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This article is about Eon. You might have been looking for Eon from Race Against Time, who is the same character but with a retconned backstory.

Eon is an inter-dimensional timeline traveler and one of Ben's major adversaries. He is the arch-enemy of Professor Paradox, as well as an alternate and evil version of Ben. He first appeared in Ben 10,000 Returns.


In Ultimate Alien, Eon wears a silver helmet with a purple visor that blocks all view of his face, leaving only two glowing purple eyes visible. He retains the black bodysuit, but has silver boots, gauntlets, and a chestplate instead; a purple cape is also hanging off his shoulders. Underneath his helmet, Eon's unmasked face is identical to that of Ultimate Ben 10,000 due to the fact that he is another adult version of Ben.

In Omniverse, Eon retains the black helmet with its purple visor, but his face is visible through it, much like in Race Against Time. Eon's face also now looks radically different to Ben 10,000's, appearing highly aged or just repulsive; his face is long and thin, with a wide mouth, greyish skin, a flattened nose, dark lines under his eyes, and thin, black lips. He retains the silver gauntlets and boots, but there are also silver shoulder pads on his black jacket. He wears a black bodysuit, which has some purple lines and a silver collar that covers his entire neck.


Eon is essentially a psychopath. He is willing to mess up the timelines just to get what he wants, and if he can't rule, he is willing to destroy all of existence. Eon can be dangerously cunning and manipulative in combat, waiting throughout the physical fighting until the time is right for him to make a climatic move. Eon can also be very bloodthirsty, as when he thought that Vilgax was going to use his Chronosapien Time Bomb to erase No Watch Ben and his entire timeline, he was impressed and commented, "Nice!". He apparently has a long history with and a deep hatred of Professor Paradox, to whom he is in many ways equal yet inferior; while Eon can be very intelligent and can perceive the fragility of spacetime, unlike Paradox, he fails to recognize that the fullest power of a nigh-omnipotent device such as the Chrono Navigator is not something that can be exploited and controlled without cataclysmic consequences.

Eon is willing to work with other villains when their goals will benefit him in some way, but unfortunately for him, he fails to realize that the most evil and intelligent of said villains may have treacherous hidden agendas. These would have a detrimental effect on him once his usefulness has ended. He also fails to learn this from previous double-crossings that have happened to him; this was what allowed Vilgax to manipulate, exploit, and ultimately double-cross Eon during their partnership to wipe out the good Bens across the multiverse, with fatal consequences for Eon himself before No Watch Ben reversed all the damage. Eon also doesn't appreciate being backstabbed or duped, as shown when he, upon being restored from erasure by a Time Bomb, attacked Vilgax for playing and ultimately erasing him.


Eon was actually an alternate reality counterpart of Ben Tennyson who had become corrupted and evil. Like most of the other alternate versions of Ben, Eon originally had his own Omnitrix, but something bad happened to it, and he integrated the leftover parts from it into the device on his left arm.[1]

Ultimate Alien

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Eon vs Ultimate Ben as Clockwork

In Ben 10,000 Returns, it turns out that Race Against Time was in an alternate timeline. This Eon had been travelling through various different timelines, enslaving different versions of Ben wherever he found them, with the intention of becoming the one and only Ben in the entire spacetime continuum. When he came to the prime Ben (20 years from Ultimate Alien), Ben 10,000 used Clockwork's abilities to send himself 20 years earlier, to present day Ben.
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Eon defeated

The present and future Bens realized that Eon was hunting them from inside their Ultimatrixes. Eon was defeated when the Hands of Armageddon was destroyed by Jetray. Paradox stated that all the Bens Eon had absorbed would go back to their own timelines and return to normal.


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Eon vs Paradox

Eon returned in Ben Again, having been trapped in the main timeline by Paradox. Seeking to get hold of the time-walker's Chrono Navigator in order to have the freedom to traverse the multiverse once more, Eon went after Ben both when he was 11 and when he is 16 at the same time. During the battle in two time zones, Eon touched both Bens' Omnitrixes, causing the immature 11-year-old Ben to switch minds with his more mature 16-year-old self. Realizing Paradox wouldn't show up in the present day because the 11-year-old mind of Ben doesn't know him, Eon quickly went to 11-year-old Ben's time zone, where he ambushed Paradox and cut off his robotic right hand.

Eon held Paradox captive in another dimension for interrogation and, knowing that Paradox never lies, figured out that his missing cybernetic hand was his Chrono-Navigator. Originally planning to go back to the moment it was severed, Eon was warned against doing so by Paradox as it risked throwing him out of existence due to the fabric of reality being stretched thin by both of their presences and the switched minds of Ben.


Almost defeated

Eon instead went to the present day, where he stole the Chrono Navigator from the immature Ben once he found it. Eon used the chrono-navigator summon his minions, but Eon's abuse of the chrono-navigator's power began to seriously stretch and damage the fabric of time. As both the present time and the 11-year-old Ben's time were now visible through the distortions Eon had created, Eon was blasted out of the timeline by the 11-year-old and 16-year-old Bens' versions of Clockwork, restoring reality to normal and erasing all the events he had just caused to occur.

In And Then There Were None, Eon joined forces with Vilgax to, as Eon believed, create an army of evil Omnitrix-wielders under Vilgax's control, which Eon achieved through gathering an army of evil Ben Tennysons from all across the multiverse and destroying those among the alternate Bens who refused to join. After Vilgax and Eon had five evil versions of Ben under their control, they went to the No Watch Timeline, with Eon and the evil Bens intending to destroy No Watch Ben since his reality's lack of an Omnitrix made it an unpredictable temporal wildcard. However, while Eon and the evil Bens were fighting against a team of good Omnitrix-wielders gathered by Professor Paradox to counter them, Vilgax betrayed Eon; using a Chronosapien Time Bomb, Vilgax wiped all the other timeline, and their Bens with them, from spacetime, Eon included.

In And Then There Was Ben, Eon was seen in the recent past in Dimension 23, back when he was still recruiting alternate Bens for his and Vilgax's army. Eon was fighting Ben 23 for refusing to join, but with Gwen 10 and present No Watch Ben's unseen help, Ben 23 defeated Eon and forced him to flee to another dimension in search of more persuadable Bens. After Vilgax had successfully deployed the Chronosapien Time Bomb back in the present, Eon was brought back into existence when No Watch Ben used Clockwork to suck the Time Bomb's ripple back in. He attacked Vilgax and tried to finish him off for backstabbing him, but before he could have done it, Fourmungousaur swatted him away. At the end of the episode, he was sent back to his own timeline by Clockwork.

In Let's Do the Time War Again, Eon was sent by Maltruant to collect the eggs of a Time Beast to aid him in the Time War. Eon met up with Exo-Skull and Subdora to get the eggs but ran into difficulty with Ben and Rook's interference. Even more, Paradox and Ben 10,000 appeared to help stop Eon as well. Eon eventually released a Time Beast and Ben and Rook are forced to try and stop it. Eon mainly fought with Paradox and summoned his minions to fight Ben 10,000. Eon then managed to escape with two Time Beast eggs and deliver them to Maltruant.

In The End of an Era, Eon was summoned to Ben 10,000's Timeline by Maltruant, bringing with him a Time beast-pulled chariot. Maltruant pushed Eon off the chariot, telling him that his services were no longer required. Eon was angered, saying they had a deal. Maltruant responded by nonchalantly sending Eon back to his own timeline.

Powers and Abilities

Eon has the ability to travel through time, He can travel through alternate timelines and alternate dimensions, although excessive use of this ability can cause him to age faster and become weak. His time attacks are very dangerous, as they instantly age anything he touches. He is capable of teleporting and opening time portals.

He is also capable of producing an energy sword, and can fire beams of energy. He can also fire shockwaves.

Eon is stronger than he looks, he is also quite agile.

Eon is able to sense the ripple effect in time when Ben uses Clockwork's time powers.


Eon can be erased from existence by a Chronosapien Time Bomb if the Time Bomb targets his timeline.

He can also be banished back to his own dimension against his will by a powerful Chronosapien like Maltruant.


Ben 10: Ultimate Alien

Ben 10: Omniverse


An eon is a time measurement unit that involves multiple eras and is equal to one billion years. "Eon" is also an anagram for "One."


  • Eon is one of the few personal enemies of Paradox; he's clashed with Paradox many times in many different timelines and realities, each never being able to defeat the other.[2][3]

Similarities with other fanchises

  • Eon's motivations and plans in Ben 10,000 Returns are similar to those of the DC Comics supervillain Gog. Both are villains who travel through time and across dimensions, slaying alternate versions of a superhero wherever they find them. However, unlike Gog, who outright kills all the alternate Supermen he comes across, Eon simply enslaves all the Bens he runs into.
  • Eon is also similar to the Marvel Comics supervillain Morlun, who travels through alternate universes hunting and killing heroes with spider powers.
  • Eon's plot is also similar to that of the Jet Li film The One, again with the caveat that Eon enslaves his targets to absorb them rather than killing them.
  • Eon and Paradox's relationship is similar to the relationship between The Master and the Doctor from Doctor Who; as both parties are arch-enemies, both are time travelers, both possess similar powers, and one seeks to maintain peace while the other strives to destroy and conquer.


Vilgax DiagonLucubraConduit EdwardsEsoterica
BioidsDronesSquid Monsters
Zs'Skayr CrüjoKuphuluLord TransylMummyViktorYenaldooshi
Anur-Mirrored BenAnur-Mirrored CharmcasterAnur-Mirrored HobbleAnur-Mirrored RookMutant Pumpkins
Aggregor Aggrebots
Evil Bens EonAlbedoBad BenBenzarroEon's ServantsMad BenNega Ben
Faction Dr. PsychobosKhyberKhyber's PanuncianMalware
Rooters ServantisPhil BillingsRagnarokSwiftLeander
Mutated Kevin Kevin 11Kevin 11,000Ultimate KevinOmniverse Kevin
Incursean Empire MilleousAtteaRaffMajor Glorff
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Forever Knights DriscollEnochPatrickUrianCyrusJoseph Chadwick
ConnorDagonetDr. JekyllMortonReginaldTwin KnightsSquire
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Psyphon Bug-LiteBouncersBubble HelmetLiamGorvanMinion
Nightmarish AlienPiscciss Volann PrisonerPickaxe AliensSweet-Eels Sparklefunk
Hooded AlienThunderpigTummyhead
Magic AdwaitaCharmcasterDarkstarPallorfangScrutin
Highbreed Highbreed CommanderDNAliensXenocyteMizaruSimian
Vreedles MaPaOctagonRhomboidParallelogramIsosceles Right TriangleDodyPretty Boy
Bounty Hunters SixsixSevensevenEighteightSynthroidAztakSunderKraabVulkanus
Vengers Billy BillionsCaptain NemesisKangaroo KommandoMazumaSimonsWill Harangue
Lenopan Mr. MannMrs. MannCamille's Ex-BoyfriendMann Family's Bodyguard
Fistrick CorvoHoodlumFistrick's ThugFistina
The Hive Elena ValidusNanochipDecoy QueenEvil BuildingsShip It's Employee
Road Crew Baron HighwayTurbineRoad Rage
Zombozo Acid BreathFrightwigThumbskullZombie Clowns
Great One Enforcer AlienInterpreter AlienLeader Alien
Rojo's Gang RojoAzulAmarillo
Other Villains AntonioBenevelonBlue LeaderBuzzCharles ZenithClancyMayor ColemanCollectimusDr. DoomacusDuaneEvil Way BigGarbage MonsterPrince GyulaHammerHowell WaynerightHulex ColonelHulex WorkersInspector 13JackJarettJonah MelvilleKolarCaptain KorkKrakkenKundoLepidopterran PrisonerMaltruantMino-TogaMissyMorggMutant SeagullsMyceliumNyancy ChanOliver ThompsonPinkyPlant AlienPlant ClonesPoltroonPrisoner 775Red LeaderScooterSeebikSolid PluggSsserpentSubliminoSuemungousaurSunnySurgeonTetramand PrisonerTrans-Dimensional MonsterTrumbipulorViolet OffendersKing XarionYetta
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Future Dr. AnimoExo-SkullMot SnikrepSplootSubdoraVilgax
Alternate Dimension GorvanMad PakmarOrange Offenders
Generator Rex AlphaBlack KnightBiowulfI-BolSkalamander
Secret Saturdays V.V. ArgostMunya
Non-canon Snap DragonTwo-Headed SnakeVilgax (Gwen 10)
Alternate Bens
Primary Timeline
Ben PrimeBen 10,000
Other Timelines
Ben 10,000 (Ultimate Alien)Ben Tennyson (Race Against Time Timeline)EonEon's ServantsBad BenBenzarroNega BenNo Watch BenBen 23Mad BenBen Tennyson (Gwen 10)

Start a Discussion Discussions about Eon

  • Eon theory

    3 messages
    • I think the Omnitrix must have exploded during Eon's version of Secret of the Omnitrix. In this version Azmuth refused to depower ...
    • Good idea!
  • eon origin

    4 messages
    • Duh
    • Eon is an alternative version of ben who became evil and whose omnitrix was broken. But he did put the remaining pieces of the omnitrix in ...