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Throughout the Ben 10 franchise, various retroactive additions or alterations of the continuity (otherwise known as retcons) have been made. Below are listed some of the retcons made throughout the Classic Continuity, some of which were off-screen information subject to revision.

A retcon doesn't mean that a change is good or bad. A retcon is just new information that imposes a new interpretation of past events. Retcons aren't only limited to the changes that blatantly contradict on-screen information. Things can happen as the result of inconsistencies.

According to Matt Wayne, they take what they want and ignore what they don't like.[MW 1]

Ben 10: Alien Force

  • The Plumbers are now an intergalactic police force,[1] when it was established in the original series that they were a secret government organization comprised of humans only,[2] several of which had a racist attitude towards aliens.[3]
  • The workings of Kevin's powers have been altered. Instead of the mutant ability to absorb, store, and redirect energy as well as DNA, Kevin reappears in Alien Force with the ability to absorb physical materials and form a shell of that around his body.[1]
  • Gwen is revealed to be part alien, which explains her proficiency in magic, beyond her spellbook.[4]
  • The Omnitrix's hourglass-like symbol was previously a hallmark of Azmuth and his inventions, seen in his clothing and suit.[5] However, this was changed to represent all of Galvan.[6]
    • In relation to this, the Plumbers' badge is changed from being red to copies of the Omnitrix symbols.
  • It was implied that Myaxx and Azmuth were one of very few involved in the creation of the Omnitrix.[5] A far different picture is shown in Alien Force, where the Omnitrix's creation is portrayed as a funded publicly-known operation.
  • Kevin cannot create a shell of material without a substantial amount to absorb,[7] contradicting past events shown with him mass-producing Taydenite.[8]
  • Kevin's origins, compared to what was shown in the original series, have been altered for the series. He is now an alien hybrid, inheriting his powers from his father, Devin Levin, instead of getting them as a result of a mutation.[9]

Crew Statements' Retcons

  • The positioning of the Omnitrix/Ultimatrix symbols are the result of the devices working properly compared to the symbols' locations in the original series.[DM 1]
  • Vilgax was originally stated to be 15 feet tall.[AC 1] However, Humungousaur at his base height of 12 feet is shown to be the same size as him.[10]
  • Originally, Kevin's stepfather Harvey's last name was Levin.[DM 2] This is changed, as it is revealed that the Levin surname belonged to Kevin's biological father.[9]
  • The Action Pack comics were originally considered to be canon during the original series.[DR 1] As of Alien Force, they are deemed non-canon.[DM 3][CF 1]

Pop-up Retcons

  • Gwen's mother's name is Natalie instead of Lily.[pop-up 1][11]
  • In the original series, the Forever Knights were like "Anti-Plumbers", exploiting unusual threats instead of fighting them.[pop-up 2][12] In Alien Force, the Forever Knights are revealed to be highly xenophobic.[13]
  • Originally, Null Guardians were the only indigenous lifeforms in the Null Void.[pop-up 3][14] This is retconned with the introduction of the Null Void Settlers.[15]
  • Originally, the Omnitrix only held thousands of DNA samples.[pop-up 4][16] This was retconned two ways in Alien Force:
    • Firstly, the Omnitrix was revealed to be a wireless receiver for the Codon Stream instead of containing DNA.[10]
    • Secondly, the Codon Stream contained over one million DNA samples.[6]
  • The Chimera Sui Generi have been changed from what was established in the original series:
    • All female Chimera Sui Generi had a dark "beauty mark" somewhere on their center face tentacle,[pop-up 5][5] but none of the females seen in Alien Force have them.[17]
    • Most Chimera Sui Generi were trained from birth for combat[pop-up 6][14] and craved any chance for it,[pop-up 7][5] but in this series, Vilgax states that most of them are innocent people.[17]

Ben 10: Ultimate Alien

  • Charmcaster's motivation is expanded upon, with her father seemingly driving her actions throughout the previous two series.[18]
  • Rather than correlating with the way Kevin described him in Alien Force,[9] Harvey is actually a good person. Furthermore, Kevin was never kicked out of his house as a child. Instead, he went insane with power, destroyed the house, and ran away.[19]
  • Max describes himself getting recruited by an intergalactic form of the Plumbers, where it could have been assumed that the Plumbers originated from Earth and became intergalactic.[20]
  • The Nanochip queen featured in Ben 10: Alien Swarm is revealed to be a decoy created by the real queen to avert suspicion towards her. Elena's depiction is also heavily altered from what was shown in the film.[21]
  • While Azmuth's change in characterization in Alien Force compared to what was seen in the original series had not been explained prior, his entire demeanor is shown not to be the case of time's passage due to flashbacks.[22]
  • The Omnitrix featured in the original series and Alien Force is revealed to be a prototype, and Azmuth states that he has been working on the true Omnitrix, which Ben gains at the end of Ultimate Alien, since the timeframe of the former series.[23]

Crew Statements' Retcons

  • Originally, Alien X was not the most powerful being in the Omnitrix.[DM 4] This is retconned in Ultimate Alien, as absorbing the abilities of a Celestialsapien such as Alien X would grant Osmosians and other beings like Darkstar access to nigh-unlimited power.[24]
  • The Omnitrix symbols' grey and white coloration in the original series is stated to have been caused by a malfunction.[DM 5]
  • Originally, Harvey was implied to have been deceased.[DM 2] This has been changed in Ultimate Alien, as Harvey is shown to be alive.[19]
  • In Alien Force, Patrick was the Forever King of the line that directly flowed from the Knights' formation.[DM 6] This is retconned in Ultimate Alien, as it is revealed that Sir Cyrus' faction was the only faction that followed the way of the First Knight, Sir George.[25]
  • The events of Ben 10: Race Against Time were originally canon to the Prime Timeline.[DM 7] They have been retconned into an alternate timeline. As such, Eon's backstory has been changed (including his species).[26]
  • The Anur System aliens that Ben obtained during the original series (Blitzwolfer, Snare-oh, and Frankenstrike) were unlocked when the Yenaldooshi, the Mummy, and Viktor's DNA were transferred into the Omnitrix by touch.[27][28][29] This has been changed to having the Omnitrix "sample" their DNA, thereby unlocking transformations using DNA that already existed in the watch.[DM 8]

Pop-up Retcons

  • Eon's servants were supposedly warriors from all throughout time that Eon has turned abnormal creatures.[pop-up 8][30] In Ultimate Alien, they have been retconned into alternate versions of Ben successfully enslaved and controlled by Eon.[26]
  • Initially, female Galvans had hair while male Galvans did not.[pop-up 9][31] This is retconned with the introduction of Zennith, a female Galvan who does not have any hair at all.[22]

Ben 10: Destroy All Aliens

  • Although Gwen first performed a tracking spell when she was 15,[32] it is actually shown that her first time performing such a spell was when she was 10.[33]

Ben 10: Omniverse

  • In Alien Force and Ultimate Alien, two out of Alien X's three personalities needed to agree in order to perform an action.[34] In Omniverse, all three have to agree.[35]
  • In Ultimate Alien, Way Big's cosmic ray attack was executed by crossing his arms in an "L" shape, with his right forearm vertical and left forearm horizontal in front of it and the thumb edge of his hands facing his body.[36] In Omniverse, this move is slightly revised, as Way Big now crosses his arms in an "X" shape.[37]
  • Mr. Baumann once stated that he has not seen Ben since the latter was 12 years old.[38] This is retconned with an Omniverse flashback featuring 15-year-old Ben and Mr. Baumann interacting with each other.[39]
  • Despite Buzzshock appearing in the Ultimate Alien intro, he is treated as a new alien in Omniverse.[40]
  • In Alien Force and Ultimate Alien, Kevin needed a lot of whatever he copied to use his matter absorption powers.[7][DM 9] However, in Omniverse, he is shown coating his entire body with small amounts of material.[41][42]
  • Although it was established in Alien Force that Ben last saw Vilgax when he was 10,[43] a flashback showed that he had an encounter with Vilgax was when he was 11.[44]
  • The Celestialsapiens were previously stated to spend most of their time debating,[24] but Omniverse establishes that they have actively partaken in other matters, such as changing the art style of the universe at least twice.[45]
  • The Plumbers' Helpers now have different origins; they are shown to be humans whose appearances and DNA were altered when Kevin used his powers on them and their alien donors.[42]

Retcons From Previous Series Explained

  • The retcons made to the Omnitrix symbols' positioning in Alien Force are reversed. The limited positioning of the symbols were technical glitches in the original Omnitrix and Ultimatrix that caused the transformations to come out naked and cold. Fortunately, these errors were corrected in the current Omnitrix.[DJW 1]
  • The retcons made to the Omnitrix symbols' coloration differences are also revered. The reason the symbols were colored grey and white was because of a scratch guard that Ben did not know how to remove, which fell off off-screen after Ben 10: Destroy All Aliens.[DJW 2]
  • The retcons made to the Plumbers in Alien Force are explained and/or fixed. The original Earth Plumbers were a separate group until they joined the intergalactic Plumbers at some point between the events of the original series and Omniverse flashbacks.[46] While this helps with introducing alien Plumbers working at Earth bases, only the circumstances of Max joining the Plumbers remain unresolved.
    • In correlation to the retcons made to the Plumbers, the design of their badges have been reversed to look like their depiction in the original series because the hourglass symbol design used in previous series did not make any sense to the crew.[DJW 3]
  • The retcons made to Kevin in Alien Force are reversed. While Kevin is still considered an Osmosian, the term actually refers to a subspecies of human with a unique genetic component that gives them powers rather than a different species. Also, neither Devin Levin, the planet Osmos V, nor the sun Osmos exist because they were all fake memories implanted by Servantis.[47]

Crew Statements' Retcons

  • Originally, Tetramands seemed fairly Bronze Age-y for their level of technology.[MW 2] This was retconned in Omniverse, as Tetramands are shown to have a far more advanced civilization than humans.
  • Originally, Echo Echo was a robot-like alien.[DM 10] This is changed in Omniverse, as he is actually living sound waves wearing a containment suit.[DJW 4][DJW 5]
  • Initially, Ultimate Echo Echo did not have the ability to duplicate himself.[DM 11] This is explained and/or fixed, as he can only duplicate himself using his sonic disks[DJW 6] and was unable to do so in Ultimate Alien due to a glitch with the Ultimatrix.[DJW 7]
  • Initially, Vulkanus was small[DM 12] and wore flesh-colored prosthesis in the original series.[DM 13] This was changed in Omniverse, as he was originally large and muscular like the rest of his kind, until his fight with Ben lead him to being caught in an Element X-induced explosion. Vulkanus survived, but his body was destroyed, leading him to be put into a regeneration suit until he finally grows to full size.[48]
  • Rocks and Squidstrictor, who were introduced in a live-action stage production, were previously considered to be non-canon aliens.[DM 14][MW 3] They have been canonized in Omniverse, and are stated to be available in the Omnitrix.[DJW 8]
  • The events of Ben 10: Destroy All Aliens were previously non-canon to the Prime Timeline.[MW 4] They have been canonized to tie in with the Omniverse flashbacks.[DJW 9]
  • In the original series, Perk Upchuck was unable to consume human food.[49] This is retconned in Omniverse, as he can now eat normal food as well as everything else.[DJW 10]
  • In the original series, Blitzwolfer's tongue retracted and stowed itself away when his muzzle split.[TP 1] This is slightly revised in Omniverse, as his tongue stays in place and splits in half.[50]

Pop-up Retcons

  • Originally, XLR8 was the only Kineceleran on Earth because the slow rotation of the planet made other Kinecelerans sick after a few days.[pop-up 10][51] This is retconned, as several Kinecelerans reside in Undertown.[52]
  • In the original series, Peptos XI was originally described as a volcanic planet.[pop-up 11][53] This is no longer true, as Peptos XI generally has pink terrain.[54]
  • Originally, the Anur System had an anti-matter sun.[pop-up 12][55] However, this is no longer true, considering the massive cobweb structures lining the system.[56]
  • In the original series, it was stated that all Loboan cubs had green eyes, whereas adults had red and pale orange eyes.[pop-up 13][27] This is retconned, as the Loboans seen on Anur Transyl have eyes of varying colors.[56]
  • Originally, Max's lucky Hawaiian shirt was given to him by Gwen's older brother, Ken.[pop-up 14][57] However, this is retconned, as Max was shown to be wearing the shirt as a young adult, long before Ken would have been born.[58]
  • Hex's skull facepaint was the same as that worn by the warriors of Bezel.[pop-up 15][11] This is retconned in two ways:
    • Firstly, Hex's facepaint is revealed to be a tattoo.[59]
    • Secondly, Bezel is revealed to be a person, not a civilization.[60]
  • The Charms of Bezel were not magic. Instead, they were advanced Bezelian technology that seemed magic to Earth.[pop-up 16][11] This is retconned, as Bezel is revealed to be a person.[60]
  • Frankenstrike was originally considered to be Ben's second smartest alien[pop-up 17][61], as he was one of the aliens Ben 10,000 used to build Ken's Omnitrix.[pop-up 18][62] This was retconned in Omniverse, as hyper-intelligence is not a common trait among Transylians. Therefore, Ben does not become any smarter as Frankenstrike.[DJW 11]

Merchandise Information Retcons


  • Dwayne McDuffie did not consider the changes made to the Plumbers in Alien Force to be an official retcon.[DM 15]
  • Most of the pop-up retcons seen in Omniverse are possibly due to the fact that the creative team on the show did not have all the information. Derrick J. Wyatt stated that he "tried to get a list of all those pop up facts a couple times but never got them"[DJW 12] and "[the creative team] want[ed] to be as in line with the original series as possible", indicating that some of the retcons might not have been made.[DJW 13]
    • For example, the creative team was unaware that Ben 10,000 had a daughter. Because of this, it was assumed by fans that she was retconned from existence. Derrick would years later change this, confirming that Gwendolyn does exist but "was [active] off-screen" when made aware of her existence.[DJW 13]
  • It is unknown if any of the glitch powers Derrick has mentioned are canon, as Matt Wayne seemed to be unaware of their existence.[MW 5]
  • The reason that many of the retcons seen in Omniverse had been made to change aspects of continuity to something closer to original series was because Derrick did not agree with the retcons that Dwayne McDuffie and Glen Murakami made for Alien Force and Ultimate Alien.[DJW 14]
    • For example, the Osmosians were retconned to a human subspecies for two reasons. The first was so they could be more in line with Kevin's portrayal in the original series. The second is because Derrick did not want every aspect of Ben 10 lore to be derived from aliens.[DJW 15]
    • Similarly, Derrick finds turning Gwen's magic powers into something alien-based (i.e. establishing her an as Anodite) a misstep that makes the overall universe of the franchise smaller and less interesting.[DJW 16]

See Also


  1. 1.0 1.1 Ben 10 Returns: Part 1
  2. Truth
  3. Big Fat Alien Wedding
  4. What Are Little Girls Made Of?
  5. 5.0 5.1 5.2 5.3 Ben 10: Secret of the Omnitrix
  6. 6.0 6.1 War of the Worlds: Part 1
  7. 7.0 7.1 Darkstar Rising
  8. Kevin's Big Score
  9. 9.0 9.1 9.2 Vendetta
  10. 10.0 10.1 Primus
  11. 11.0 11.1 11.2 Lucky Girl
  12. Ultimate Weapon
  13. Be-Knighted
  14. 14.0 14.1 Back with a Vengeance
  15. Voided
  16. And Then There Were 10
  17. 17.0 17.1 Ghost Town
  18. Where the Magic Happens
  19. 19.0 19.1 Absolute Power: Part 2
  20. Moonstruck
  21. Revenge of the Swarm
  22. 22.0 22.1 Solitary Alignment
  23. The Ultimate Enemy: Part 2
  24. 24.0 24.1 The Forge of Creation
  25. The Creature from Beyond
  26. 26.0 26.1 Ben 10,000 Returns
  27. 27.0 27.1 Benwolf
  28. Under Wraps
  29. Be Afraid of the Dark
  30. Ben 10: Race Against Time
  31. Gwen 10
  32. Ben 10 Returns: Part 2
  33. Ben 10: Destroy All Aliens
  34. X = Ben + 2
  35. So Long, and Thanks for All the Smoothies
  36. Absolute Power: Part 1
  37. Showdown: Part 2
  38. The Purge
  39. Special Delivery
  40. Max's Monster
  41. Mystery, Incorporeal
  42. 42.0 42.1 Weapon XI: Part 1
  43. Vengeance of Vilgax: Part 1
  44. Bengeance Is Mine
  45. Universe vs. Tennyson
  46. 46.0 46.1 Malefactor
  47. The Rooters of All Evil
  48. The Ballad of Mr. Baumann
  49. Ben 4 Good Buddy
  50. Secret of Dos Santos
  51. Ben 10,000
  52. The More Things Change: Part 2
  53. The Visitor
  54. Tummy Trouble
  55. Hunted
  56. 56.0 56.1 56.2 Rad Monster Party
  57. Perfect Day
  58. Blukic and Driba Go to Area 51
  59. Charm School
  60. 60.0 60.1 Third Time's a Charm
  61. The Return
  62. Ken 10
  63. Trouble Helix
  64. Of Predators and Prey: Part 1

Crew Statements

Matt Wayne

Dwayne McDuffie

Duncan Rouleau

Charlotte Fullerton

Derrick J. Wyatt

Tom Perkins

Audio Commentary



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