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Villains

Vilgax

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Vilgax is a Chimera Sui Generis (named after the mythological monster, the Chimera, a Chimera is also an organism that has traits of multiple organisms), as well as a vicious, intergalactic conqueror, who will stop at nothing to obtain the Omnitrix in order to build an army capable of conquering every planet in the galaxy. He is one of the most feared aliens in the galaxy, having conquered 10 worlds, destroyed five others and created a black hole. In fact, he is so feared, that almost no biological life-form is willing to work for him, forcing him to use robotic Bioids and robot drones for his entire crew, though he is able to find mercenaries willing to work for him for the right price. He is also a self-proclaimed master of the Omnitrix, as he claimed that unlocking the Omnitrix's master control function was "child's play" for him, though how he gained this knowledge is unknown. However, in Alien Force, he finally obtains the Omnitrix but due to the fact it reformated itself into a new shape, he no longer knew how to activate it. He regained it again in "The Final Battle" but Ben ultimately sacrifices the Omnitrix, allowing it to self destruct, though Vilgax survived.

Vilgax serves as the main antagonist of Ben 10 and season 3 of Alien Force, as well as the most recurring and Ben's primary and most powerful nemesis making him his archenemy. Vilgax is thus far the only villain whom Ben has never actually been able to defeat : with the exception of "Secret of the "Omnitrix", "The Vengance of Vilgax Part 2," and "Primus", Ben has been completely outmatched every time he fought Vilgax and only manages to fight him off with external help. Also, in these three instances, Ben's victory was due to his use of Way Big and Diamondhead, Way Big being the only alien in his possession that Vilgax has never been able to overcome, even when he was equal in size to him and Ben being highly experienced with Diamondhead due to it being one of the original 10 and Vilgax having been unprepared to face Diamondhead, who Ben hadn't had prior to the battle.

In the original show, Vilgax had no real powers, though after an accident while trying to get the Omnitrix he was cybernetically enhanced, giving him colossal size, strength and durability who made him a match for every alien Ben could access then. He also had the abilities to temporary increase his own muscular mass and strength.

In season 3 of Alien Force, Vilgax gained various new abilities and equipment by draining powers from the champions of ten worlds he conquered. His new abilities include even greater strength and invulnerability, laser vision, wind breath, flight at lightspeed, super-hearing, a large sword he can cover with flame or crystal, a red laser projector, and a gauntlet he can use to generate personal force fields and electric shocks.

In "The Final Battle" Vilgax reveals a new ability : while underwater, he transforms into a huge squid-like monster (which he refers to as his true form) to fight Ultimate Swampfire. Afterwards, Vilgax may have been killed when his ship's fusion drive exploded, but Ben comments he may still be alive.

vilgax

vilgax (alien force)

vilgax true form 

Doctor Animo

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Dr. Aloysius James Animo was once a promising researcher in veterinary science who had a special way with animals. His career was cut short when it was discovered that he was performing twisted genetic experiments on animals. He had hoped that his research would win him the Verties Award, which is an award in veterinary science. Because of the nature of his research, he lost the award to another doctor named Kelly. This drove him insane, and he dropped off the map for five years until he could perfect his research.

In his first appareance, Dr Animo created his new invention, the Transmodulator, a device who can turn animals into giant monsters, and later to bring back dead creatures such as mammoths and tyrannosaurs. He attempted to use his new monsters to take his revenge against Kelly and take his price, but was prevented by Ben. After this, he became the third most recurrent villain in the show (the two first being Vilgax and Kevin 11), usually trying to create armies of mutants monster, and was even able twice to use DNA informations from the Omnitrix to enhance his creatures. He has the abilitie to telepathically control any kind of animal (including his monsters), an abilitie he learnt with thanks to Clancy according to the enhanced version of The Secret of the Omnitrix.

Animo appeared again in Alien Force episode Voided, where he had conquered the Null Void by using his power to take control of the Null Guardians. He then forced the residents of the Null Void to build a machine who would open a portal toward Earth so he could conquer it, but was stopped by the combined forces of Ben, and the resistance founded by Max and the Plumber's helpers. In this episode, Animo used his machine to give himself strength and durability who made him a match even for Humongousaur, something Ben stopped by freezing the machine by falling down into it, turning into Big Chill as he did.

Kraab

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Kraab is one of three alien bounty hunters sent to take the Omnitrix from Ben. He has goldish brown-colored armor, a sideways mouth, four scythe-like legs, and a large, powerful pincer on his left hand. Within the pincer is a power blaster combined with a chemical sprayer. He can also use his legs to burrow under the ground and travel quickly from place to place.

Kraab is an experienced bounty hunter and is smart enough to know of a chemical spray that takes away Ghostfreak's power to become intangible. It should also be noted that Kraab talks like an actual hunter, calling Ben his "prey", and saying that he is "hardly worth the hunt". However, Kraab is more robotic than organic, meaning Ben, as Grey Matter, can easily deactivate him.

He appears in "The Final Battle Part 1", where he fights with Ben, Gwen and Kevin. His appearance is not much changed, apparently the only change is the tone of color, and his left hand is clearer.

Sixsix

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Sixsix is one of three alien bounty hunters sent to take the Omnitrix from Ben in the episode "Hunted". He is a mercenary from the Sotoragg system. Unlike the other hunters, he only speaks in his own language, though other aliens can still understand him and vice versa. Sixsix has purple armor and strange, clamp-like feet; the armor he wears was taken from an assassin droid he gutted. He is equipped with a jetpack, and his armor is covered with pouches that hold various weapons and projectiles, such as twin blasters, laser discs, an energized buzz saw, laser blade and whip, a sonic weapon, throwing pikes, grenades, bolas, rockets, and several tentacle-mounted lasers coming out of his back pack. He also has several very strange small claws and hands that extend from his shoulders that are usually used to throw the small pikes coming out of his jet pack, or bombs when he is using his blasters. It is said he has quite a reputation as he wears a disguise when in Incarcecon as a means to avoid be attacked by those trying to prove their prowess by beating him. Sixsix is named after the caliber of the two pistols that he wields. It is revealed that he has an older brother named Sevenseven.

Sevenseven

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SevenSeven is a mercenary from the Sotoragg system and older brother of bounty hunter Sixsix. He is eleven times stronger than his younger brother because 66+11=77, hence the two names. He appeared the Ben 10 Alien Force episode X=Ben+2 and is expected to appear again in the new series Ben 10 Ultimate Alien. He is also depicted as more of a coward than his younger brother, as he flinched from the battle after one shot to his eye by Swampfire, whereas Sixsix would've decked Ben. This could be because of Swampfire's smell, but his helmet should have protected him from that.

Rojo

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Joey is the leader of a heavily armed female biker gang, first appearing in "The Alliance". When she tries to rob an armored truck, she is thwarted by Ben as Fourarms and two of Vilgax's drones coming after Ben. The remnants of one of Vilgax's defeated drones fuses with Joey as she investigates it, and she becomes Rojo (Spanish for red), a powerful cyborg. The upgrade gives her the ability to fly, superhuman strength, invulnerability, metallic claws, and a pair of laser blasters attached to each shoulder. Vilgax is able to communicate with her through the drone parts and force her to track down the Omnitrix for him. Joey is turned back to normal when Upgrade shorts out the spare parts, after which Gwen knocks her unconscious for attempting a sneak attack on Upgrade. Rojo appeared a second time as a member of the Negative 10, a group of ten villains formed by Discroll to defeat the Tennyson. She had a rivalry with Charmcaster.

The Circus Freaks

This trio of thieves are recurring minor villains. They worked together in the guise of being freak show performers in Zombozo's circus before his disappearance. Whenever Ben runs into them, they end up working for the villain of the week. They appear to all three be mutants - at least in the case of Acid Breath, who claims to have gotten his power from his mother.

Acid Breath

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Acid Breath is one of Zombozo's three minions, and without a higher rank to command them, he acts as the trio's leader (with somewhat inconclusive results). His appearance is quite like that of a zombie. He has the ability to project corrosive acid from his mouth in the form of either a vapor or a liquid; he claims that he learned this trick from his mother. This acid can easily dissolve whatever he wants it to, even metal and stone. Despite the potency of his breath, however, he is one of Ben's least dangerous foes. If his mouth is jammed by an object (such as a baseball) or if something causes him to cough and gag (such as when Gwen blew a fire extinguisher's contents into his mouth), Acid Breath will be briefly unable to use his powers and vulnerable to attack.

Frightwig

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Frightwig has pale skin, a tight-fitting body suit, and five orange tentacles for hair. They are also tipped with metal orbs for greater concussive damage. She's also extremely nimble and skilled in acrobatics. Despite her strength, she is always easily subdued by Ben, normally by being tied up with her own hair. The future episode "Ben 10,000" reveals that Frightwig, now middle aged, is the leader of the Nuevo Circus Freaks from 20 years in the future according to the Enhanced Edition of that episode.

Thumbskull

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Thumbskull, as the name suggests, has a head shaped like a thumb. Instead of hair Thumbskull had a horn which was broken previous to his on screen appearance. He also has incredible strength (though inferior to that of Fourarms), but limited intelligence, normally serving as the 'brawn' of the group. He is also easily beaten by Ben, normally even worse than the others. His name is a play on the insult "numbskull", as well as the obvious appearance gag.

Hex

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Hex, also known as Hexlord, is a self-proclaimed "Master Magician" who desires to rule the world with his unmatched powers. He possesses five "magical" charms called the Charms of Bezel that give him the powers of levitation, fire, reincarnation, lightning, and luck, in addition to his own spellcasting abilities. It is unknown how he possesses powers even without the charms, but since it's implied in "In Charms way" that Charmcaster was trained in manipulating mana, it was probably the same for him.

The Forever Knights

The Forever Knights are a secret society/paramilitary first formed during the Middle Ages that is dedicated to collecting alien technology. Any aliens they capture along the way are dissected and studied, and any humans caught with them are immediately deemed worthless and disposed of. Their entire organization dresses as if they were knights or mutants. They use a coat of arms over a pair of crossbones as their symbols. In their fourth appearance in "Perfect Day", a larger man in a full-body suit of armor called the Forever King is shown to be their superior. At this point in history they call themselves the CIA and are made of royal bloodlines.

It is revealed in Ben 10 Alien Force that the reason for their actions is to destroy and 'Immortal Dragon' that is a threat to all mankind it is later revealed that the 'Dragon' is actually a Alien Stellar Cartographer whose translator was destroyed when he was attacked by the first forever knights. The Forever Knights also arm themselves with a large variety of medieval weapons and alien technology, with swords, lances, "laser lances", laser guns and eletro shock rods being their most common ones.

Enoch

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Enoch has significant influence in the organization, appearing as their paramilitary leader in their first three appearances.

The Forever King

The Forever King is the paramilitary leader of the Forever Knights.

 

 Driscoll

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The first one shown is Driscoll, a former Plumber who was thrown out in disgrace for stealing alien technology for his own benefit. He later joined the Forever Knights and worked his way up the ranks, eventually becoming their leader. He wears a large armored suit that grants him enhanced strength, energy blasts, and protects him from harm. Driscoll is the closest thing to a main antagonist in the fourth season. Dwayne McDuffie confirmed that the Forever Knights that Driscoll led was a splintered faction bent on ruling the world while the group led by Patrick was dedicated to slaying the Alien Dragon.

Patrick

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Patrick is the Forever King seen in the second series. Dwayne McDuffie confirmed that Patrick is the true Forever King.

Clancy

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Clancy is a green-skinned man who has the ability to control any type of insect or arachnid. How he gained his powers is unknown, though he hints that he was born with them possibly making him a mutant. The Enhanced Version for "Secret of the Omnitrix" states that this ability is psychic and that he successfully taught it to Dr. Animo in the case of the latter's mutant animals. Clancy always speaks using first-person plural pronouns like "we", as he speaks for all of his insects as well as himself (possibly under adaptation of the principles of communal intelligence common among hive insects).

Vulkanus

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Vulkanus is a diminutive Detrovite. He wears mechanical armor to compensate for his small size. His armor makes him powerful enough to match Fourarms.

In his first appareance, Vulkanus was a freelance agent who teamed up with the bounty hunter Sixsix in order to create a weapon able to destroy a solar system. He was defeated by the combined forces of Ben and the Galactic Enforcers. He then had some apparences later in the show, mostly as a minor villain.

He appeared again in Alien Force, having become a criminal boss of his own with his own minions. According to him, he made a deal with Kevin at some point between the two series, but the he double-crossed him when the Plumbers arrived, causing him to be stuck on Earth. He attempted to take revenge on Kevin, but was stopped by Ben and Gwen. However, he was before this able to shortly force Kevin to absorb Taedanite, the rarest gem in the Galaxy, and by this way gain a fortune, and Kevin choose to let him have it as a payment for his past actions.

After this, Vulkanus used his new fortune to buy a permission to change Earth climate so it would be more like his homeworld. His plan was foiled by Ben, Gwen and Kevin once again.

In The Con of Rath, Kevin, Gwen and Ben (stuck in the form of Rath) met him again on a planet, where they tried to get Taedanite from him to repair their ship. After a failed attempt to negotiate, they beat him and took the Taedanite by force.

Charmcaster

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Charmcaster is Hex's teenage niece. Like Hex, she uses magic, but instead of using a staff, she wields a bag from which she can draw all manner of items, such as magical explosives, throwing blades, or even various clay animals to enlarge and animate. Although small, the bag seems to have something of a pocket dimension inside (basically a magic satchel), allowing Charmcaster to store things within it that logically should not fit (at one point, she produces Hex's magic staff, an item that is at least four feet tall). The bag also found its way back to Charmcaster under its own power, as she was able to get it back after it fell in the sea. She is also skilled in various magical spells, although it's clear that because of her inexperience, she isn't as powerful as her uncle. Although she (like many other villains) dislikes Ben, Charmcaster especially despises Gwen on account of their shared affinity for magic, similar to Ben and Kevin's rivalry.

In her first appearance, Charmcaster helped her uncle to get free from jail and took the key of Bezel from Gwen for him. However, she betrayed him at the last minutes in order to get the Charm of Bezel for herself. Gwen was able to use Hex's staff to stop her, the first hint of her magic abilities.

Charmcaster then became a quite recurring character as the series progress, even more than her uncle. She played a key role in the development of Gwen's magic powers, as it was by stealing her magic book Gwen learnt how to use spells. As the story progress, Charmcaster's rancour for Gwen increased. She was part of the Negative 10, but even then she was more concerned in defeating Gwen rather than Ben. She also had a rivalry with her partner Rojo.

Charmcaster comes back in season 3 of Alien Force along with her uncle, though she is the first to appear. She wear a drastically different outfit, and, instead of her bag, she now rely mainly on mana manipulation like Gwen, though she's still seen using various spells such as shapeshifting, water manipulation, teleportation and bringing inanimate objects to life. She's also far more vicious and arrogant than before.

Ghostfreak

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Ghostfreak was originally one of Ben's aliens who's DNA was taken from Zs'Skayr, the High Ecto-Lord of the Ectonurite homeworld of Anur Phaetos, who existed in the Omnitrix due to Ectonurite's having the ability for their mind to exist in even in the smallest strand of their DNA. Ghostfreak's original appearance was similar to that of a ghost with a black track along his skin but after freeing himself, he tore off the protective second skin to reveal his true horrifying form. He has the power to phase through matter and possess humans by going into them and controling them. He also has telekinesis over beings he possesses and becomes far stronger if he's in complete darkness, which allows him to become even scarier in appearance and fire a powerful energy beam from his chest. However, his weakness is without the second skin protecting him, sunlight can cause him to combust and die.

Ghostfreak first took over Ben offscreen to contact Dr. Vicktor to stage an invasion of Earth. He eventually broke free of the Omnitrix, and tried to possess Ben repeatedly, only to be exposed to direct sunlight and die. Later, his minion Doctor Vicktor revives him and he tries to block out the sun so he can conquer the Earth, fighting Ben and eventually being exposed directly to the sun, killing him once again but not before his DNA was re-added to the Omnitrix, only in his true form.

Prior to Ben 10 Alien Force, he was eventually removed from the Omnitrix and imprisoned using sunlight but Vilgax freed him in exchange for information about the Omnitrix. Unfortunately, Ghostfreak betrayed Vilgax and conquered his homeworld of Vilgaxia, turning its population into copies of his original form. Ben eventually reabsorbed Ghostfreak but was overtaken by him. While Vilgax fought, Ghostfreak was stunned in a flash of light, letting Ben retake his body and imprison Ghostfreak again.

Since the present Ghostfreak is a genetic copy of Zs'Skayr, its unknown what happened to the original Zs'Skayr who his DNA was sampled from.

Yenaldooshi

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This alien werewolf (his actual racial name is Loboan) was sent by Doctor Vicktor to steal communication equipment from a Navajo Indian reservation that Ben, Gwen, and Grandpa Max were visiting in "Benwolf". Ben first fights against the Loboan as Wildvine. When Ben is transformed back to his normal self by the Omnitrix, the Loboan slashes the Omnitrix's faceplate causing the device to download his DNA (signified by its face turning yellow) and gradually change Ben into the form. In their second battle, the Loboan appears to be killed by a cave-in, though it is not actually shown dead. The device that it was building is shown coming online at the episode's end, its purpose left unrevealed.

Sublimino

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Sublimino is an evil hypnotist who first appeared in "Midnight Madness". Sublimino uses hypnosis to force people to commit crimes for him. Ben ended up as one of his victims, and Ben's alien forms prove instrumental in retrieving the necessary parts to build a giant hypnosis machine, allowing Sublimino to control an entire mall full of people. When Sublimino hypnotized everyone in the mall, Ben alone escaped the trance. As Wildvine, he brought down Sublimino and broke his hypnotic spell. Other than his hypnotic powers, Sublimino is a weakling relying on his slaves to protect him using various objects in the mall, and proved no match for Wildvine.

The Mummy

The mummy appeared in "Under Wraps", a Thep Khufan from the planet Anur Khufos, was sent by Doctor Vicktor to find a dangerous element called corrodium that crashed on Earth millions of years ago. Grandpa Max explains that the crystals are a potent but unstable power source, and the radiation emitted by the crystals causes almost instant mutation in humans and other Terrestrial creatures. Todd Maplewood, a boy Ben and Gwen met, said it arrived in purple lightning, which is the same way the Yenaldooshi arrived in "Benwolf". Max states there may be a connection between the werewolf and the mummy, which is proven in "The Return". During Ben's battle with the creature, its DNA is absorbed by the Omnitrix, giving Ben access to the form. The mummy is frozen solid by Upgrade, who merges with a container holding liquid nitrogen, and buried, along with its corrodium, under a thick bed of concrete.

Doctor Viktor

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Doctor Viktor is a Transylian from Anur Transyl, an alien resembling Frankenstein's monster. His name is derived from the name of Victor Frankenstein from the Mary Shelley novel. He works at NASA to obtain the means to hijack a space shuttle. Despite his size, he possesses excellent reflexes, able to quickly spin around and backhand a super-speeding XLR8 when the latter attempted a sneak attack on him. He is intelligent, and working for Zs'Skayr; his immediate plan was to resurrect his master, whose ultimate plan was to prevent the sun's light from reaching the earth using various satellites (therefore meaning that Zs'Skayr would be at full power all of the time). He is not treated with respect after Zs'Skayr is resurrected. After he asks why they need Ben, Zs'Skayr takes control of his body and throws him around. He serves as the unofficial leader of the three horror-themed aliens. The purple lightning that the previous two horror aliens appeared in was generated by a teleportation machine that he uses. His first appearance is in "The Return", where he succeeds in resurrecting Ghostfreak. In the next episode, "Be Afraid of the Dark", Ben fights Doctor Viktor and Zs'Skayr on Earth. Ben accidentally gains use of Doctor Viktor's form when Viktor finds Ben and grabs him by the wrist, unintentionally adding his DNA to the Omnitrix. Viktor essentially defeats himself near the end of the episode. In an attempt to teleport Ben to an unspecified location, he and the mummy alien are tossed into the portal he created.

Highbreed

The Highbreed are a xenophobic alien race from the planet Darama that serve as the primary antagonists of the first two seasons of Ben 10: Alien Force. They considered themselves as the highest life-form in the universe, believing that they were the first race to exist, and that all other races are mongrels and vermin. They were determined to cleanse the universe of all races except themselves, with Earth as their next target. They did not try to hide their hatred for other races; a Highbreed Commander that fought with Ben in the pilot episode continually insulted him with remarks like "filth" and "scum", and even exclaimed that Ben had "infected" him when Ben bit his hand as Humongousaur. Their belief that other races are "filth" was so strong, to the point they appear to have a fear of possible contamination through direct contact with other races (one, Reinrassic III, even goes so far as to choose exile, after he realizes he had developed a mutual-respect/friendship with Ben, viewing himself as having been "tainted" by Ben's human sentiments and compassion). This search for 'purity' was their undoing, as generations of inbreeding left them near extinction. They used the DNAliens to do their menial work (likely due to their preference to avoid as much contact with other life-forms as possible), but nonetheless consider them to be vermin as well due to their human DNA. Despite their disgust of other beings, they occasionnally hire non-Highbreed mercenaries to do work for them. Following the events of "War of the Worlds", the Highbreed no longer have this view of other races due to all being merged with random DNA from the Omnitrix, which also saved their species, and the actions of Reinrassic III who had rehabilitated in his exile and is now the "Highbreed Supreme" and Ben's ally.

DNAliens

The DNAliens are highly durable, asexual hybrid drones who serve the Highbreed despite their racist and bigoted purposes.[15] They are created by attaching a Headcrab-like parasite called a Xenocite to a human host, which alters the host's genetic structure, mutating them into a DNAlien within hours. The alteration process is not exclusive to only humans. Other alien species can fall victim to a Xenocyte, resulting in a DNAlien with traits from the alien victim.[16] However, it is possible for the Omnitrix to separate a victim from a Xenocyte.

Darkstar

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Michael "Mike" Morningstar is the son of a plumber who first appears in the episode "All That Glitters." He has the power to drain the life force from people and turn them into zombies under his control, though he seems to prefer school girls, as they are easy for him to lure because of his good looks. Mike can use the energy he drains for flight, superhuman strength and durability, and to fire destructive energy blasts. His victims can be identified by circular, star-like marks on their arms that bear resemblance to parasite bites; a result of the mouths on his palms which facilitate his powers. He is a classic villain stereotype; he believes that, since he was born with superpowers, he should only use them to get whatever he wants instead of helping others (though he seems to draw the line at blatant murder).

After a failed attempt to absorb Gwen's powers in his first appareance, his face was permanently zombified, forcing him to wear a metal mask and is now calling himself Darkstar, claiming that Micheal Morningstar no longer exists. Over the weeks, his hunger and powers grew stronger than ever. While he seems to have lost his ability to fly and no longer transform people in zombies, he can now manipulate dark energy and can absorb the life force from people through that energy when they touch a living being.

Since his first appareance, Darkstar has become a recurring villain. His motivations usually involve taking revenge on Ben and the others (more especially Gwen), as well as trying to get back his original beautiful face. However, in the season 2 final, he agreed to shortly team up with them against the Highbreed in exchange of his liberation.

Pickaxe Aliens

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The Pickaxe aliens are Vulkanus's loyal henchmen. Their name comes from the large pickaxes they use to dig for their master or as weapons.

Argit

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Argit is a rodent-like alien who was one of Kevin's former associates and a minor criminal. Apparently he used to be Kevin's friend. In a strange condition, he has the body of a large rat with porcupine quills on his back which can be launched as projectiles. He has the ability to paralyze and put others to sleep using his quills, which seem to have some kind of soporific (but non-lethal) venom, though if these quills are launched back at him, it'll disable him in the same way. Judging by the way he and Kevin act to one another, they share a business partnership with one another, though Argit would not hesitate to trick Kevin if it's in his interest, something Kevin is aware of but strangely doesn't really care. He's a known conman who seems to always owe someone money, thus he's normally seen trying to make money ether for his own gain or to pay off his debts. His greed is such that, according to Kevin, he sold his mother for money (though Kevin may have been joking, it would fit Argit's personality).

Techadon

Techadons are tall, dangerous battle robots with unknown origins. They have got superhuman strength and durability, excellent firepower and the ability to repair themselves when damaged, apparently by attaching to an organism and building themselves back up around them. Little is known about them. Since they are just seen fighting against the heroes, it's never explained where they come from or who sends them.

Incursions

The Incursions are a species of frog-like aliens that live on war and death. They are responsible for the destruction of dwarf-planet Pluto. Incursions are highly sensitive to the smell of smoke. With one whiff of it, they cough and then drop. Even though the Incursions use criminal activities the plumbers don't touch them (Suggesting that the Incursion have powerful political abilities.) they are led by Emperor Milleous. He was briefly overthrown by his daughter and the bounty hunter Seven-seven, but thanks to Ben as Swampfire making Seven-Seven retreat Milleous was able to retake the throne.

Albedo

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Albedo is a brillant but arrogant and rude Galvan that shows sociopathic tendencies. At one point, he was the assistant to Azmuth, whom he asked for an Omnitrix of his own. When Azmuth refused, he built one of inferior quality and synchronized it to work exactly like Ben's; unfortunately, as Ben's form is the default, Albedo was transformed into a clone of Ben. As a result, he also developed many of Ben's habits (such as a craving for chili fries, and his left eye twitches when he lies). Disgusted, he tried to get Ben's Omnitrix in his first appearance, believing it would be able to turn him back to his original form. When Ben refused, he tried to kill him, causing them to fight twice. Albedo's human form was damaged during the second fight when their Omnitrixes fused to each other, causing him to have reversed colours (red jacket instead of green, white hair instead of black/brown and black lines on jacket instead of white). Azmuth then broke Albedo's false Omnitrix and sent him into a plumber prison, still stuck in his human form as a punishment.

Albedo escapes from the Null Void, teams up with Vilgax, steals the Ultimatrix from Azmuth, and completes it. After being further annoyed with the fact that the Ultimatrix menu also did not have a Galvan in it and had only Ben's current aliens, he and Vilgax orchestrate Gwen and Kevin's capture in order to obtain Ben's Omnitrix. However, after Vilgax eventually betrays him, Albedo is forced to give Ben the Ultimatrix when Ben threatens to blow him up with the Ultimatrix self destruct system. His fate is unknown after Ben acquires the Ultimatrix, though it can be assumed he made it off the ship.

Psyphon

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Psyphon is an alien with one large horn protruding from his head and has a slight skeletal appearance. He serves as Vilgax's lackey and adviser, helping his master with draining the powers from the defeated heroes. Nothing much is known about him and his personality, but he appears as devoted to Vilgax, and shows sign of arrogance toward Earth people, including Ben.

Vreedle Brothers

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Octagon Vreedle and his brother Rhomboid "Boid" Vreedle are an army of clones of two alien brothers, all of which work as "Repo" men. The Octagons are slimy and the most intelligent of the duos , while the Rhomboids are fat and naive. Though using a quite powerful arsenal, they are usually portrayed as stupid and incompetent.

 Cash and JT

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Cash and JT are recurring bullies from Ben's school. Cash Murray is taller and has darker skin, JT is short and wears glasses. They are modeled after series producers Sam Register and Tramm Wigzell.You could kind of call them villians.

 

 Aggregor

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Aggregor is a mysterious man who seeks to capture five aliens who all end up being stranded on Earth. He is first seen taking down Bivalvan off screen.