerate from nearly any injury. As early as his debut, his head could be blasted to pieces and instantly reform.
  • Made of Plasticine: He kind of needs his Healing Factor when his body shatters so easily.
  • Our Monsters Are Weird: Again, he's a gorilla made from living LEGO bricks.
  • Rolling Attack: While fighting the Dimension 12 robots, he curled up into a ball and smashed into them in a similar manner to Cannonbolt.
  • Rubber Man: His shapeshifting powers are extraordinarily flexible, being able to turn into domes, walls, catapults, and just about anything he can imagine.
  • Shout-Out:
    • Between his design and color scheme, he's a pretty obvious one to LEGO.
    • He's also similar to GutsMan.EXE from Mega Man Battle Network in terms of design.
  • Stone Wall: He's almost used entirely for defense, though he has utilized his super strength on occasion.
  • Super-Strength: He's strong enough to tear the heads off of Dimension 12 robots with his bare hands.
  • Voluntary Shapeshifting: He's basically Plastic Man made out of LEGO bricks.
  • Who Needs Their Whole Body?: Bisection didn't slow him down one bit.

    Bullfrag 

Bullfrag (OV-27)

https://static.tvtropes.org/pmwiki/pub/images/65b61b31_f860_4f24_8948_4ec194d16f19.png

Voiced by John DiMaggio

Bullfrag is the Omnitrix's DNA sample of an Incursean from an unknown and destroyed planet.


    Crashhopper 

Crashhopper (OV-06)

https://static.tvtropes.org/pmwiki/pub/images/crashhopper.png

Crashhopper is the Omnitrix's DNA sample of an Orthopterran from an unknown planet.


  • Big Creepy-Crawlies: He is an alien giant anthropomorphic grasshopper.
  • Butt-Monkey: A lot of his first episodes have Ben getting bad stuff happening to him while in this form: He accidentally encased his head in rock when first testing his powers, is the first alien Khyber's pet confronts using the right predator, gets the crap beaten out of him by a Tetramand princess, mistaken for a locust by angry farmers, and the list goes on... he even had a voluntary example when Ben used himself as bait in this form to trap the Kraken. Sometimes, you just gotta wonder if Crashhopper's real power isn't to get the crap beaten out of him.
  • In a Single Bound: Much like grasshoppers, he can jump incredibly high. He combines this with Use Your Head to powerful effect.
  • Lightning Bruiser: Crashhopper's incredible jumping abilities and tough exoskeleton make him a potent physical threat.
  • Shockwave Stomp: He can generate powerful shockwaves upon landing.
  • Spotlight-Stealing Squad: He is one of the most frequently used new aliens in Omniverse, especially in the earlier seasons. This gets downplayed in the later ones.
  • Use Your Head: His head is strong enough to destroy a small asteroid with one headbutt.

    Decagon Vreedle 
https://static.tvtropes.org/pmwiki/pub/images/decagon_vreedle_full_design.png

Decagon Vreedle is the Omnitrix's DNA sample of a Vreedle. Yes, really.


    Feedback 

Feedback (OV-01)

https://static.tvtropes.org/pmwiki/pub/images/feedback.png

Voiced by Yuri Lowenthal

Feedback was sampled from a Conductoid from Teslavorr, a species of living electric cables with the ability to absorb and redirect energy. Unlike other aliens listed in this section, Feedback was first used when Ben was 11 years old, in the time between the original series and Alien Force. He was one of Ben's favorite and most used aliens during this period of time. This was eventually abused by Malware to hurt Ben by destroying the form with his abilities (and couldn't be rescanned since Azmuth programmed the Omnitrix to not scan Conductoid DNA). Ben was left traumatized by the experience, to the point he actually attempted to kill Malware.

Ben 23's version was named "Plug Man", but he changed it after hearing Ben's name.


  • Back from the Dead: He was (somehow) brought back in "Showdown: Part 2" when Ben finally forgives himself for what happened to the form.
  • Beware My Stinger Tail: When Malware had him in a headlock, Feedback jabbed him from behind with his tail to break free.
  • Cyclops: He's only got a single eye.
  • Disney Death: Despite having being "dead" for 5 years in-universe, his death is only revealed to the audience an episode before he's restored.
  • Electric Slide: Is shown running on power lines to catch up to the getaway car of two robbers in "Showdown: Part 1".
  • Energy Absorption: He can absorb energy, and with seemingly no upper limit — not even the Big Bang was too much for him to handle.
  • Energy Weapon: He can fire the energy he absorbs as beams.
  • Family-Unfriendly Death: Malware pulls him out of the Omnitrix and he crumbles to dust.
  • Flight: He can fly by shooting energy at the ground.
  • G-Rated Drug: It's implied that he was this to Ben when he was younger. Ben became addicted to the form to the point where Feedback was the only alien he ever wanted to use, prompting Azmuth himself to come and warn Ben about his overuse of the form. Ben even admitted years later that he never understood why he liked him so much.
    Ben: He just felt different. Better. Like he was a part of me.
  • Leitmotif: An electric guitar theme plays every time Ben transforms into him.
  • Lightning Bruiser: Both literally and figuratively. He's pretty fast and agile, and he also packs quite a punch with his powerful electrical abilities.
  • My Greatest Failure: Ben considers Feedback's death to be this, and swore to never think or speak of it ever again.
  • Perpetual Smiler: He is rarely seen without a cocky grin on his face.
  • Power Cord Tail: Feedback has a slightly modified plug tail that he can use to draw energy from a source.
  • Remember the New Guy?: He is introduced in the flashbacks as Ben's favorite alien during the original series' era when he was 11, despite never even being mentioned before. Justified in that the original series ended when Ben was still 10, and Ben swore to never think about him again after his death.
  • Riddle for the Ages: How exactly Ben regained access to him when it was explicitly stated that the Omnitrix would never accept Conductoid DNA again is a mystery that even the staff can't agree on. Was it because of Ben having a new Omnitrix? Was Feedback literally absorbed directly into Malware's body, and thus restored after Ben was absorbed too? Was Azmuth simply lying about the failsafe to teach Ben a lesson? It's unlikely there will ever be a true explanation to what happened beyond Rule of Symbolism.
  • Shock and Awe: The latest in a long line of electrokinetic aliens, and without a doubt the most powerful. He's the one who ends up defeating both the first and final Big Bads in Omniverse.
  • Spotlight-Stealing Squad:
    • Invoked. 11-year-old Ben was quite fond of this alien, using him constantly in the time between the original series and Alien Force, even when other aliens would have been a more logical choice. Lampshaded several times by Gwen:
      Gwen: Don't you ever get tired of that alien?
    • Deconstructed when it turned out using him too much might cause Ben to lose control over his other aliens. Then Malware took advantage of it and destroyed the form, devastating Ben.
    • Averted with present Ben, as he's only used Feedback sparingly since he regained him. Ironically, in "Max's Monster," just when Feedback was needed the most, Ben had trouble trying to transform into him.
  • Story-Breaker Power: His ability to absorb energy and fire it back often proves quite useful against Malware by reverting Malware's attacks. It's also emphasized after his return that Feedback's absorption powers are virtually limitless; he absorbed enough energy from the Helix to easily overpower Malware's Tachyon Cannon, and he can easily drain the energy out of Terroranchula!Phil, an opponent who feeds on electric energy himself. In the Grand Finale, he absorbs the entire blast of the Big Bang.
  • Super-Senses: Can smell radio waves, apparently via his antennae, as shown in "Clyde Five".
  • Suspiciously Similar Substitute: A downplayed one of Chromastone as both functioned as Ben's "energy absorption" aliens and both were also "killed" at one point in Ben's career, though Ben wasn't as devastated about Chromastone since he was busy fighting Vilgax.

    Gravattack 

Gravattack/Ultimate Gravattack (OV-03)

https://static.tvtropes.org/pmwiki/pub/images/gravattack.png
Click here to see Ultimate Gravattack as used by Albedo

Voiced by David Kaye

Ben's second new alien to be unlocked in Omniverse. Sampled from a Galilean from planet Keplorr, Gravattack is a small living planet with the ability to open itself in a more anthropomorphic form. He possesses his own orbit, which he has complete control over, granting him gravity powers.

Ben 23's version is named Orbit Man.


  • Evolution Power-Up / Super Mode: Gravattack is the only alien form introduced in Omniverse to gain an ultimate form. In his evolved state, he becomes bigger, his gravity powers have completely phased out his legs, and his torso merges with his mouth. He also gains these three orbiting "moons" that resemble Koffing, Derrick J. Wyatt's favorite Pokemon.
  • Genius Loci: He may not be as big as an actual planet (though he is still quite tall), but he's been classified as a "living planet," hence his gravity powers. The sphere in his stomach represents the molten core of a planet.
  • Gentle Giant: While not really planet-sized, he is still bigger than Four Arms. According to Max in "Food Around the Corner," Galileans are well-known for being wise and patient.
  • Gravity Master: As a living planet, he has his own orbit that he can manipulate at will, allowing him to control gravity. He can use it both manually, or go in planet mode and cause objects to gravitate around him.
  • Hoist by His Own Petard: Gravattack specializes in this by redirecting projectiles back at whoever fired them.
  • Logical Weakness: His powers of gravitational force makes him a potent threat to opponents, but this power is limited to weight only. As Albedo figured out, significantly changing one's individual shape and height, otherwise known as the amount of matter in an object, is enough to overwhelm Gravattack's orbit.
  • Mighty Glacier: In his standard form, he's bulky and not very fast on his feet, but is one of Ben's most powerful aliens.
  • Power Floats: When in planet form, he uses his gravitational field to float rather than roll.
  • Shockwave Stomp: His size and weight allow him to pull this off.
  • Story-Breaker Power: It's quite possible that he's not used terribly often due to the fact that his abilities amount to controlling gravity, which makes him much harder than most aliens to be defeated in a realistic fashion due to the fact that Ben could just make it hard for them to even move or launch them into space. "Food Around the Corner" required Ben to be Gravattack for most of the episode; said episode demonstrated that Gravattack's planetary core can be destabilized, resulting in a massive explosion, but this required flea-sized aliens to pull off and definitely isn't something that can be done on the fly. He also has a Logical Weakness that if an opponent significantly increases their mass, they can throw off his orbit, but not many enemies can do this besides other Omnitrix users.
  • Shout-Out: His Ultimate form is based on the Pokémon Geodude with a pair of satellites resembling Koffing.
  • Super-Strength: Expectable when you consider he is a vaguely human-sized anthropomorphic planet. Even while still figuring out his powers, he was able to hold his own against Fistrick's mecha in his debut.
  • Vocal Evolution: In "Vilgax Must Croak," his voice is not as deep as it was in "A Jolt from the Past."

    Gutrot 

Gutrot (OV-45)

https://static.tvtropes.org/pmwiki/pub/images/gutrot_official.png

Voiced by Rob Paulsen

Gutrot was sampled from an unknown species. His innards are comprised mostly of gaseous chemicals, which he can combine into a virtually limitless array of compounds and unleash them in gaseous form from the vents on his body.


  • Area of Effect: An actual limitation to his ability; when it can affect everyone around him, it includes his allies. Strong wind can also carry his gaseous chemicals away easily.
  • Chemistry Can Do Anything: So long as Ben has a vague idea of what he needs to do, he can come up with a chemical compound that fits the situation.
  • Fartillery: Given that he can generate and release any kind of gas he can imagine, this is essentially his power in a nutshell. When Animo first revealed what his powers were to Ben, the reactions from everyone around were... less than thrilled.
  • Friendly Fireproof: Averted; he cannot will the chemical gases to not affect his allies in the process.
  • Instant Expert: Instinctively knows how to form chemical compounds as necessary, including their names and specific effects. Points out that he has no idea how he knows this. This contrasts Chemistry normally being Ben's weaker subject.
  • Love Is in the Air: He can produce a cloud of pheromones powerful enough to affect a To'kustar.
  • Poisonous Person: Through the ability to manufacture basically any chemical compound.
  • Shout-Out:
    • His appearance and powers are based off of Koffing, Derrick J. Wyatt's favorite Pokémon. Much like Koffing, he's basically a living gas chamber that can expel gas attacks.
    • His voice and mannerisms, on the other hand, are a reference to Columbo. His first scene is basically a Homage to the show, where he tricks Animo into helping him by asking seemingly innocent questions and then saying Columbo's Character Catchphrase "there is one more thing..." and quickly turning the tables. He even does Peter Falk’s signature one-eyed squint.
  • Story-Breaker Power: Because Chemistry Can Do Anything, this form can defeat almost anything that breathes simply by spraying them with a gas to fit the current situation. He does need to make sure said certain chemical compounds won't reach those he doesn't wish to affect, though (such as his allies).
  • Super-Intelligence: A passive superpower. Along with chemical knowledge he casually discusses the implications of time loops and conversates about the reality of Tap on the Head induced amnesia.

    Kickin Hawk 

Kickin Hawk (OV-11)

https://static.tvtropes.org/pmwiki/pub/images/kickin_hawk.png

Voiced by Yuri Lowenthal

Kickin Hawk was sampled from Psyphon's alien henchman Liam during a confrontation in "Outbreak". A bird-like alien of unknown species, he possesses high physical abilities as well as a pair of natural blades on his two arms. Despite being of the same species as Liam, he looks very different from him. Word of God states that this is because the species has a very wide variety in plumage, and the king resembles a peacock.


  • Acrophobic Bird: Despite being based on a hawk, and being Ben's only bird-like transformation, he has no wings and cannot fly.
  • Blade Below the Shoulder: Liam, another member of his species, is seen with these, and Kickin Hawk has them, too.
  • Curb Stomp Cushion: He is the only transformation used against Master Kundo (a very experienced martial artist) that is able to make the latter fight seriously, even if he is still defeated easily.
  • Evil Is Bigger: Inverted; he is significantly taller and more muscular than Liam.
  • Good Counterpart: To Liam, a recurring Mook of the same species. In fact, Kickin Hawk was actually unlocked by Liam himself when he slammed down on the Omnitrix.
  • Hurricane Kick: In one episode, he was able to perform a breakdancing kick attack to repel Fistrick's army of Muroids.
  • Lightning Bruiser: He's strong, fast, and remarkably agile. He's recognized as Ben's greatest hand-to-hand fighter, and was the only one that could put up even something of a fight against Rook's Old Master Kundo.
  • Noble Bird of Prey: This hero form's name is a pun on "Chickenhawk", and he often screeches like a hawk, so he's likely intended to be one, rather than a chicken like Liam was.
  • Roundhouse Kick: His Signature Move in battle, with his kicks being able to strike with the force of a cannonball. As he puts it, he's a "foot-to-head" fighter.
  • Vocal Evolution: In “Collect This”, his voice has a higher pitch, making him sound more like Ben.
  • Weak, but Skilled: His strength is still superhuman, but compared to Four Arms, Rath, and Humungousaur, he relies less on brute strength and more on martial arts. In "Rook Tales," Ben even mentioned that Kickin' Hawk is his best hand-to-hand fighter.
  • Wrestler in All of Us: Like Rath, he comes prepackaged with wrestling moves along with his martial arts.

    Mole-Stache 

Mole-Stache (OV-11)

https://static.tvtropes.org/pmwiki/pub/images/mole_stache.png

Voiced by Yuri Lowenthal ("Outbreak") David Kaye ("Breakpoint")

One of the multiple aliens revealed in "Outbreak". Mole-Stache is a mole-like alien of unknown species. Few things are known about him, though, according to Ben, he is rather useless.


  • Beware the Silly Ones: He's one of, if not the absolute silliest alien in Ben's entire arsenal, but he can lay down quite the smackdown to anyone who underestimates him. He even managed to beat Vilgax with help from Skurd, albeit a younger version of him.
  • Call a Smeerp a "Rabbit": Ben refers to his species as looking like moles, but they look more like woodchucks or beavers than actual moles.
  • Elemental Punch: Skurd bestowed his 'stache with Maces made from Heatblast's body to give this effect.
  • Helicopter Hair: This is how he achieves flight.
  • Informed Flaw: Ben still describes Mole-Stache as "unsatisfactory" despite proving to actually be quite useful in combat. It's never explained why he still thinks this.
  • Joke Character: Initially introduced as useless. It takes him several seasons to finally figure out his powers, after which he becomes a Lethal Joke Character.
  • Lethal Joke Character: Turns out his mustache packs a wallop.
  • Prehensile Hair: Can use his mustache to, among other things, fly and punch people.
  • Quintessential British Gentleman: Speaks like this.
    Mole-Stache: I say, Mole-Stache? This is quite unprecedented!
  • Shapeshifter Weapon: So far we've seen his mustache shape itself into helicopter blades, a parachute, and fists.
  • Super-Strength: His mustache is strong enough to briefly lift a truck, although it's clearly a struggle for him.
  • Unexplained Accent: Suddenly has a British accent in "Breakpoint".
  • Wouldn't Hit a Girl: From a scene in "No Honor Among Bros", where he fought Yetta, that was cut for time:
    Mole-Stache: Now, ordinarily, I would never strike a lady, but I'm afraid you leave me no choice!

    Pesky Dust 

Pesky Dust (OV-11)

https://static.tvtropes.org/pmwiki/pub/images/pesky_dust.png

Voiced by Yuri Lowenthal (Outbreak), Tara Strong

Another of the many aliens revealed in "Outbreak". Pesky Dust is a fairy-like alien called a Nemuina.

Ben 23's version is named Nighty Knight.


  • Dream Walker / Dream Weaver: He can put people to sleep, then enter and manipulate their dreams.
  • The Dreaded: To Khyber of all people, who immediately freaks out when Ben accidentally turns into him. Since he refers Pesky Dust's species by name, it's likely he knows about how their abilities can be used for interrogation.
  • Dude Looks Like a Lady: Ben is male, but the alien looks female.
  • Expy: He's basically Tinker Bell if she were an alien.
  • Flight: He can fly with his butterfly wings.
  • Forced Sleep: He can spray dust that forces opponents, even near-omnipotent ones, to sleep.
  • Joke Character: Initially introduced as useless, but later shown to have a lot of purposes.
  • Lethal Joke Character: Once he's revealed to have Lotus-Eater Machine ability. Ben 23 wonders how Ben could possibly have considered him useless.
  • Lotus-Eater Machine: His power is a rare heroic example; he has the ability to put people to sleep, and then enter inside their dreams to manipulate them into revealing information.
  • Meaningful Name: His species name, Nemuina, is based on the Japanese word for "sleepy" (眠いな/Nemui na).
  • Our Fairies Are Different: Like most things in the show, he's of alien origin.
  • Shout-Out: His powers are similar to Butterfree and Jigglypuff from the Pokémon franchise. His butterfly design also gives him some resemblance to the former.
  • Tertiary Sexual Characteristics: Averted: he has long eyelashes, pink markings on his cheek and wings, wears a dress, and has a high-pitched shrilly voice, but he's still a male.
  • Verbal Tic: Makes a trilling sound whenever he speaks.
  • Winged Humanoid: He has butterfly wings that can fold up into a cloak, similar to Big Chill's moth wings.

    The Worst 

The Worst (OV-11)

https://static.tvtropes.org/pmwiki/pub/images/omniversetheworst.png

Voiced by Yuri Lowenthal (Outbreak) Dee Bradley Baker (No Honor Among Bros)

The Worst is an Atrocian with a pair of green underwear with white stripes on it. He was unlocked in "Outbreak".


  • Atrocious Alias: He's the only alien that Ben intentionally gave an unflattering name, out of frustration toward his general uselessness.
    Ben 23 (Toolboxx): Why'd you pick that lame-o alien? He's, like, the worst!
    Ben Prime (The Worst):: He's not like the worst. He is The Worst!
  • Blessed with Suck: He's indestructible, but can still feel pain.
  • Joke Character: He can't really accomplish anything. If the name didn't make it obvious, he's Ben's least favorite transformation as of Omniverse, and is the only alien in the series that Ben has never intentionally turned into.
  • Healing Factor: When Malice manages to punch a hole in him the wound promptly healed.
  • Not Completely Useless: Once he's revealed to be indestructible. He still can't do anything offensively, but can survive just about any attack, which gives him some use in very specific situations.
  • Stone Wall: He has zero combat ability, but his species is pretty much indestructible. He's actually effective at tanking, as he took a three-hour beating from an Appoplexian with not a mark to show for it before the latter fainted from exhaustion. In "Most Dangerous Game Show", a female of the species struts across lava like it's nothing.
  • Title Drop: Ben said that this alien was "The Worst" as a comment.
  • What Kind of Lame Power Is Heart, Anyway?: Being completely indestructible isn't usually this, but the fact that he's not immune to pain combined with his poor physical ability means there's really no reason to ever want to turn into The Worst. There are certain situations where he's Not Completely Useless, but essentially none where another alien couldn't do the same thing better.

    Toepick 

Toepick (OV-20)

https://static.tvtropes.org/pmwiki/pub/images/toepick_art.png

Voiced by Eric Bauza

Toepick is the Omnitrix's DNA sample of an unknown species from an unknown planet.

Ben 23's version is named Fright Face.


  • Acid Attack: He can supposedly shoot acid from his fingertips, but this has never been demonstrated on-screen.
  • Ascended Extra: Was briefly mentioned in the original series episode "Ken 10"; He was one of the aliens on Ken's Omnitrix, but Ken had Ben swap him out for Grey Matter, as Toepick was too disgusting for his taste. He finally makes an appearance in the episode "Special Delivery" in Omniverse.
  • Bad Powers, Good People: Despite the gross, disturbing effects of his powers, he's used for good. For the same reason, though, he seems to largely be a last resort against threats Ben can't take down through other means.
  • Brown Note: Just seeing his face inflicts either a terror response, madness, nausea, or all three on just about anyone who sees it. During his debut, he scares Psyphon so badly that the color actually drains out of him.
  • Creepy Good: He doesn't look scary at first, but the effect of people seeing his face is... disturbing. To better put it: Toepick's face scared the hell out of Psyphon.
  • The Dreaded: His literal power when he opens the cage on his head.
  • Heart Is an Awesome Power: Kenny was not fond of this alien. It was never explained exactly what he does, but Toepick was the one alien he couldn't even tolerate being in his Omnitrix. When he's finally shown for real in Omniverse, it turns out his powers are actually extremely useful, if very unpleasant.
  • Logical Weakness: His horrifying face is useless against beings without sight or emotions. It’s also incapable of affecting beings to whom it is not an unknowable horror such as Paradox or Dagon.
  • Nightmare Face: One look at his face will immediately leave characters literally paralyzed or even sick with fear, weaponizing this. It's never directly shown to the audience, but the characters' terrified reactions speak for themselves.
  • Non-Indicative Name: His abilities don't have anything to do with his toes. Instead, they're based vaguely off of the statement that Toepick grosses Kenny out.
  • Please Keep Your Hat On: Like with NRG, the Omnitrix automatically supplies Toepick with additional gear to protect those around him: in his case, a mask covering his Nightmare Face. It can be traumatic to others if he takes it off.
  • Primal Fear: Derrick J. Wyatt has stated that Toepicks face taps into the primordial fears locked into the subconscious of all sapient beings as well as all primitive minds.
  • Required Secondary Powers: According to Derrick J. Wyatt his species has a “layered multiphasic eyesight” that coupled with bad eyesight stops them from being able to see their own or each other’s faces.
  • Shout-Out/Expy: To Yukk from the obscure 80s Hanna-Barbera cartoon Mighty Man and Yukk.
  • Story-Breaker Power: All three times he has appeared, he saved the day by merely standing in front of the villain. One of them was an accidental transformation, and Ben didn't even seem to realize who he was. However, given the disgusting nature of his powers, Ben doesn't seem to use him much unless he has to.
  • Take Our Word for It: His face is so hideous that it has to be hidden behind a cage-like mask. When it opens, it's so horrible that it isn't shown onscreen.
  • Vocal Evolution: In "Something Zombozo This Way Comes", he had a high-pitched voice. In "Cough It Up", he had a deep, wheezing voice.

    Ventrilosquid 
https://static.tvtropes.org/pmwiki/pub/images/ventrilosquid_no_background_1.png

    Walkatrout 

Walkatrout (OV-11)

https://static.tvtropes.org/pmwiki/pub/images/Walkatrout_1893.png
Voiced by: Yuri Lowenthal

Walkatrout was sampled from an Ickthyperambuloid. Ickthyperambuloids live on a planet with naturally occurring sidewalks. Their king walks briskly.

They are also known as Walkatrouts, an inoffensive slang term.


  • A Dog Named "Dog": His name is a slang term for his species. The name was first used by Driba in "Outbreak" and adopted by Ben in later episodes.
  • Joke Character: He doesn't have any serious or practical use whatsoever. Every single appearance of his is purely used as a gag at his expense.
  • The Load: Even The Worst has more utility than him. Walkatrout is the only one of Ben's aliens to never have accomplished a single thing onscreen; the one time Ben intentionally transformed into him was so he could flush himself down the toilet, and he couldn't even do that. Skurd had to use Four Arms's strength to force him down.
  • Slippery Soap: His only "power" (besides having gills) is that his body is so slippery, no one can hold him.
  • Super Not-Drowning Skills: Being a fish, he can breathe underwater.

    Whampire 

Whampire (OV-48)

https://static.tvtropes.org/pmwiki/pub/images/whampire.png
Voiced by: John DiMaggio

Whampire is the Omnitrix's DNA sample of an extinct species called the Vladat, from Anur Vladias and Anur Transyl in the Anur System.

Anur Vladias was a vast, spike-filled, rocky, honeycombed network of underground cathedral cave crypts. The caverns plunge so deep into the planet's crust that they are cut off from any light. All life was purged from the world during the Vladat's extermination by their former slave species. Now, Anur Vladias is itself an undead planet. No life can exist there, not even the hardiest life, not Celstialsapiens, not Ectonurites, not water bears, not anything. So powerful is the undeath of the planet, merely being in its orbit will begin to drain the life force of the living.

The DNA sample was acquired in extraordinary circumstances when Zs'Skayr brought the Vladat DNA source Lord Transyl back to life by using the power he stole from the Alpha Rune.

Ben 23's version is named Bat-Dude.


  • Animorphism: He can transform into a bat.
  • Bad Powers, Good People/Dark Is Not Evil: It's still Ben, despite his Mind Control and Life Drain powers. He does have to resist the urge to use the latter, however.
  • Combo Platter Powers: Whampire can fly, have greater strength than average, creates sonic blasts, can mind control most life forms in the universe in two different ways, turn into a bat and a host of other tricks in a single versatile form. He just needs to avoid sunlight lest he explodes.
  • Flight: He can fly in his natural form and while transformed into a bat.
  • Good Counterpart: To Lord Transyl. While Transyl embraces his Horror Hunger and seeks to conquer the universe, Whampire is able to restrain his natural desire to feed upon others, and acts as a hero.
  • Horror Hunger: Like Lord Transyl, he has an intense desire to feed on other living beings. Immediately upon transforming, he attacked Hobble out of instinct. He even commented on this side-effect after swallowing a fly.
  • Hypnotic Eyes: Can use this in conjunction with (or instead of) his Corrupturas.
  • Last of His Kind: Vladats were hunted into extinction by the Transylians before Azmuth started collecting DNA for the Omnitrix.
  • Life Drain/Vampiric Draining: Like all Vladats, he can do this, though Ben tries to resist the urge to do so.
  • Logical Weakness: His Corrupturas won't work if they can't stick to an opponent's forehead. This provides several ways to avoid his mind control powers: phasing through them, blocking them, natural protection like the slimy mucus on Hobble's body, or wearing armor. Characters that could burn through them, such as a Pyronite, would also logically be immune.
  • Looks Like Orlok: Despite the overarching Dracula theme, he has no visible hair, long-clawed fingers, his mask resembles long pointed ears, and he doesn't have an Ominous Opera Cape. He seems to incorporate elements from both Dracula and Nosferatu.
  • Mind Control: Like his genetic donor, he can create Corrupturas.
  • Our Vampires Are Different: An alien vampire.
  • Shout-Out: His status as a heroic vampire-like creature is reminiscent of Morbius. The wing flaps under his arms also resemble the ones in Morbius' classic costume.
  • Super-Scream: He can produce a sonic blast powerful enough to launch an entire crowd off if he tries hard enough.
  • Super-Strength: Able to send a large mob of mind-controlled Anur Transyl denizens flying.
  • Story-Breaker Power: His Corrupturas can take control over any alien except for other Vladats, allowing Whampire to end conflicts rather quickly. Unfortunately, if Whampire times out, then so do his Corrupturas.
  • Punny Name: His name is a pun on his accent.
  • Vampire Vords: Has a stereotypical Transylvanian/Hungarian accent to reflect his vampire basis.
  • Vein-o-Vision: Sees this way, at least when hungry
  • Weakened by the Light: In "Blukic and Driba Go to Area 51", Ben accidentally transforms into Whampire, and nearly burns to death, running around in agony until Max taps the Omnitrix symbol, changing him into Four Arms.

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