History Characters / Ben10OmnitrixAliens

* BadassLonghair: In ''Ultimate Alien''. His whole design was generally a ShoutOut either to [[MortalKombat Goro]] or the Green Martians in ''JohnCarterOfMars''. Fans [[TheyChangedItNowItSucks didn't exactly like it]].
** BadassMoustache: He ditches the long hair for one of these in ''Ben10Omniverse'' to give him a carnival strongman look. Fan response has been [[BrokenBase mixed]], but it's generally more well-liked than his ''UltimateAlien'' design.

* HeyItsThatVoice

* YouDontLookLikeYou: In ''HeroesUnited'', he looks like a fairly normal-looking [[http://images.wikia.com/ben10/images/8/80/Screenshot2011-11-25at83224PM.png yeti]]. In ''Omniverse'', he looks [[http://images.wikia.com/ben10/images/5/50/ShocksquatchAlien.jpg far more]] like a typical [[ShockAndAwe electric]] character, to the point he resembles a simian [[SpiderMan Electro]].

* GeniusLoci: He may not be as big as an actual planet, but he's beedn classified as a "living planet," hence his gravity powers. The sphere in his stomach represents the molten core of a planet.

* BoisterousBruiser: o God...

* DumbMuscle: Ben get dumber and less aggressive in this form, making it one of his least controllable forms. However, since he usually uses it for fight, he doesn't really mind.

* BoisterousBruiser

* DumbMuscle

* JerkJock

* WhenAllYouHaveIsAHammer: Kevin notes that all of Rath's species believes that anything can be solvable by hitting it.

-> Voiced by Michael Dorn

* FusionDance: Ben uses him to do this with [[GeneratorRex Rex]] in [[Ben10GeneratorRexHeroesUnited Heroes United]].

* GlassCannon

* LeeroyJenkins: Most notable in the first series, when ever Ben would act incredibly impulsive during a fight, chances are he'd turn into Four Arms.
* LightningBruiser

* SpotlightStealingSquad: Ben's favorite alien in the original series.

* {{Technopath}}

* DiscardAndDraw
* EmpathicWeapon

* LoyalPhlebotinum

* MagicalDatabase: The Codon Stream

* BlackBox

* AwesomeButImpractical

* TheLoad

* MyBrainIsBig

* TheSmartGuy

* SuspiciouslySimilarSubstitute: To Diamondhead, until the season 3 premiere of ''Alien Force''.

* BigCreepyCrawlies: he looks like a giant, vaguely humanoid, skeleton-like butterfly.
* BreathWeapon
* CreepyGood: not as much as Ghostfreak, but he comes close.

* GlassCannon: Unless he's using his intangibility.

* MisterSeahorse: Every 70 Earth years or so.

* JackOfAllStats: Echo Echo

* LethalJokeCharacter

* HealingFactor: Swampfire

* LightningBruiser

* LightEmUp

* DeeBradleyBaker: Unless stated otherwise, [[ManOfAThousandVoices this guy]] voices ''all the aliens'' introduced after ''Alien Force'' and replaces most of the alien voices from the original series.
** He's probably breathing a sigh of relief since he's not gonna have to massively overwork himself/run out of different voices in ''Omniverse'', considering Bumper Robinson, JohnDiMaggio, DavidKaye and YuriLowenthal are going to voice some of the aliens along with other unannounced voice actors.

* SuddenlyVoiced: By YuriLowenthal from ''Alien Force'' onward.

* SuspiciouslySimilarSubstitute: [[TheSameButMore The Ultimatrix]]

!Current Ultimatrix Playlist

Aliens Ben uses in ''UltimateAlien''.

!! '''Alien X''' (AF-13)
-> Serena voiced by Vicki Lewis (Alien Force), TaraStrong (Ultimate Alien)
-> Bellicus voiced by KevinConroy (Alien Force), JeffBennett (Ultimate Alien)

* AwesomeButImpractical
* ChekhovsGunman: Played a role in ''Ultimate Alien'' episode 16.
* FreudianTrio: Serena is the [[TheSpock Superego]], Bellicus is the [[TheMcCoy Id]], and Ben is the [[TheKirk Ego]].
* TheLoad
* RealityWarper
* StarSpangledSpandex
* [[SealedEvilInADuel Sealed Neutral in a Debate]]
* SealedGoodInACan: Ben had the alien locked in the Ultimatrix so that it can only be activated for emergencies, and so Albedo couldn't access it were he ever to get his hands on a Codon reciever again.
* VoiceOfTheLegion: When he ''does'' speak, it's Bellicus, Serena, and Ben in unison.

!! '''[=AmpFibian=]''' (UA-08)
-> Voiced by YuriLowenthal (in "Fused"), DeeBradleyBaker

* ElectricJellyfish: An anthropomorphic version.
* ElectronicTelepathy
* FragileSpeedster
* IntangibleMan

!! '''Armodrillo''' (UA-09)
-> Voiced by DeeBradleyBaker (Ultimate Alien), JohnDiMaggio (Omniverse)

* DishingOutDirt
* MightyGlacier
* PoweredArmor: Appearance-wise, but it's organic.
* SuperStrength

!! '''Big Chill/Ultimate Big Chill''' (AF-04, UA-03)
-> Voiced by DeeBradleyBaker

* AnIcePerson
* BreathWeapon
* {{Fauxshadow}}: One episode has him going out of Ben's control, and Gwen believes that he's following in the footsteps of Ghostfreak, since they're both ghost-like aliens. But actually, no, BC was just getting ready to be a mommy/daddy/whatever.
* GlassCannon: Unless he's using his intangibility.
* HarmlessFreezing: Unless Ben engaged in a major BloodlessCarnage slaughterfest in "Hit 'Em Where They Live", BC's ice is like this.
* MisterSeahorse: Every 70 Earth years or so.
* OurGhostsAreDifferent
* TechnicolorFire: Reversed. Big Chill blows blue ice breath, while [[SuperMode Ultimate Big Chill]] breathes red [[BreathWeapon "ice flames"]] that create an instant [[strike:ice sheet]] ''glacier''.
* WingedHumanoid: Specifically moth-like wings.

!! '''Brainstorm''' (AF-07)
-> Voiced by DeeBradleyBaker (Alien Force and Ultimate Alien), CoreyBurton (Omniverse)

* BritishAccent
* [[StarfishAliens Crawfish Alien]]
* [[GiantEnemyCrab Giant Hero Crab]]
* MightyGlacier
* MyBrainIsBig
* SesquipedalianLoquaciousness
* ShockAndAwe
* TheSmartGuy

!! '''[=ChamAlien=]''' (UA-32)
-> Voiced by DeeBradleyBaker

* BewareMyStingerTail
* FragileSpeedster
* {{Invisibility}}
* CheshireCatGrin
* GlamourFailure: When invisible, he still casts a shadow.
* ShoutOut: Chamalien could be called the shout out alien:
** His design and powers are similar to Randall from WesternAnimation/MonstersInc.
** His three eyes are based on the 50s film version of WarOfTheWorlds
** His Grin powers and colors could be a reference to the Cheshire Cat.
* SlasherSmile

!! '''Chromastone/Diamondhead''' (AF-05, OS-01)
-> Chromastone voiced by DeeBradleyBaker
-> Diamondhead voiced by Jim Ward (Original Series), DaranNorris (Race Against Time), DeeBradleyBaker (Alien Force, Ultimate Alien), Eric Bauza (Omniverse)

* EnergyAbsorption: Chromastone
* GemstoneAssault: Diamondhead
* GlassCannon: Diamondhead

* LightEmUp: Chromastone
* LightningBruiser: Chromastone
* NighInvulnerability: "Nigh" is the keyword, at least for Chromastone.
* PowerCrystal: Living ones at that.
* ShapeshifterWeapon: Diamondhead

* SuspiciouslySimilarSubstitute: Chromastone to Diamondhead, then vice-versa.

!! '''Clockwork'''
-> Voiced by DeeBradleyBaker

* BlingOfWar: Except he's the SquishyWizard in practice.
* ClockworkCreature
* GlassCannon: His lasers can age you to dust in seconds, but one blast that other forms just shrug off is enough to knock him out and break his arm.
* PensieveFlashback: Another ability of his is casting holograms of past events over the location where they happened, through whomever is around.
* TimeMaster

!! '''Eatle''' (UA-42)
-> Voiced by DeeBradleyBaker (Ultimate Alien), Eric Bauza (Omniverse)

* BigCreepyCrawlies: Looks like a giant rhinoceros beetle.
** He looks even more like one in ''Omniverse''.
* ExtremeOmnivore
* HornAttack: It can shoot beams after consumption.
* TheWorfEffect: Doesn't get a chance to ''do'' anything in his first appearance before getting clobbered.

!! '''Echo Echo/Ultimate Echo Echo''' (AF-02, UA-11)
-> Voiced by DeeBradleyBaker

* AttackDrone: Ultimate Echo Echo trades the DoppelgangerAttack for a series of floating discs that act as speakers for his sonic attacks.
* CombinationAttack: [[ExactlyWhatItSaysOnTheTin "Wall of Sound"]].
* DoppelgangerAttack: Echo Echo
* {{Flight}}[=/=]SuperSpeed: Ultimate Echo Echo is the only alien faster than Jetray or [=XLR8=].
* JackOfAllStats: Echo Echo
** LightningBruiser: Ultimate Echo Echo
* MakeMeWannaShout: His basic form of attack.
* MechanicalLifeforms: He's a silicon-based lifeform, so he's most likely one.
* MesACrowd: Unlike Ditto, however, the duplicates are not constantly synced to each other, so it is possible for each one to transform into different forms separately, as seen in episode 2 of the newest series. Unfortunately, [[WordOfGod Ultimate Echo Echo is incapable of this]].
* RoboSpeak: Sounding like a speech synthesizer as Echo Echo, but loses any inflection and goes straight into CreepyMonotone as Ultimate Echo Echo.

!! '''Fasttrack''' (UA-28)
-> Voiced by DeeBradleyBaker

* LightningBruiser: Confirmed to be stronger than [=XLR8=]
* SuperSpeed
* SuspiciouslySimilarSubstitute: Of [=XLR8=].

!! '''Goop''' (AF-09)
-> Voiced by DeeBradleyBaker

* BlobMonster
* ConfusionFu
* CoveredInGunge: Not him, but others when he takes a hit.
* HollywoodAcid: Can make his substance this to attack.
* NighInvulnerability: By way of being Made of Fluid. (See BlobMonster)
* ThisLooksLikeAJobForAquaman: His usefulness is limited in battle, but finds practical uses in other areas, such as saving a planet from being split apart.
* VoluntaryShapeShifting: To a point. He can flow through any opening his little saucer can get through.
* WeaksauceWeakness: Take away his saucer, and he's immobilized. Ben uses this to get the Omnitrix back from Vilgax on Primus.

!! '''Humongousaur/Ultimate Humongousaur''' (AF-02, UA-06 [[hottip:*:Although he was used by Albedo in AF-45]])
-> Voiced by DeeBradleyBaker (Alien Force, Ultimate Alien), JohnDiMaggio (Omniverse)

* AttackOfThe50FootWhatever: Can grow to 60 feet.
* EverythingsBetterWithDinosaurs
* MadeOfIron: Took lasers and missiles directly and only staggered.
* MightyGlacier
* SizeShifter: Humongousaur.
* WeaponOfChoice: As Ultimate Humongousaur.
** EpicFlail: Has a [[BewareMyStingerTail club-tail]] like an [[http://en.wikipedia.org/wiki/Ankylosaur Ankylosaur]], only his has a mace-like spiked ball.
** MoreDakka: Can turn his hands into four-barrel rocket launchers.

!! '''Jetray''' (AF-03)

* BewareMyStingerTail
* EyeBeams: And tail beams, too.
* FasterThanLightTravel: He can apparently generate his own [[Franchise/StarTrek warp field]].

* FragileSpeedster
* [[BatmanCanBreatheInSpace Jetray Can Breathe In Space]]
* SuperSpeed: In the skies and underwater, but not on land.

!! '''Jury Rigg'''
-> Voiced by DeeBradleyBaker (Ultimate Alien), Bumper Robinson (Omniverse)

* GeniusDitz: When fixing things rather than breaking them.
* GripingAboutGremlins: He even gets a little aviator get-up in ''Omniverse''!
* MrFixit
* [[TokenEvilTeammate Token Uncontrollable Alien Form]]: His basic instict is to break technology, which Ben doesn't have much control over.

!! '''Lodestar''' (AF-31)
-> Voiced by DeeBradleyBaker

* [[FromASingleCell From A Single Magnet]]
* IncomingHam: "LOOOODESTAAAAARR!!"
* InvisibleAnatomy: His head seems to be nothing more than a metal ball held up by a magnetic field, but his body comes along if it's moved.
* PullingThemselvesTogether: Does it when he gets blown up in "Ultimate Aggregor".
* RaymanianLimbs: his head.
* RoboSpeak: Like Echo Echo, he has a synthesizer-voice.
* SelectiveMagnetism
* StoneWall

!! '''Nanomech''' (Alien Swarm)
-> Voiced by Alex Winter (Alien Swarm), DeeBradleyBaker (Ultimate Alien)

* CanonImmigrant: While the other movie alien (Eon) has been absent since TheMovie, Nanomech has made the transition to the cartoon.

* HeliumSpeech: For ''Ultimate Alien'', to go with his microscopic stature.
* HiveMind: In ''Alien Swarm'', turning into Nanomech made him hear the voice of the Queen. Luckily, he resisted.
* IncredibleShrinkingMan: And he ''starts'' at about an inch.
* LethalJokeCharacter
* MechanicalLifeforms
* WingedHumanoid: He has four bug-like wings. The show forgot the first time for no apparent reason, but they remembered later.

!! '''NRG''' (UA-16)

* ElementalPowers
** ILoveNuclearPower
** PlayingWithFire: Uses "heat", not necessarily "fire".
* EnergyBeing
* {{Lzherusskie}}

* PoweredArmor

!! '''Rath''' (AF-39)
-> Voiced by JohnDiMaggio

* BadassNormal: Aside from his claws, the only thing Rath has is his strength and he ''still'' manages to be one of Ben's most powerful aliens.
* BoisterousBruiser
* CallingYourAttacks: In the form of Constellation/Star + wrestling move--"Polaris Pile Driver!"
* CatchPhrase: "Lemme tell ya somethin', ([[FullNameUltimatum full name here]])..."
* DestructiveSavior
* DumbMuscle
* {{Expy}}: Pretty obviously a tiger version of Hulk Hogan.
* HairTriggerTemper: He's practically this trope personified.
* [[ImmuneToBullets Immune To Lasers]]: It just makes Rath ''mad!''
* JerkJock
* JerkWithAHeartOfGold
* LargeHam

* LeeroyJenkins
* MeaningfulName: (W)Rath, the "Apoplexian". Doesn't get much more obvious than that.
* MegaNeko: What? He looks like a big anthro tiger.
* TheNicknamer: Calls Technorg, "Baby Man", and Seven-Seven "Karate Man".
* NinjaPirateZombieRobot: An alien who looks like a tiger and fights and acts like a wrestler. That sums him up.
* NoIndoorVoice: Subverted once when he answered a phone and lowered his voice. Otherwise, he's never quiet.
* NighInvulnerable: Getting hit with a laser doesn't phase him, nor does dropping out of the sky and causing a giant crater of him knock him out.
* PapaWolf: After warming up to the Tiffin. To the point that he'd ''knit a sweater out of an alien's organs'' if it declared war.
* SuperStrength
* ThirdPersonPerson: Additionally, addresses people by full name or title.
* {{Tsundere}}: Male example, possibly parodied; he has a soft spot for his friends, but usually blows them off with a "Whatever!"
* UnstoppableRage: Basically exists in this state.
* WhenAllYouHaveIsAHammer: Kevin notes that all of Rath's species believes that anything can be solvable by hitting it.
* WolverineClaws: Except he only has one on each hand. [[GettingCrapPastTheRadar In the middle of them]].
* WrestlerInAllOfUs

!! '''Ripjaws''' (OS-03)
-> Voiced by FredTatasciore (Original Series), DeeBradleyBaker (Ultimate Alien)

* AlluringAnglerfish
* JokeCharacter[=/=]LightningBruiser: He's the former on dry land, but in water, he becomes the latter.
* MoreTeethThanTheOsmondFamily: In the original series. In ''UltimateAlien'', he was given more traditional fish lips. The fandom [[TheyChangedItNowItSucks was not pleased]], and [[WordOfGod Derrick]] has repeatedly stated his design in ''Ben10Omniverse'' is more like the original Ripjaws.
* SuperNotDrowningSkills
* ThisLooksLikeAJobForAquaMan: Used almost specifically for aquatic environments, and is useless anywhere else.
** One of the last times he was seen in the original series was when Ben used him in a beach episode. Surfing.
** Although occasionally this could be subverted, as shown in Ripjaws last appearence in the Original series, where he proceeded to start tearing chunk out of a bad guy's car, despite being in the desert and the car MOVING.
* WeaksauceWeakness: He can't survive without water for long. As a result, he is one of Ben's least used aliens.

!! '''Shocksquatch''' (Ben 10 & Generator Rex: Heroes United)
-> Voiced by DavidKaye

* CanadaEh: Speaks with this accent, eh?
* BigfootSasquatchAndYeti
* ShockAndAwe
* SuspiciouslySimilarSubstitute: Brainstorm, minus the super-intelligence.
* WrestlerInAllOfUs: He appears to do an Elbow Drop in a preview for ''Omniverse''.
* YouDontLookLikeYou: In ''HeroesUnited'', he looks like a fairly normal-looking [[http://images.wikia.com/ben10/images/8/80/Screenshot2011-11-25at83224PM.png yeti]]. In ''Omniverse'', he looks [[http://images.wikia.com/ben10/images/5/50/ShocksquatchAlien.jpg far more]] like a typical [[ShockAndAwe electric]] character, to the point he resembles a simian [[SpiderMan Electro]].

!! '''Spidermonkey/Ultimate Spidermonkey''' (AF-08, UA-01)

* BreathWeapon: His Ultimate form shoots webbing from his mouth.
* [[EverythingsBetterWithMonkeys Everything's Better With Arachnichimps]]
* FragileSpeedster: Spidermonkey
** LightningBruiser: Ultimate Spidermonkey
* MultiArmedAndDangerous: Spidermonkey
* SuperStrength: Ultimate Spidermonkey
* WallCrawl

!! '''Swampfire/Ultimate Swampfire''' (AF-01, AF-46)

* ComboPlatterPowers: Basically Wildvine with a touch of Heatblast.
* CuteLittleFangs: Though only visible when up-close ([[http://images4.wikia.nocookie.net/__cb20110426073635/ben10/images/1/1c/Swampfire10.png as seen here]]), they're most notable at the start of "Prisoner 775".
* DisneyDeath: Both were briefly lost in the battle against Eon, who turned them to dust, but were "revived" by Ben 10,000 at the end.
* ElementalPowers
** GreenThumb
** PlayingWithFire
* HealingFactor: Swampfire
* KamehameHadoken: Ultimate Swampfire can shoot a large blast of blue flames from his palms
* LightningBruiser
* PlantAliens
* WhenTreesAttack: Ultimate Swampfire

!! '''Terraspin''' (UA-12)
-> Voiced by DeeBradleyBaker (Ultimate Alien), Bumper Robinson (Omniverse)

* AntiMagic: The species is immune to mana. Pity Ben fails to remember the fact the ''one time'' it would have helped.
* BlowYouAway
* EverythingsBetterWithSpinning: How he generates his wind attacks.
* JohnDiMaggio: Voice actor for his DNA doner, Galapagus, but not Terraspin himself.

* TurtlePower

!! '''Upchuck''' (OS-39)
-> Voiced by DaveWittenberg (Original Series), DeeBradleyBaker (Alien Force, Ultimate Alien), Eric Bauza (Omniverse)

* BigEater: Except he can't digest what is normally considered "food", leading to...
** ThisBillboardNeedsSomeSalt: At one point, he drinks an animated "Mr. Smoothie".
*** In the original series, this is quoted as Ben exclaims that Upchuck is a bottomless pit, but just can't eat regular food.
* BreathWeapon: Upchuck can fire laser beams from his mouth (or as he called them in Upchuck's debut 'exploding loogies'), though it has only been used twice (first against the Forever King in the original series then later on against Chromastone (who had escaped from the Omnitrix) in alien force. Though he prefers to fire exploding green energy pellets instead.
* ExtremeOmnivore
* GlassCannon
* MeaningfulName: When he showed off his powers of 'exploding loogies', Ben exclaimed that he had 'Upchuck power', that is to say, acidic vomit.

!! '''Upgrade''' (OS-04)
-> Voiced by TaraStrong (Original Series), YuriLowenthal (Ultimate Alien)

* ConfusionFu[=/=]MightyGlacier: He's the latter when he's just Upgrade and the former when....everything else.

* MechanicalLifeform
* RoboSpeak: Averted, Ben retains his human voice in this form, albeit with some static noises in the background.
* {{Technopath}}

!! '''Water Hazard''' (UA-01)
-> Voiced by DeeBradleyBaker

* MakingASplash
* NighInvulnerability

!! '''Way Big''' (Secret of the Omnitrix [[hottip:*:Part 3, or technically OS-52]])/Ultimate Waybig (UA-52)
-> Voiced by FredTatasciore (Original Series), DeeBradleyBaker (Alien Force, Ultimate Alien)

* AttackOfThe50FootWhatever
** SummonBiggerFish
* DestructiveSaviour: His energy beam as Ultimate does not automatically shut off if he moves.
* DisneyDeath: Was aged to dust by Eon, but restored by Ben 10,000.
* {{Expy}}: Of {{Ultraman}}. Right down to the + style energy beam.
* KamehameHadoken
* MightyGlacier[=/=]LightningBruiser: Originally the former, but turned out to be the latter.
* ShoutOut: Has horns like UltramanTaroh but the color scheme of UltramanTiga and UltramanDyna.
** SpinToDeflectStuff
** FourFingeredHands
* SuperSpeed
* WeaponOfChoice: As Ultimate Way Big.
** BladeBelowTheShoulder
** RingsOfDeath: As an EnergyWeapon.

!! '''Wildmutt/Ultimate Wildmutt''' (OS-01, UA-32)

* AngryGuardDog: With ape arms.
* BadassNormal: Compared to the other aliens, at least.
* BewareMyStingerTail: Ultimate Wildmutt gains a spiked tail.
* [[CallASmeerpARabbit Call A Vulpamancer A Dog]]
* TheCameo: Made a brief appearance in "Victor: The Spoils", while Ben was unconscious, before making his official reappearance in "Prisoner 775 is Missing".
* DisabilitySuperpower: Has no eyes but can "see" with it's other senses.
* EarlyBirdCameo: Meta example; a toyline first revealed the existence of Ultimate Wildmutt.
* JackOfAllStats: Wildmutt
** LightningBruiser: Ultimate Wildmutt.
* SkunkStripe: Ultimate Wildmutt has one down his back. It's even got a black outline where it attaches to his back, making it more obviously this trope.
* TheVoiceless: Averted with Ultimate Wildmutt, who is able to talk.

!Aliens Unused Since Alien Force

Since the Ultimatrix is just [[TheSameButMore a better Omnitrix]], most of these have been confirmed to be in it, but not accessed yet.

!! '''Benmummy''' (OS-37)
-> Voiced by Richard Green (Original Series), KevinMichaelRichardson (Omniverse)

* CombatTentacles: The bandages that make up his body
* ConfusionFu: Needless to say he has a very unorthedox attack pattern.
* {{Mummy}}
* NighInvulnerable: Can easily be torn apart and even ''shredded to bits'', but could reform nearly instantly.
* OneShotCharacter: Although he did make a brief appearance as a ContinuityNod in a later episode.
* SuddenlyVoiced: Ben can speak as Benmummy, despite the fact that the alien he got the DNA sample from is TheVoiceless.
* ZombieGait: Averted -- he's actually one of the more nimble aliens Ben can use.

!! '''Benviktor''' (OS-38)
-> Voiced by Michael Dorn

* {{Expy}}: Of both Dr. Frankenstein ''[[CompositeCharacter and]]'' [[FrankensteinsMonster his monster]].
* GeniusBruiser
* MadScientist
* MightyGlacier
* OneShotCharacter
* ShockAndAwe
* ShoutOut: To MaryShelley's ''Frankenstein''.

!! '''Benwolf''' (OS-31)
-> Voiced by TaraStrong

* MakeMeWannaShout: Or howl, to be more precise
* OneShotCharacter
* [[OurWerewolvesAreDifferent Our Werewolves Are Aliens]]
* SuddenlyVoiced: See above.

!! '''Ditto''' (OS-41)
-> Voiced by RobPaulsen

* TheArtifact: Echo Echo pretty much makes this guy obsolete.
* BadassAdorable: An adorable alien that's around the height of a kid who likes praying pranks. However it was used to destroy an army of mutant bugs in its debut episode.
* DoppelgangerAttack
* LethalJokeCharacter
* MesAcrowd
* TalkingToHimself: In a literal sense.
* WeakButSkilled
* WeaksauceWeakness: The clones all feel each other's pain. If one dies...

!! '''Eon''' (Race Against Time)
[[AC:See Villains section]]

!! '''Eye Guy''' (OS-48)
-> Voiced by DeeBradleyBaker (Original Series), PaulEiding (Omniverse)

* EarlyBirdCameo: Appeared in an alternate scene of ''Secret of the Omnitrix'''s opening scene but chronologically appeared first in "Ben 10 vs. The Negative 10, Part 2".
* ExtraEyes: Has eyes everywhere...
** EyesDoNotBelongThere: [[{{Irony}} Except where they should be]].
* EyeBeams: Every eye can fire a laser beam. Some eyes have a different type of laser.
** AnIcePerson: Can fire an ice laser.
** FrickinLaserBeams
* LightningBruiser

!! '''Grey Matter''' (OS-02)
-> Voiced by RichardStevenHorvitz (Original Series), Eric Bauza (Omniverse)

* GadgeteerGenius
* HeyItsThatVoice
* IncredibleShrinkingMan: Ben goes from whatever size he normally is, to about 6 inches tall.
* LethalJokeCharacter
* ShorterMeansSmarter
* TheSmartGuy
* WallCrawl
* WhatKindOfLamePowerIsHeartAnyway: At least in Ben's opinion. Though as the series went on, he found practical uses for him.

!! '''Stinkfly''' (OS-02)
-> Voiced by DeeBradleyBaker

* BigCreepyCrawlies
* BreathWeapon: Shoots slime from his mouth.
* {{Flight}}
* GlassCannon: Seriously, just throw some [[WeaksauceWeakness water]] on this guy and he's through.

!! '''Wildvine''' (OS-20)
-> Voiced by Jim Ward

* GlassCannon
* GreenThumb

!! '''[=XLR8=]''' (OS-01)
-> Voiced by Jim Ward (original series), YuriLowenthal (Omniverse)

* EverythingIsBetterWithDinosaurs: Looks like an armored velociraptor with wheels as his feet.

* InformedFlaw: According to the Bandai profile, his species has problem running on water due to the static electrity they produce while moving. Yet, [=XLR8=] has been seen walking on water with no such problems. Fans usually assume the suit might be protecting him.
* OurElvesAreDifferent: The bandai profile describes his species has possessing PointyEars and long hair, much like elves. However, since [=XLR8=] wears a helmet and can't remove it (and so does Helen), this has never been confirmed. On a note, the shape of his helmet is reminiscent of the Eldars, aliens from Warhammer40000 who are basically elves in space.
* SuperSpeed

! Aliens that will debut in ''Ben10Omniverse''

!! '''Ball Weevil''' (OV-??)

* BigCreepyCrawlies: Although he isn't THAT big.
* FourLeggedInsect
* MadeOfExplodium: He spits out sticky balls of silk that absorb things, and then uses them as ammo.

!! '''Bloxx''' (OV-01)
-> Voiced by Bumper Robinson

* BuiltWithLego: No, really.
* OurMonstersAreWeird: Again, he's a gorilla ''made from living LEGO bricks''.
* RubberMan
* VoluntaryShapeshifting: He's basically PlasticMan made out of LEGO bricks.

!! '''Crashhopper''' (OV-??)

* BigCreepyCrawlies
* InASingleBound

!! '''Gravattack''' (OV-??)

!! '''Feedback''' (OV-??)

-> Voiced by Richard Green

-> Voiced by DeeBradleyBaker

!! '''Bloxx''' (OV-??)

* MoreTeethThanTheOsmondFamily: In the original series. In ''UltimateAlien'', he was given more traditional fish lips. The fandom [[TheyChangedItNowItSucks was not pleased]], and [[WordOfGod Derrick]] has repeatedly stated he'll have these again in ''Ben10Omniverse''.

-> Voiced by Jim Ward

* BadassLonghair: In ''Ultimate Alien''

* MoreTeethThanTheOsmondFamily

* TheWrestlerInAllOfUs: He appears to do an Elbow Drop in a preview for ''Omniverse''.

* GripingAboutGremlins

[[/folder]]