History Characters / Ben10VillainsOriginalSeries

* FlatCharacter: Like the Loboan, the Mummy is completely mute, and his entire character is defined by being a loyal servant to Zs'Skayr.

* FlatCharacter: The Loboan never speaks and doesn't display any personality beyond being loyal to Z'skayr.

* FlatCharacter: Like the Loboan, the Mummy is completely mute and his entire character is defined by loyally serving Z'skayr.

%%ZeroContextExamples are not allowed on wiki pages. All such examples have been commented out. Please add proper context before uncommenting them; "See Trope X" is not considered context. Thank you.

[[center:[[WMG:[-''Characters/Ben10'' [[Characters/Ben10 franchise character index]]\\
[[Characters/Ben10MainCharacters Main Characters]] ([[Characters/Ben10BenTennyson Ben Tennyson]]) | [[Characters/Ben10OmnitrixAliens Omnitrix Aliens]]\\
Villains premiering in: '''The Original Series''' ([[Characters/Ben10Vilgax Vilgax]], [[Characters/Ben10ForeverKnights Forever Knights]]) | [[Characters/Ben10VillainsAlienForce Alien Force]] | [[Characters/Ben10VillainsUltimateAlien Ultimate Alien]] | [[Characters/Ben10VillainsOmniverse Omniverse]] | [[Characters/Ben10VillainsSpecials The Specials]] | [[Characters/Ben10Villains2016Series The 2016 series]]\\
[[Characters/Ben10SupportingCharacters Supporting Characters]]-]]]]]

A character subpage for Characters/Ben10Villains that debut in [[WesternAnimation/Ben10 the original series]].
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->'''Voiced by:''' Creator/MichaelReisz (first appearance), Creator/CharlieSchlatter (remainder of Original Series), Creator/GregCipes (''Omniverse'' and Reboot)

[[AC:Reboot Series]]
[[quoteright:350:https://static.tvtropes.org/pmwiki/pub/images/reboot_kevin.png]]

* AdaptationalBadass: Not him (see below), but the Antitrix's version of Grey Matter, Dark Matter: he is much taller than Ben's, strong enough to hurt Four Arms and capable to create some kind of crystal-like substance to form weapons and trap opponents.
* AdaptationalHeroism: The original Kevin was an AxCrazy EnfanteTerrible, whereas this one is mostly a bully and is capable of being reasoned with, even helping Ben and Gwen out on occasion. He still shows a willingness to kill Ben, but ''only'' Ben.
* AdaptationalIntelligence: The old Kevin was a good mechanic as a teenager; ''this'' Kevin, as an 11-year-old no less, is able to build a device similar to the Omnitrix following a dream he had.
* AdaptationalJerkass: But by the same token, the original Kevin's villainy resulted from a combination of [[FreudianExcuse being bullied and treated as a freak due to his powers]] and [[ThisIsYourBrainOnEvil a side effect of his powers making him psychotic when misused]]. This version of Kevin doesn't have any insanity-causing power, instead using his own Omnitrix, and he ''is'' himself a petty bully who takes pleasure in inflicting misery to others.
* AdaptationalSuperpowerChange: Instead of absorption powers, he wields a knock-off Omnitrix.
* AdaptationalWimp: [[DownplayedTrope A minor example]], he lacks his powers from the Classic Continuity, but unfortunately for Ben, [[GadgeteerGenius that doesn't mean he isn't a threat]].
* AntiVillain: He's not without his better qualities, and even at his worst one can certainly understand the pain that is motivating his actions.
* AscendedExtra: Somewhat {{Downplayed}}. While the Classic Kevin 11 was an important villain, he didn't necessarily appear too often, contrary to how some older fans might remember it. Even his final appearance was just a quick cameo in Ben's dream. In the reboot, however, he has now topped Vilgax as the most [[SpotlightStealingSquad frequently recurring antagonist]], making at least 32 episodic appearances and appearing in TheMovie. The higher-ups demanding 12 extra episodes featuring Kevin in Season 3 only further emphasize this trope. This oversaturation is somewhat fixed in Season 4, where several of his appearances are quick cameos and he generally doesn't have much substance to his appearances outside of the GrandFinale [[TheMovie movie]].
* ArchEnemy: He considers himself this to Ben.
* BerserkButton: Kevin gets ''very'' angry in "Introducing Kevin 11" when Ben points out that he, unlike Kevin, at least ''has'' people he can run to for help. His lack of friends or attentive family members clearly hurts him more than he lets on.
** In general, he hates being reminded he's alone. Say the wrong thing about his situation, he can go anywhere from defensive to outright attacking anyone who crosses his path. He also doesn't like being compared to Ben.
* BigBadEnsemble: With the Forever Knight in Season 3 after refusing [[WeCanRuleTogether his offer to join him]]. [[spoiler:At least until "Introducing Kevin 11", where he officially joins him due to [[GreenEyedMonster his jealousy towards Ben]].]]
* BodyHorror: In "Which Watch" Charmcaster uses a spell on his Antitrix, causing the device to use the DNA of all the 11 aliens on Kevin and mutating him in a grotesque amalgam of body parts, just like the Kevin from the original series.
* TheBully: He was Ben's worst bully at school, even worse than Cash and JT.
* CharacterDevelopment: In Season 4, while he's still TheRival to Ben, he's become a lot more mellowed out in his demeanor after [[spoiler:returning from being lost in the timestream for a long time]].
* CompositeCharacter: His appearance takes after Kevin from the original series and his role as Ben's Omnitrix-wielding rival takes after Albedo. He also is now in the role of Ben's old school bully previously filled by J.T. and Cash. The dynamic being developed between him and the Forever Knights also calls to mind Kevin and Servantis' dynamic from ''Omniverse''.
** WordOfGod is that his versions of Ben's aliens are this with other Omnitrix aliens from the classic continuity, though the exact hybrids are unknown.
* DemotedToDragon: Eventually joins the Forever Knight.
* DemotedToExtra: Kevin was so important to Season 3 that additional episodes were ordered for it under the mandate that he be included in them. In Season 4, he doesn't make nearly as much appearances, and a few that he does are just brief cameos. He does have a major role in TheMovie serving as the season's finale, though.
* EasilyForgiven: [[spoiler:Beyond their childish EvilerThanThou rivalry, Charmcaster works together fine with Kevin in "Roundabout", never bringing up that he was inadvertently the one who destroyed her spellbook in "Which Watch" or that he caused her defeat in "What Rhymes with Omnitrix?". Even him destroying her new power source just gets her comedically miffed rather than truly angry.]]
* EnemyMine: There are many instances of it in the extra ordered episodes of Season 3, and in "Roundabout: Part 2", [[spoiler:he ultimately teams up with Ben and Gwen against the Forever Knight when he realizes that their personal interests are incompatible and that the Forever Knight never truly believed that he was stronger than Ben. It also happens in Season 4, with Kevin more open to it at this point.]]
* EvilCounterpart: Once again is this to Ben, this time with his own Omnitrix.
* EvilerThanThou: He and Charmcaster seem to have a mild rivalry concerning this, with both insisting that they are the more capable villain.
* GeniusBruiser: Apparently, he is a skilled mechanic, seeing as he was able to create the Antitrix.
* GreenEyedMonster: "Introducing Kevin 11" reveals that part of his hate for Ben comes from the fact that Ben has a supporting family, unlike him.
* HeelFaceRevolvingDoor: Following the originally ordered episodes of Season 3 where he was part of a BigBadEnsemble, the extra ordered episodes of Season 3 revolve around Kevin's constantly flip-flopping morality as he begins falling between being an AntiHero and being an AntiVillain. By Season 4, though, he's more of a solid AntiHero who [[TheRival simply insists on not getting along with Ben and trying to beat him at everything, including heroism.]] [[spoiler: This status persists even in Ben 10,000's future, where his insistence on competing with Ben causes him to get permanently stuck in an alien form of his own making but he is still willing to join fights for the greater good.]]
* HeroicSacrifice: [[spoiler:Allows himself to get lost through time in order to defeat the Forever Knight and allow Ben and Gwen to return to the present in "Roundabout: Part 2".]]
* HybridMonster: WordOfGod is that all of Kevin's Antitrix aliens are mixes of two different species, presumably due to the Antitrix being a FlawedPrototype.
* {{Hypocrite}}: In "Which Watch", Kevin dismisses Charmcaster's petty grudge against Gwen as "stupid drama". All while continuing to take his own petty grudge against Ben completely seriously.
* ISurrenderSuckers: In "Buggy Out" he found himself being overwhelmed by Rath, so he pretended to surrender (as well as sweet-talking Ben), before sucker-punching him with Hot Shot's flame.
* {{Jerkass}}: He loves to make people miserable ForTheEvulz. As the show goes on, he swings between JerkWithAHeartOfGold and JerkWithAHeartOfJerk regularly.
* LackOfEmpathy: While not the sociopath that his Original Series counterpart was, this Kevin still suffers from this. The show's staff have said that this is the main thing setting Kevin apart from Ben: Ben will feel regret when he's messed up and apologize for it, whereas Kevin is largely incapable of doing the same.
* MistakenIdentity: Because of his watch, expect someone to mistake him for Ben or a relative of his. Taken up to eleven when he and Ben lose memories and swap phones, leading them to read each other's diaries and think they're each other.
* MythologyGag: At the end of "Which Watch", Ben says "Way to go, team!" to himself, Gwen and Kevin, who were a team in ''Alien Force'' and ''Ultimate Alien''. Cue Kevin angrily shoving Ben away, insisting they are ''not'' a team and that he'll be back to destroy him later. [[spoiler:Happens again in "Roundabout: Part 2", where despite working with them and making a HeroicSacrifice for them, he insists that he is still their enemy and will ultimately be the one to destroy them.]]
* NoGoodDeedGoesUnpunished: In TheMovie, he comes the closest to a full-on HeelFaceTurn as he has ever had. As a result, he gets put through the wringer over and over again, and having his fears of inadequacy especially when compared to Ben reinforced stronger than ever before.
* NominalHero: Many times in the additional episodes ordered for Season 3, he ends up playing the hero either against his will or because he has a selfish objective to be gained in doing so.
* TheOnlyOneAllowedToDefeatYou: He's furious when Charmcaster controls him to try to kill Ben in "Which Watch", because if it's under her control then it doesn't really count as ''him'' getting to do it. [[spoiler:He also protests her trying to kill Gwen in "Roundabout" by saying that if anyone gets to kill her, it'll be him, although in this is just a cover for his PrecociousCrush on her.]]
* ParentalNeglect: He is the victim of this, as shown in "You Remind Me of Someone".
* PetTheDog: He helps Ben and Gwen in "Franken-Fight", even parting ways with them on peaceful terms for once.
** He also ends up working together with Ben in "Four by Four", even [[TakingTheBullet taking a laser tag bullet for him]], although he insists it was for just his own benefit.
** At the end of "Introducing Kevin 11", he helps Ben save innocent people from a collapsing building since he doesn't want people not involved in he and Ben's feud to get hurt (hence why he knocks the building onto Ben once the people are safe).
* PrecociousCrush: As shown in "Franken-Fight", he has a one-sided crush on Gwen. As we see later on, [[SheIsNotMyGirlfriend he vehemently denies it]] in front of either of the Tennyson cousins.
* RedemptionEqualsDeath: [[spoiler:Well, in this case it equals getting lost in a time portal, and he stubbornly insists it isn't a redemption. And he was right, as he finds his way back to the present in Season 4 and goes right back to causing trouble, albeit with less intense of an attitude as he had before.]]
* RedemptionRejection: Like in the original show, he does this frequently, as his stubborn pride and hatred of Ben is just too strong. [[spoiler:He even makes a HeroicSacrifice while still insisting he's "the baddest around".]]
* RememberTheNewGuy: He is introduced as someone Ben knows from school, but neither Gwen nor the audience are familiar with.
* TheRival: To Ben. He is even described as such in official material.
* RunningGag: Some season 3 episodes has some of the villains describe him as "emo Ben" due to having a watch with aliens like Ben but being overall DarkerAndEdgier, much to Kevin's chagrin.
* ShoutOut: Now that he has been fleshed out more as a rival to Ben rather than a legitimate villain, the dynamic between the two is quite reminiscent of Bugs Bunny and Daffy Duck.
* SheIsNotMyGirlfriend: If anyone dares to suggest that he has a crush on Gwen, which he does, he will swear up and down that he doesn't.
* SourOutsideSadInside: He may be a {{Jerkass}} bully, but deep down he's also a lonely kid.
* TroublingUnchildlikeBehavior: While not AxCrazy in general like in the original show, this version of Kevin has still made it clear that he'd have no qualms killing his rival Ben. He also claims he'd be fine killing Gwen, but in that case [[SheIsNotMyGirlfriend he's obviously in denial]].
* {{Unishment}}: [[spoiler: In ''Ben 10,010'', continuing to tamper with alien DNA in order to one-up Ben caused him to become trapped in the form of Humangoraptor, his answer to Ben's Humungosaur form, for several years, with no clear endpoint in sight. But given that this mean's he's now a giant, super-strong humanoid dinosaur, Kevin isn't exactly bothered by his condition.]]
* UngratefulBastard: A recurring trend with him is that any time Ben helps him or saves his life, it only makes him hate Ben ''more'' because he can't stand seeming weaker than him. The most blatant example is in "Buggy Out", where Ben saves Kevin from the angry Forever Knight, only for Kevin to willingly go back to the Knight at the end of the episode and offer up a way to use Ben's beloved family members against him.
* UnManlySecret: "Xingo-Nation" reveals that he's a fan of [[ShowWithinAShow Lucky Girl]], though he doesn't like people to know that.
* UnskilledButStrong: His modifications to his alien forms makes them more powerful, but Kevin still needs more practice. Likewise with his aliens; they do have additional features and strengths the originals don't but they also come with a drawback of not being that alien. Dark Matter for instance is much stronger than Grey Matter, but it's not quite as smart, and its larger size makes it easier to hit compared to Grey Matter.
* UnwittingPawn: [[spoiler: To Vilgax. The dream showing him how to build the Antitrix was sent to him by Vilgax, and Vilgax always intended to take it from him once he escaped the Null Void.]]
* VillainsOutShopping: In "Four By Four" he simply wants to enjoy a good game of Lazer Tag. It takes him a while to convince Ben he is not stalking and planning to attack him for once. This kind of incident happens more often with him in the additionally ordered episodes of Season 3, and a few in Season 4.
* WildCard: He can cause trouble, help to fix trouble, or both in any given order. Ben even lampshades in "Bottomless Ben" it by saying he will never be able to understand Kevin given how much his behavior keeps changing.
* WouldHitAGirl: As we see with his fight with Gwen in "Roundabout", he doesn't discriminate by gender when it comes to how ruthless he can be in dealing with his opponents. He also attempts to fight Charmcaster alongside Ben in "What Rhymes with Omnitrix?", but it [[CurbStompBattle doesn't go well for them]].
* YouAreBetterThanYouThinkYouAre: Gwen and Grandpa Max tell him this in TheMovie to convince him to help them.

[[AC:Reboot Series]]
[[quoteright:350:https://static.tvtropes.org/pmwiki/pub/images/rebootanimo.png]]

* BodyHorror: After he injects himself with the alien DNA from the Omnitrix, the various parts of his body starts fluctuating between all Ben's aliens, giving him briefly a look not so different from the original Kevin.
* FreudianExcuse: He loved his brilliant veterinarian father and wanted to live up to his legacy.
* FriendlyEnemy: Surprisingly can be this from time to time - despite his hatred for Ben, he works together with him very well in "Animorphisis", and actually allows Gwen to give him some psychiatric help in "Chicken Nuggets of Wisdom" and even thanks her for it as he's being escorted to prison.
* HisOwnWorstEnemy: During his therapy session with Gwen in "Chicken Nuggets of Wisdom" [[DiscussedTrope he considers]] if the reason [[EvilGloating he is always explaining his plans out loud]] is because he deep down wants to be stopped.
* JumpingOffTheSlipperySlope: His obsessive desire to live up to his father's work caused him to become more amoral and unhinged.
* PantheraAwesome: After the BodyHorror phase, he transforms into one of Ben's aliens... [[spoiler:Rath]].
* ParentalNeglect: He dearly loved his father, but he feels his parents were never proud of him.
* {{Revenge}}: He hates Ben for destroying his finest creation and swears undying vengeance upon him as a result.
* TookALevelInBadass: After transforming into [[spoiler:Rath]] by injecting himself with the stolen alien DNA, he is able to land some blows to Vilgax, and almost kills Ben. [[spoiler:Since the effects were similar to Ben changing with the Omnitrix, [[AwesomessIsVolatile it only works for a few minutes]]]].
* UsedToBeASweetKid: He's shown in a photo as a humble science student alongside his father.
* VillainTeamUp: With Vigax in "Animorphosis". [[spoiler:After getting what he wanted, the alien betrayed him, leading to Animo to ally himself with Ben.]]

->'''Voiced by:''' Creator/KharyPayton (Original Series to ''Omniverse''), Creator/RobinAtkinDownes (Reboot)

[[AC:Reboot Series]]
[[quoteright:350:https://static.tvtropes.org/pmwiki/pub/images/hex_reboot.png]]

* AdaptationalDumbass: He's still as powerful as ever, but now easily duped and frightened.
* AdaptationPersonalityChange: From a ruthless and frightening sorcerer to a hammier, occasionally bumbling wizard.
* ArcVillain: Of "Ben Gen 10".
* AscendedExtra: All things considered, Hex was one of the lesser foes in the original continuity, whereas he is one of the most frequently recurring in this continuity. Makes sense considering he is largely separated from his [[SpotlightStealingSquad more popular niece]], Charmcaster.
* BeliefMakesYouStupid: His justified belief in magic makes him believe ''anything'', even that sleight of hand magic tricks are real magic or that zombie cosplayers are actual zombies.
* TheComicallySerious: He isn't ''trying'' to be funny, but he often can be all the same.
* EvilBrit: He has a British accent in this version.
* EvilSorcerer: Like he was in the original series.
* {{Expy}}: He resembles [[WesternAnimation/{{Aladdin}} Jafar]] in his demeanor and voice more than he does the original Hex.
* LargeHam: Despite being equivalent to the original show's Hex, this version is more like ''Omniverse'' in his theatrical demeanor.
* Really700YearsOld: "Creature Feature" reveals he has been around for centuries at the very least, and [[WordOfGod according to Kelly Turnbull]], [[TimeAbyss he's over 10,000 years old]]. He must bathe himself in a special pool of magic light every hundred years in order to survive.
* RedAndBlackAndEvilAllOver: This is his color scheme once again.
* ScaledUp: He turns into a giant snake in "Story, Board".
* UngratefulBastard: Played with in "Creature Feature" with Hex. Ben saves his life, and he stands down from turning on Ben as a result. But according to him, this is ''not'' out of gratitude - one of the laws of his magic is that he must obey [[IOweYouMyLife a life debt]]. He insists that next time they meet, the debt will have been paid and he won't hold back.
* UnrelatedInTheAdaptation: Subverted, he didn't appear to be Charmcaster's uncle in this version at first, but "What Rhymes with Omnitrix?" confirms that he is.
** In a less literal sense, he also has little to no connection to Gwen this time around either, being strictly one of Ben's enemies rather than Gwen's initial ArchEnemy.

->'''Voiced by:''' Creator/KariWahlgren (Original Series to ''Omniverse''), Creator/TaraStrong (Reboot)

* BreakoutVillain: Was initially introduced in "Tough Luck" as a sidekick for Hex. By ''Omniverse'', she had far more episodes, CharacterDevelopment and interactions with Gwen than Hex ever had; it was only when the 2016 reboot largely seperated the two from each other that Hex became nearly as prominent a character.

[[AC:Reboot Series]]
[[quoteright:350:https://static.tvtropes.org/pmwiki/pub/images/nucharmcaster.png]]

* AdaptationalBadass: Her magic in this series gives her a boost in her physical abilities. In "What Rhymes with Omnitrix?", Ben and Kevin both attack her as Humungousaur and Quad Smack, two large, muscular aliens... and she [[CurbStompBattle kicks their asses!]]
* AccidentalHero: She takes away with a spell Kevin in "Which Watch" just as he was about to kill Ben whose watch has timed out. She had no intention of saving him however: she was actually trying to kidnap Ben, wanting to use him against Gwen.
* AdaptationalHeroism: The original Charmcaster was more than happy to wreak havoc [[TheHedonist just because she could]], committing crimes that had nothing to do with the Tennysons. This version is more reserved and keeps her focus squarely on her rivalry with Gwen. A good example is in "Which Watch", when she informs Ben when he's risking causing an explosion and fire outbreak, and allows him to evacuate civilians from the building. Compare to the original show's "A Change of Face", where Charmcaster outright causes an explosion and fire outbreak in a building full of civilians without remorse.
* AdaptationOriginConnection: Rather than being Hex's niece, Charmcaster is now a normal girl who became magical due to buying Hex's spellbook, which only ended up being put on the market thanks to Ben and Gwen defeating Hex in "Freaky Gwen Ben". But as of "What Rhymes with Omnitrix?", it then turned out she ''is'' Hex's niece after all.
* AgeLift: A mild case, but given her design she seems to be a few years younger than her 15-year-old counterpart from the original show.
* AntiVillain: This version of Charmcaster is a truly sympathetic character from her introduction, particularly due to the new origin she is given.
* ArchEnemy: To Gwen, of course. Her debut episode even ends with Gwen feeling both happy and concerned that she's gained one, and is even titled "Gwen's Arch-enemy" in German.
* BeCarefulWhatYouWishFor: Charmcaster swaps places with Gwen in "Charm School's Out" in order to ruin Gwen's supposedly perfect life. Grandpa Max ends up making her try to fix an absurdly large and complicated radio, which is such a hassle for her that she re-thinks her view of Gwen's life.
-->'''Charmcaster:''' I cannot ''believe'' he'd make Gwen do this!
* BerserkButton: Do ''not'' call her a nerd, a reminder of what she was before she became a sorceress. Gwen in general is also this for her, since she reminds her of her past self and yet is somehow more successful in life.
* BreakingSpeech: Gives on to Kevin in "Which Watch", shaking his self-confidence so that he's more liable to join the Forever Knight in the future.
* BrokenBird: She had a lonely background, and at the end of her debut it only gets worse as she notes that she's learned that she doesn't need anyone.
* BlackMagicianGirl: And a frighteningly skilled one, at that. Even Ben and Gwen are freaked out by her magic powers.
* CastingGag: Coupled with her new characterization of being more book-loving and prone to stress-induced [[FreakOut freak-outs]], Tara Strong voicing her makes her come off as a villainous version of [[WesternAnimation/MyLittlePonyFriendshipIsMagic Twilight Sparkle]].
* DemotedToExtra: Classic Charmcaster became one of ''the'' most central antagonists in the series, pretty much overshadowing her uncle completely. Here, all things considered, she isn't quite as prominent, often playing second fiddle to other villains like Kevin or the Forever Knight. Even her iconic rivalry with Gwen is largely one-sided on her part and gradually given less focus this time.
* DiscardAndDraw: After losing her spellbook she gains a rune necklace from her uncle that works differently. She finds she has to read Kevin's poetry which the necklace translates into incantations for spells. At the end of the episode where it appeared she loses even that but still manages to conjure a portal by wishing for it.
* EarlyBirdCameo: [[spoiler:She turns out to be the fangirl that approached Michael Morningstar in his first appearance.]]
* EasilyForgiven: She put Kevin under her control, gave him a BreakingSpeech, and generally caused him a lot of grief in "Which Watch". She gives him even more in "What Rhymes With Omnitrix?". [[spoiler:He doesn't bring any of this up at all in "Roundabout" and has no qualms working with her. Even when he stops her from killing the girl he has a crush on, he's more comedically miffed than angry and it's played more as part of their childish EvilerThanThou rivalry.]]
* EvilerThanThou: She and Kevin seem to have a mild rivalry concerning this, with both insisting that they are the more capable villain.
* EvilIsPetty: In "Which Watch", her main objective is to destroy a space camp just because Gwen enjoys it so much.
* FromNobodyToNightmare: Charmcaster was an awkward, nerdy girl with low self-confidence until she gained magical powers from Hex's spellbook and developing a new, aggressive goth-like appearance and attitude.
* GreenEyedMonster: In "Charm School's Out", she is shown to be envious of Gwen's "perfect life" and swaps places with her in order to ruin it for her, [[BeCarefulWhatYouWishFor only to find out it's not as perfect as she thought]].
* {{Hypocrite}}: In "Which Watch", she demeans Kevin as thinking he's more important than he is and that without his watch, he's nothing. Says the girl whose whole self-esteem hinges on a book.
* IHatePastMe: She hates Heather, the "weak" nerdy girl she used to be, and the source of her rivalry with Gwen in this version is because she reminds her of her past self and yet somehow is able to one-up her, thus defeating Gwen will be the only way she can prove her reinvention as "Charmcaster" is justified.
* InferioritySuperiorityComplex: It's an even bigger part of her character in this show than it was in the original, and what drives her rivalry with Gwen.
* JumpingOffTheSlipperySlope: In "What Rhymes with Omnitrix?", she has become so hateful of Gwen that she actually attempts to harm innocent people in order to get to her, which was something she previously was above doing. Gwen calls her out at the end of the episode by saying that she should know better than to devalue others like playthings, as [[YouAreWhatYouHate she knows how that feels]].
* MirrorCharacter:
** Her and Kevin's squabbling in "Which Watch" and "What Rhymes with Omnitrix?" highlights their similarities - both arrogant, both immature, obsessed with defeating their Tennyson rival, and both actually feeling like they'd be nothing without a certain item (Kevin's watch and Charmcaster's book and amulet respectively.)
** She and Gwen also qualify, not so much in regards to how Charmcaster is now but to how she ''used'' to be, which is [[IHatePastMe what fuels Charmcaster's hatred of Gwen]].
* MysticalWhiteHair: She wouldn't be Charmcaster without it.
* MythologyGag: Her real name in this continuity is Heather. In the classic continuity, this is the name Darkstar mistakenly called her when asked if he remembered her true name, which was Hope.
* NobleDemon: Has definite shades of this - see PetTheDog below.
* NotSoHarmlessVillain: Despite possessing very powerful magic, Charmcaster doesn't really come off as particularly threatening in her first few appearances. Then she has her spellbook traded out for a magical necklace, which leads to her becoming more ruthless and dangerous of an opponent.
* PetTheDog:
** After trapping Michael in a book, she has an easy opportunity to eliminate Gwen, who is powerless, and Ben, whose Omnitrix has timed out. Instead, she leaves them alone as thanks for saving her from Michael, albeit with the declaration that they will be enemies the next time they meet.
** In "Which Watch", she actually tells Ben about the danger of mixing Stinkfly's goop with Kevin's fire and lets him evacuate the innocent civilians from the building, as she only wants to destroy the Tennysons and not anyone else.
* TheRival: To Gwen, as is the norm.
* TheSmurfettePrinciple: [[spoiler: She's the only girl in the Forever Knight's team in "Roundabout".]]
* SourOutsideSadInside: As hostile and nasty as she behaves, the sense of insecurity and self-loathing she has for her old "weak" self is palpable in everything she does.
* ThatManIsDead: After Michael is exposed as not caring about her, he tries to worm his way out of punishment, calling her by her real name of Heather in the process. Her response is an angry "My name...is CHARMCASTER!"
* TookALevelInBadass: First when she gains magic powers, and then again when she finally sees Michael for what he is. [[spoiler:She takes another one when she trades her damaged book out for a magic rune, which boosts her power and causes her to be more willing to get her own hands dirty as opposed to controlling other things or people to do it for her. By "What Rhymes with Omnitrix?", she puts both Ben ''and'' Kevin on the receiving end of a CurbStompBattle with her magic.]]
* UngratefulBastard: PlayedWith - she leaves Ben and Gwen alone because she ''is'' grateful for Gwen saving her from Michael - but that gratitude is also ''part'' of why she declares herself TheRival to Gwen and vows to defeat her if they meet again since it's a reminder of how weak she was in the situation and she can't stand that.
* TheUnfettered: [[spoiler:When she obtains a magic rune necklace, she loses any restraint and uses its magic power with reckless abandon, especially to attempt to eliminate Gwen.]]
* UnrelatedInTheAdaptation: Subverted, this version of Charmcaster didn't seem to be Hex's niece like the original version, but "What Rhymes with Omnitrix?" confirms that she actually is.
* VillainsOutShopping: In "What Rhymes with Omnitrix?", she is attending a poetry reading without any ulterior motives, and only ends up causing trouble when the sight of Gwen triggers her BerserkButton.
* WhatTheHellHero: To Grandpa Max in "Charm School's Out", asking him what kind of grandfather makes a child fix an absurdly complicated RV radio. She sounds legitimately offended on Gwen's behalf.
* YouAreWhatYouHate: Gwen calls her out in "What Rhymes with Omnitrix?", saying that she shouldn't let her anger consume her to the point where she's using others as playthings, since she knows how that feels: Michael did it to her. But since this valid point comes from Gwen, Charmcaster ignores it.

->Acid Breath voiced by Creator/DeeBradleyBaker (Original Series & ''Omniverse''), Creator/JoshKeaton (Reboot)
->Frightwig voiced by Creator/CreeSummer (Original Series & ''Omniverse''), Creator/JessicaDiCicco (Reboot)
->Thumbskull voiced by Jeff Doucette (Original Series), Creator/DavidKaye (''Omniverse''), Creator/JohnDimaggio (Reboot)

* AdaptationalBadass: In the Classic Continuity, they were easily kicked around by Ben in every encounter they had. In the Reboot, they are well-coordinated enough to give Four Arms a good fight.
* AgeLift: In the reboot, Acid Breath is 16 years old, when he was much older in the original continuity.

* FlatCharacter: At least in the original continuity. Compared to most of the RoguesGallery, the freaks have very little depth or development. They're characterized as greedy thugs who occasionally show up working for a more powerful villain, get taken down easily, and that's about it.

** Averted in the Reboot. See AdaptationalBadass above.

* RealMenWearPink: The reboot episode "Vote Zambozo" shows that Thumbskull was planning to use his part of the loot to go to a spa and have the nail-like crest on his head manicured.
* ScrewThisImOuttaHere: In the reboot. After realizing Zombozo wasn't going to pay them squat, they fled to Mexico.

** Also in the reboot episode "Speechless on the Seine": not in fighting skills (they are already a case of AdaptationalBadass), but in position: they are now working ''with'' Zombozo, not ''for'' him, which means the clown can no longer boss them around.
* VillainsOutShopping: The end of "Vote Zombozo" has the three of them chilling out on a beach.
** During the theft they were literally talking to each other how they wanted to spend their share.
** "Speechless on the Seine" reveals that Thumbskull enjoys juggling in his free time.

[[AC:Frightwig (Reboot)]]
[[quoteright:255:https://static.tvtropes.org/pmwiki/pub/images/screenshot_2018_09_19_215357.png]]

In the reboot, Frightwig is introduced as a 10-year old girl who is her own standalone villain, not yet a part of the Circus Freaks ([[spoiler:and when she does join up with them, the group itself doesn't last long, at least under Zombozo]]). Her hair is now a device attached to her head, complete with its own A.I. voice that can talk to her.

* AdaptationPersonalityChange: Frightwig is now a mischievous 10-year-old, much like Ben, except her mischief is criminal, even potentially homicidal. She also has [[MadScientist a penchant for science]] that was not present before.
* AgeLift: She was a fully grown adult in the original series, but is 10 years old here.
* AscendedExtra: In the previous series, she was more or less just a disposable mook whose only real purpose was [[ButtMonkey to get thrown around]] by Ben, and with fairly little character. She gets much more emphasis as an independent antagonist in this series, along with a more developed personality and explanation for her hair.
* BadassAdorable: Much stronger than her Classic self and far cuter as well.
* CombatTentacles: Her hair still holds this power.
* CompositeCharacter: Her name and powers are the same as the original Frightwig, but her being around Ben's age and her [[EvilCounterpart dark similarities]] to him make her more similar to Kevin 11.
* CharacterizationMarchesOn: Most of her later reboot episodes portray her as a rather stern and no-nonsense crook, a farcry from her much more hammier and sadistic side in her debut, "All Wet."
* DidntThinkThisThrough: In her debut, she decides to flood a water park, and she never thinks to flee before the park was destroyed.
* DudeWheresMyRespect: She doesn't much like being treated as a "rookie" due to her age when she joins the Circus Freak Trio. Then she, like the rest of the trio, gets fed up with Zombozo's BadBoss nature.
* EnfanteTerrible: Only 10-years-old and already a master criminal.
* EvilCounterpart: To Ben. She's a mischievous 10-year old who gets a powerful device attached to her body (in her case, her hair), but she uses it for evil rather than for good.
* EvilerThanThou: ''Zombozo'' actually attempts to reform in "Party Poopers", but Frightwig drags him back to a life of crime.
* MadScientist: Her hair device and A.I. along with conversations she holds with Acid Breath and Thumbskull in "Vote Zombozo" shows that she's obsessed with science and technology to an amoral degree.
* TagAlongKid: She is the youngest of the Circus Freak Trio, being 10 years old, while Acid Breath is a 16 years old teenager and Thumbskull is an adult.
* TheRival: To Ben, mainly on her side due to how frustrated she is with him thwarting her plans. Ben [[UnknownRival just treats her like a nuisance]].
* TroublingUnchildlikeBehavior: Trying to sabotage factories, robbing banks, attempting to blow up a dam, throwing a ''computer into a swimming pool full of people'', attempting to ''destroy a city''...all stuff she does.
* WeaksauceWeakness: Her hair is rendered powerless when it gets wet, not to mention she can tangle herself up in it.
[[/folder]]

[[folder:Sublimino]]
!!Sublimino
[[quoteright:244:https://static.tvtropes.org/pmwiki/pub/images/sublimino5_500.png]]
->'''Voiced by:''' Creator/RichardStevenHorvitz

A short-tempered, midget-sized human with hypnotic powers who used them to control people and force them to accomplish crimes for his profit.
----

* AdaptationalHeroism: [[spoiler:In the Reboot, [=SixSix=] turns out to have been GoodAllAlong, as he was actually trying to prevent Vilgax's return.]] However, following appearances averts this, implying he did that because somebody paid him to.

* ATwinkleInTheSky: In the reboot episode "Mutiny on the Bounty", Shock Rock hit [=SixSix=] with so much force he disappeared over the horizon.

* OutofFocus: Not quite as prominent in the reboot, where he is depicted as a generally less capable fighter than his hunter associates, and Kraab instead gets more limelight as Tetrax's rival.

* AdaptationalBadass: He is actually a pretty formidable opponent in the reboot: he outlasted [=SixSix=] in both battles against [[TheAce Shock Rock]], takes control when he and [=SixSix=] teams up against Tetrax and even gets the drop on him, shattering one of his arms. Tetrax is only saved by [[SaveTheVillain Ben's intervention]].
* AdaptationalHeroism: [[spoiler:In the Reboot, he turns out to have been GoodAllAlong, as he was actually trying to prevent Vilgax's return.]] Like [=SixSix=], this was averted in the following episodes.

* OutOfFocus: He has only made three appearances across the entire franchise. Downplayed in the reboot, where although he is still used very sparingly across seasons, he manages to have a slightly more prominent role.

* TheSmartGuy: Of the team he forms with [=SixSix=] and Tetrax in the reboot. He insists that he should get a larger share of their pay for this.
* ThirdPersonPerson: He does it sometimes in the reboot.
-->"Kraab will return! Mark Kraab's words!"

* WeaksauceWeakness: He can be taken out in a single shot of electricity.

->'''Voiced by:''' Creator/JohnKassir (Original Series), Creator/JohnDiMaggio (''Ultimate Alien'', ''Omniverse'', ''Reboot'')

[[AC:Reboot Series]]
[[quoteright:350:https://static.tvtropes.org/pmwiki/pub/images/zombozo_re.png]]

* {{Acrofatic}}: He is clearly overweight, yet he can run and do flips and cartwheels like is nobody's business. He even fought several of Ben's aliens with his acrobatics.
* AdaptationPersonalityChange: He's much more "clown-like" here, reminiscent of ComicBook/TheJoker from [[UsefulNotes/TheSilverAgeOfComicBooks the Silver Age]].
* AdaptationalBadass: He's a more skilled fighter here than in any other version.
* AdaptationalWimp: He isn't remotely supernatural in this show, with his gimmick being hypnotic mind-control technology instead.
* AscendedExtra: The original continuity's Zombozo only ever had five appearances (one in the original show, one in ''Ultimate Alien'', and three in ''Omniverse'' - with two of those being little more than cameos). This version, by contrast, appears much more regularly.
* BadBoss: He is ever. Not only he is not paying a dime the Circus Freak trio [[spoiler:causing them to leave him in]] "Vote Zombozo", but the same episode also reveals that Acid Breath (a 16 years old in this version) has been reduced to his current look by a disease that Zombozo never bothered to have a doctor check or treat, despite the teen begging him to.
* CompositeCharacter: Rather than circus related paranormality, here his main gimmick is hypnotic mind control, much like Sublimino in the first series.
* HeelFaceDoorSlam: He actually tries to go straight in "Party Poopers", but Frightwig is having none of it.
* IneffectualSympatheticVillain: Zombozo isn't very lucky - not only does he always fail, but [[spoiler:eventually even his hired hands, the Circus Freak trio, temporarily abandon him, and by "Supervillain Team-Up" he's living as a hobo. It gets so bad that he even tries to go straight as a party clown in "Party Poopers".]]
* LargeHam: He has a very theatrical voice, courtesy of John [=DiMaggio=].
* LazyBum: In "Welcome to Zombozo-Zone" he hypnotized everybody in a medieval-style fair (including the Tennysons) in believing he was the king. He then proceeds to do basically nothing except stuff his face and take servants, leaving Ben to do all the work with his aliens. He even admitted to Gwen he only wants to be king to "eat, relax and dress fancy".
* MonsterClown: Although much less monstrous than in the earlier shows. He fits the bill a little more in "Dreamtime", where he traps the Tennysons in a nightmare they can't escape from where he rules with some RealityWarper powers thanks to a machine he built.
* NotSoHarmlessVillain: While he is less dangerous than his OS counterpart, "Dream Time" and "Funhouse" show that he can be an effective threat when he wants to be.
* UnwittingPawn: Frightwig and the othercircus freaks are just using him as a distraction and he has no idea.
* VillainTeamUp: Vilgax kidnapped him in "Super Villain Team-Up" to use his hypnotic powers to mind control the army of aliens he wanted to create with Ben's Omnitrix.
* WeaksauceWeakness: Not him, but his hypnosis: if a victim sees their own reflection, they immediately break free.

->'''Voiced by:''' Creator/RobertPatrick (Original Series), Creator/RobPaulsen (''Omniverse''), Creator/JohnDiMaggio (Reboot)

[[AC:Reboot Series]]

* AdaptationalHeroism: Quite possibly the biggest example in the series. Instead of a conman who freed dangerous aliens only to capture them again to earn a quick buck, this Phil has become an honest engineer and one of Team Tennyson's biggest allies, to the point where he's a frequent GuestStarPartyMember.
* AdaptationalNiceGuy: He is a fine fellow who worries about his coworkers' safety. He also gets along well with Ben and Gwen.
* FreudianSlip: He almost calls the Omnitrix by name before catching himself, even though Ben haven't revealed it to him, suggesting he knew about the watch beforehand.
* GadgeteerGenius: He is able to study the Omnitrix, an extremely complex piece of alien technology, and discover what its problem is and how to fix it. He also built the Omnicopter, allowing the Tennyson family to gallivant all over the world.
* InNameOnly: While he shares a few traits with his Classic self, this Phil is ultimately a completely different character.

* MakeMeWannaShout: Can open his mouth into four mandibles generating a sonic howl.

* EvilCounterpart: Kevin paints a good picture of the consequences if Ben always misused the powers of the Omnitrix for his own benefit and lacked ''all'' of his morals or standards. He even gets a NotSoDifferentRemark from Ben himself once his mind is set upon crashing the trains.

* OutOfFocus: Like Clancy, he never appears or is mentioned again after his first appearance and role in the Negative 10.

* PayEvilUntoEvil: [[spoiler:Sucking out Addwaitya's soul for her DealWithTheDevil. While most of her other victims were innocent and didn't deserve it, he certainly did. She was certainly getting back at him for killing her father and fellow people.]]

[[quoteright:211:https://static.tvtropes.org/pmwiki/pub/images/charmcaster_ov_8295.png]]

* ALighterShadeOfBlack: [[spoiler:Charmcaster is hardly a saint, but Addwaitya is way, ''way'' worse: she may have done more damage than he did temporarily (though one could argue that regardless of what Spellbinder claimed, wiping out all life in her realm in one go is still more benevolent than Addwaitya's systematic killing over the ages) but is called out on it and becomes TheAtoner afterward; by contrast, Addwaitya was power-mad and unrepentant to the end.]]

* NeverASelfMadeWoman: Beyond her IrrationalHatred of Gwen, Charmcaster either works for men (Hex, Zombozo) or is motivated by her feelings for men (her father, Darkstar).

* EvilCounterpart: He's a lot like Ben, but without ''any'' of his morals or standards. He even gets a NotSoDifferentRemark from Ben himself once his mind is set upon crashing the trains.

One of the few villains in Ben's RoguesGallery to be a human. Dr. Aloysius Animo was once a brilliant veterinary, until he made genetic experiments on animals in the hope of gaining a famous medicine prize. His experiments were judged amoral, and the prize was instead given to another doctor. Unable to stand this, Animo retreated for years and went on in his experiments. Eventually, he ended up developing a device named the Trasmodulator that allowed him to transform animals into giant mutant monsters.

* PsychopathicManchild: In his first appearance, his entire motivation for creating the Trasmodulator was to have the means to steal the reward he believes should belong to him, even giving a fake acceptance speech the moment he got his hands on the trophy and later throws a tantrum on how much he wants it as he's being taken into custody. He also expresses an almost childlike glee once he learns about the full capabilities of the Omnitrix, becoming obsessed with stealing and incorporating samples of alien DNA into his work to create even further mutations, purely because he thinks life will be more interesting that way.

* FemalesAreMoreInnocent: Had became this during ''Ultimate Alien'' against two male villains: Addwaitya (who caused her father's death) and Michael Morningstar/Darkstar (who only seduced her just for the mana). In fact, even with her practically questionable actions, that show had apparently made her more openly sympathetic than how she was before.

* FemalesAreMoreInnocent: Had became this during ''Ultimate Alien'' against two male villains: Addwaitya (who caused her father's death) and Michael Morningstar/Darkstar (who only seduced her just for the mana).

* WakeUpCallBoss: [=SixSix=], alongside Kraab and Tetrax, serve as this to Ben in the original series, being the first enemies that he can't defeat with brute force and force him to use his transformations strategically.

* WakeUpCallBoss: Alongside [=SixSix=] and Tetrax, he is the first enemy that gives Ben his first real challenge and force him to start using his transformations strategically.