Providence - The Consortium - The Pack - The Six - Rex's Old Gang - Others
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ZAG-RS
Voiced by: Grey DeLisle
A rogue AI based in space.
- A.I. Is a Crapshoot: Was created by Caesar to contain any rogue Nanites, now wants to destroy the world as a result.
- Big "NO!": First appearance in episode 5.
- Gone Horribly Right: It was created to contain any rogue Nanites and because all living creatures have rogue nanites inside them so...
- Manipulative Bitch: She's very good at getting humans to do what she wants, first tricking an entire colony of people into helping her build a Doomsday Device and in her second appearence hiding out in their robot buddy until they'd done everything she needed them to do.
- Not Quite Dead: Even if it showed up out of pretty much nowhere, this was pulled quite nicely in Gravity. Twice!
- Omnicidal Maniac: Has absolutely no problem killing all life on Earth (well except White Knight, who is uninfected) just to protect herself.
No-Face
"They are the before. The before forgot us. The before left us here. Left us in pain,"
Voiced by: Fred Tatasciore
- Alas, Poor Villain: In the beginning, all he wanted was to get out of the area in which he was imprisoned, unfortunately his plan to escape fails due to Rex's interference, causing sadness and depression to him.
- Bare-Fisted Monk: Aside from his ability to communicate with other Evos, he lacks any of the powers or advanced technologies employed by other villains. He still manages to be an extremely dangerous opponent by combining his EVO physicals with a vicious and highly coordinated fighting style.
- The Beast Master: He has the ability to control non-sapient Evos, also known as the entire bug jar.
- Call a Human a "Meatbag": Refers to humans as "The Before".
- Character Development: in his third appearance he learned how to become more pragmatic as a result of what happened in his second appearance.
- The Faceless: Until he got cured in the finale.
- Hair-Trigger Temper: Quickly loses it when someone gets between him and something he wants, be it revenge or freedom from the Bug Jar.
- Jerkass Has a Point: While No-Face may be an insane mutant bent on making humanity suffer, this isn't entirely unreasonable given his previous treatment by humanity. Considering that humanity abandoned him in the chaos of a collapsing city and trapped him in the ruins with no way of getting out, his attitude and mental instabilities are somewhat understandable.
- I Choose to Stay: After spending so long locked up in the Bug Jar, once he finally escapes, he eventually resigns to return home.
- Mission Control: Coordinates the other Evos in the Bug Jar to make them more effective.
- Multi-Armed and Dangerous: He has four arms.
- Not Used to Freedom: Likely the reason why he decides to return to the Bug Jar in final appearance.
- Offscreen Moment of Awesome: He manages to escape the Bug Jar during the events of Heroes United. But we don't learn this until later when he is shown to have been captured by providence following his escape.
- Only Sane by Comparison: He's the only Evo in the bug jar that retained basic sapience, but he is incredibly violent and insane.
- Rank Scales with Asskicking: His debut episode was one thing. When next he shows up, he takes on Rex and the Pack (separately) and was easily a better fighter than all of them. He's not an Evo to be taken lightly.
- Sealed Evil in a Can: He's trapped inside the Bug Jar. And he wants out!
- Villain Team-Up: Van Kleiss tries to orchestrate one with him. It fails. Happens again in "Enemies Mine", which worked better since all involved wanted Rex dead. Not that they succeeded, of course.
- Telepathy: How he controls the other Evos.
- Villain Decay: Despite those victories, in his third appearance, his skill has considerably diminished, Rex could beat him easily, and he only got a few good hits in, it might have been to show how good Rex has become as a fighter, but No-Face still put up a pitiful fight, and went down easily. In addition, when Cain said that he would kill Rex, No-Face did nothing about it, this clashes with his second appearance, where he went ballistic when Van Kleiss attempted to stop his vengeance against Rex! Though it’s possible he learned from that encounter and became more pragmatic as a result.
Hunter Cain
Voiced by: John Cena (debut), John DiMaggio
Hunter Cain is a vigilante who strongly dislikes EVOs and is one of Rex's enemies. Attempting to give Rex a bad reputation, Cain was exposed for cloning EVOs to build his own image to his followers. Since then, he made Rex a permanent target for his revenge, being labeled a nemesis of Rex.- Bald of Evil: With a scar on the top.
- Enemy Mine: The aptly named "Enemies Mine" has him working with other enemies of Rex. However, he turns on them at one point when it looks like he could kill Rex himself.
- Fantastic Racism: Hates all Evos after his own wife transformed into one.
- Hypocrite: Despite making it his goal to destroy EVOs, near the end of his debut episode, he admits that he created the ones that his men and Rex were currently fighting to discredit Rex and prove he was better. He also teams up with No-Face in a later episode, which Rex immediately calls him on. There's also his lack of regard for any non-Evo who gets in his way.
- I Call It "Vera": His BFG, Sweet Caroline. It's presumably named after his wife who turned EVO.
- Name of Cain: Although it's never stated how to spell it.
- It's Personal: His grudge against Rex and all other Evos.
- Not-So-Well-Intentioned Extremist: Wants people to see him as the hero, but it's clear he's a just a man consumed by hatred and paranoia looking for an excuse to hurt others.
- Shout-Out: He physically resembles Jason Voorhees.
- Spell My Name With An S: How are we supposed to spell his name, exactly? note
- Villain with Good Publicity: Very popular as shown in his debut episode until he's exposed for creating EVOs to gain said publicity.
- Would Hurt a Child: Especially if that child is an EVO.
Peter Meechum
Voiced by: Wil Wheaton
Dr.Peter Meechum is the father of Sarah Meechum and a scientist involved with the Nanite Project. Once an EVO, Peter had the power to "zombify" people that came in contact with him by a simple touch. He let himself be cured after Rex promised he'd rescue his daughter from Van Kleiss. He later reappeared as a scientist for Providence and Black Knight to resume the Nanite Project.- People Puppets: Peter Meechum, as an E.V.O, can activate the Nanites in anyone he touches, granting him control of their muscles, but not their minds. The one guy Providence captured who had been affected, though, was a remarkably good sport about it. The rest just keep quiet.
Gabriel Rylander
Voiced by: Brent Spiner
Dr. Gabriel Rylander was an evolutionary biologist and a leading expert in nanotechnology. He later worked on the Nanite Project along with other scientists before the Nanite Event.- His Name Is...: Rylander is impaled by Van Kleiss before he can spill Rex's backstory. While this doesn't kill Rylander, the effect is the same. What makes the use of this trope especially blatant is that Rex had just called him out for being so cryptic, and Rylander had apologized for it, realizing how long Rex had been desperately trying to find the answers, just in time for Van Kleiss to show up.
- I Did What I Hadto Do: he and the other scientists who were working on the nanite project are always saying that.
- Meaningful Name: Gabriel Rylander and Rafael Salazar, the two leading scientists on the nanite project, share their names with two archangels.
- Mecha-Mooks: Rylander uses these to defend his base in his first appearance.
Claire Bowman and Annie
Claire
Annie
Voiced by: Danica McKellar (Claire), Felicia Day (Annie)
A pair of "normal" teenage girls that go on double dates with Rex and Noah. They're both scientific prodigies and Annie has notoriously dangerous bad luck. So bad that Noah recruited Rex to go out with her because he didn't think anybody else could survive the experience.
- Actor Allusion:
- In "Operation: Wingman". Noah, who is played by Fred Savage, goes to prom with Claire, voiced by Danica McKellar, who is well-known for playing Savage's love interest Winnie Cooper in The Wonder Years
- Badass Normal: They do not have supernatural abilities, if you do not consider annie's instantaneous bad luck as an Super Power, yet they are able to act badass while facing very strong enemies.
- Born Unlucky: To supernatural degrees.
- Color-Coded for Your Convenience
- Cute Clumsy Girl: Annie, to the point where every guy that goes on a date with her ends up in the hospital.
- Genius Ditz: Claire and Annie are geniuses in science, physics, mathematics, and psychology
- The Jinx: Annie is also known as "the blonde widow" for this reason and has used this trait as a weapon on occasion.
- Lethal Klutz: Every normal boy who has gone on a date with Annie has ended up in hospital. It is speculated that second date would kill them.
- Teen Genius
- True Companions: The episode "Hermanos" reveals that Rex feels this way towards Noah, Annie and Claire
- Walking Disaster Area: Annie seems to be this for any boy that dates her.
- Why Did It Have to Be Snakes?: Claire's claustrophobia.
- Why Are You Looking at Me Like That?
- Wasn't That Fun?
- Wrench Wench: Annie and Claire do a lot of male chores like digging, driving a tank, shooting and farming.
Gatlocke
Allow me to introduce myself. I'm Gatlocke. Anarchist, struggling businessman, scoundrel... Okay, that's a lie, I'm not struggling, but let me ask you. Do you like rules? [...] Me neither.
Voiced by: Greg Ellis
Gatlocke is a modern-day pirate who attempted to steal a shipment of unstable nanites from Providence. He was captured and eventually arrested by Providence. Later, he broke out of prison to gain revenge on Rex, but ultimately failed.
- Affably Evil: Is surprisingly polite to his enemies even in battle.
- Berserk Button: Do not call him "common."
- Card-Carrying Villain: He is unabashedly this, and readily admits it.
- Cloudcuckoolander: He is...not normal.Rex: You are insane, you know that?
Gatlocke: Me? Gatlocke, insane? Frankly, I don't see it. - Desert Bandits: When he first appears Gatlocke is leading a band of Pirates in the desert attempting to hijack a shipment of unstable nanites.
- Evil Brit: Speaks with a clearly British accent.
- Equal-Opportunity Evil: There are no ladies in his gang. He thinks something needs to be done about that.
- Large Ham: Oh god, is this guy chewing the scenery... In fairness, he does seem to be aware of his hamminess, and enjoys it quite a bit, sort of like an in-universe example of Ham and Cheese...
- Laughably Evil: He is an absolute riot to watch.
- "Not So Different" Remark:Rex: I've got the unstable nanites right here! Back off or I'll send us all to Kingdom Come!
Gatlocke: You wouldn't dare!
Rex: Or would I? You said you and I are a lot alike...
Gatlocke: You would. - Not-So-Harmless Villain: Bizarre mannerisms and flamboyance aside, he's still a cybernetically-enhanced pirate and anarchist with absolutely no qualms about turning on his own men.
- Pirate: Desert variant, though he wonders if the spyglass is too cliche.
- Ironically, his voice actor portrays a non-pirate character in a famous movie series about pirates...
- Seinfeldian Conversation: Gatlocke enjoys side conversations with no actual point to them.
- Un Evil Laugh: He has a wicked sarcastic laugh.
- We Sell Everything: From the nanite trade to toilet tissues.
- Wolverine Claws: His cybernetic arm has a pair of retractable blades (though they're closer to X-23 Claws since there's only two blades as opposed to three).
- You Talk Too Much!:Rex: Can you stop talking for one second?!
Gatlocke: (Beat) How long was that?
Branden Moses
Voiced by: Nolan North
A famous scientist who’s seemingly discovered a cure for all EVOs. In reality, he’s a fraud who sells his EVO patients as Super Soldiers to the highest bidder.
- The Antichrist: Well, more like "The Anti-Moses", but same basic principle. Pretends to want to cure EVOs (supposedly freeing them of their condition, so to speak), but instead enslaves them, the opposite of what the actual Moses wanted and tried to do, which was to free slaves.
- Auction of Evil: Runs one where he sells incurable EVOs as Super Soldiers.
- Bitch in Sheep's Clothing: Promises a cure, but it turns out to be a scam.
- Faux Affably Evil: Pretends to be nice....until his true colors are revealed.
- Ironic Name: His last name is Moses....yet he enslaves others.
- Pragmatic Villainy: Motivation for profit aside, Moses did discover a way to cure incurables, but the process for curing is not only difficult, but incredibly dangerous that it could potentially kill someone if attempted, as the heroes themselves find out when they perform it. It's not so much for safety reasons as it is more about not wanting to take any risks that would tank his business and career.
- Superhuman Trafficking: He auctions off his patients as One Man Armies to various criminals.
Quarry
"Let me just say I abhor unnecessary violence. But this... is veeeeery necessary."
An EVO crime lord who Rex used to work for, prior to losing his memories.Voiced by: Mark Hamill
- And I Must Scream: Even shattering him apparently doesn't kill him. It does make any sort of communication difficult, though.
- Detachment Combat: In his third appearance, he can use his fist like a whip. This is apparently because of the injuries Van Kleiss inflicted on him.
- Faux Affably Evil: He puts up a friendly act, but he’s a ruthless manipulator who's only out for himself.
- Literally Shattered Lives: It's all but stated outright that Van Kleiss punished him for his betrayal by breaking his body apart. His new outfit is apparently the only thing holding him together. Taken a step further when Rex hits him with his spinning giant fist, outright shattering him into chunks.
- Rock Monster: His mutation turned him into living stone.
- Smug Snake: He is extremely arrogant and smug.
John Scarecrow
"You're your own worst enemy".
Voiced by: Andy Milder
John Scarecrow is a shape-shifting EVO who had conflicts with Rex's old gang and personal problems with Rex Salazar himself. He made an alliance with Black Knight and returned to get revenge on Rex by successfully infiltrating The Plant.
- A House Divided: Part of his Shapeshifter Guilt Trip tactics. It succeeds.
- Chekhov's Gunman: See Foreshadowing.
- Evil Is Petty: He actually succeeded in his mission of sending the data on the meta-nanites to Providence early on. The rest of his interactions with Rex and Co. was just for the sake of messing with Rex's head.
- Lean and Mean: Having the appearance of a scarecrow, this isn't surprising.
- Shapeshifter Guilt Trip: Loves to sprinkle this into his "The Reason You Suck" Speeches.
- Shout-Out: To the Batman villain Scarecrow. Both of their first names are John, and this one's last name is the same as the other's codename.
- Voluntary Shapeshifting: His main EVO ability.
Alpha
"I was misguided to place my trust in a father that did not want me. I never needed him. I simply needed the energy and means to do what I have always done: evolve."
Voiced by: Michael Emerson
Alpha is the original control nanite created by Cesar but sent to an empty dimension, where he started attempting to merge with organic lifeforms in his pursuit of a stable body. Unfortunately, that universe turned out to be the Null Void. He found a host and forced a return to Rex's world, accidentally taking Ben with him and setting up the crossover.- A.I. Is a Crapshoot: Making an artificially intelligent control nanite worked just about as well as one would expect it. Cesar seems to have a poor track record with this sort of thing.
- Big Bad: of Ben 10/Generator Rex: Heroes United
- Big Red Devil: Other than the mechanical form he first appears in, all his forms are quite demonic in appearance, getting even more so as he transforms into more powerful forms.
- Evil Counterpart: To Rex's Omega Nanite.
- Healing Factor: So long as he has nanites to spare, the bodies he creates can regenerate nearly any damage in seconds. Becomes capable of regenerating without limit once he absorbs Rex's Omega Nanite, which can create nanites.
- Horror Hunger: Like Van Kleiss, he absorbs nanites from Evos to sustain himself. However, he reduces his victims to dust.
- Implacable Man: No matter what you hit him with, he just keeps coming and can regenerate from nearly anything. The only way to truly stop him is to target and somehow hit the one tiny Nanite in his entire body that's actually him.
- Machine Monotone: Constantly speaks with one.
- One-Winged Angel: Three times. First after absorbing all the Nanites in the Bug Jar to turn into a hulking monster. He then copies the Ultimatrix, allowing him to turn into monster versions of Ben's aliens, but Rex manages to cancel that. He finally absorbs Rex's Omega Nanite to transform into the gigantic Alpha Omega.
- Personof Mass Destruction: Is outright stated to be capable of single-handedly destroying the world.
- Psychopathic Manchild: Is rather child-like in his mannerisms and speech, speaking to Cesar, his creator like a child seeking its parent's approval and guidance. He's also extremely dangerous and has no regard for life in any sense of the word. While he gradually gets more mature as he evolves, traits of the man-child part are still there, and he gets much more psychotic.
- Psycho Prototype: The prototype control Nanite, and is a monstrous, psychopathic entity.
- Sealed Evil in a Can: Was supposed to be imprisoned in an empty dimension where he couldn't do any damage, but it turned out it was the Null Void and he escaped. Rex and Ben defeat him and imprison him in an extremely dense sphere, which Ben then leaves in the Null Void for good measure...But the ending implies he's going to escape anyway.
- Super Prototype: Of the Nanites; he's not called Alpha for nothing.
- Sentient Phlebotinum: Is a sentient nanite. Anybody he creates is normally composed of a swarm of absorbed nanites as well.
- Technopath: Like Rex, he can manipulate machines by touch. The first body he shows up in was apparently a mechanical Null Void prisoner he merged with.
- Voice of the Legion: After going One-Winged Angel.
