Alien X
General Information
Species Celestialsapien
Home World Forge of Creation
DNA source Atlas
Body Humanoid
Powers and Abilities
Abilities Omnipotence
Alien Number 32
Voice Actor Yuri Lowenthal (Ben, Albedo)
Jeff Bennet (Bellicus)
Tara Strong (Serena)
Kevin Conroy (Compositus)
Vicki Lewis (Invidia)
First Appearance Unknown
Alien X is the Omnitrix's 1.5 DNA sample of a Celestialsapien from the Forge of Creation in Ben 10: Omnitrix Unlimited. He is the Dimension 1 equivalent of Alien X.


Ben as Alien X


Alien X did not appear before the Omnitrix's 1.5 recalibration in Ben 10: Across the 23rd Dimension, so his appearance remains unknown.


Alien X has his Alien Force/Ultimate Alien appearance.

Albedo as Negative Alien X

Negative Alien X has Alien X's Alien Force/Ultimate Alien appearance, but the white outline is red.

Bellicus is replaced by Compositus, the Voice of Calmness and Placidity. He has Bellicus's Alien Force/Ultimate Alien appearance, but he is red and has a meek smile.

Serena is replaced by Invidia, the Voice of Hate and Apathy. She has Serena's Alien Force/Ultimate Alien appearance, but she is red and has a maniacal grin.

Transformation Sequence

Ben as Alien X

Ben slams down the Omnitrix's 1.5 dial and is engulfed in a green light.

As the transformation track begins playing, a light green orb, with lightning surrounding it, travels closer and closer to the camera, until it explodes. Ben hovers in the space vacuum, with lots of tiny stars shining in the background. The camera zooms towards Ben's face, who closes his eyes, as many scenes (Ben gaining the Omnitrix, Four Arms fighting Tetramand Kevin, Cannonbolt destroying the Great One, Future XLR8 defeating Exo-Skull, Zs'Skayr erupting into flames, Way Big throwing Vilgax into space, Malware destroying Feedback, Ben transforming into Swampfire, Ben and Reinrassic III working together, Ben using the Omnitrix to cure the Highbreed, Diamondhead defeating Vilgax, Ultimate Swampfire blasting Vilgax, Aggregor absorbing the Andromeda aliens, Ultimate Echo Echo using Sonic Doom on Ultimate Kevin, Sir George defeating Fasttrack, Inspector 13 hacking the Ultimatrix, Ultimate Way Big deflecting Diagon's lasers, Ben stabbing Vilgax with Ascalon, Gravattack defeating Fistrick, Khyber defeating Rath, Feedback destroying Malware, Way Big fighting the Way Bads, Atomix using Nuclear Winner on Negative Ultimate Spidermonkey, Metashift defeating Vilgax, MAL.W.A.R.E. exploding, Ben and Ester dancing, Maltruence breaking the time stream) flash rapidly one after the other. Ben clenches his fists, as the space around him begins to bend and twist, covering him from head to toe. His body becomes more muscular, as small stars align everywhere, with a white outline forming. The camera zooms towards Alien X's head, where three horns sprout out of it and he opens his green glowing eyes. The Omnitrix 1.5 symbol pops out of his chest, as Alien X stands completely still and releases a green energy wave, completing the transformation.

Powers and Abilities

Same as his canon counterpart. Alien X isn't scared by Toepick's face and can survive on Anur Vladias.


Same as his canon counterpart, with the exceptions listed above.


Ben 10: Omnitrix Unlimited




  • Credits for the Negative Alien X, Compositus and Invidia images go to ChromastoneandTabby.
  • Credits for the title card image go to Alanomaly.
Ben 10: Omnitrix Unlimited
Ultra3000 (Creator) - UltiVerse (Co-Writer)
Ben Tennyson - Gwen Tennyson - Kevin Levin - Rook Blonko
Dimension 1
Albedo - Eon - Faction (Doctor Psychobos - Khyber - Khyber's Anubian Baskurr) - Maltruence - Overlord
Sapient Transformations
Dimension -1
Dimension 1
Alien X - Alien XIII - AmpFibian - Arctiguana - Armodrillo - AssassinTen - Astrodactyl - Atomix - Ball Weevil - Big Chill - Blitzwolfer - Bloxx - Brainstorm - Bullfrag - Buzzshock - Cannonbolt - ChamAlien - Chromastone - Clockwork - Cloud 10 - Crashhopper - Decagon Vreedle - Diamondhead - Ditto - Eatle - Echo Echo - Eye Guy - Façade - Fasttrack - Feedback - Four Arms - Frankenstrike - Ghostfreak - Goop - Gravattack - Grey Matter - Gutrot - Heatblast - Humungousaur - Jetray - Jury Rigg - Kickin Hawk - Lodestar - Metashift - Mole-Stache - Nanomech - NRG - Pesky Dust - Persuader - Portaler - Pursuant - Quantum - Rath - •REC - Ringmaster - Ripjaws - Rocks - Rookie - ɿoɿɿiM - Sandbox - Scorch - Shellhead - Shocksquatch - Shroud - Skidmarx - Slick Stick - Snakepit - Snare-oh - Spidermonkey - Spitter - Squidstrictor - Stinkfly - Swampfire - Terraspin - The Most Useless Alien Of All Time - The Worst - Toepick - Under the Skin - Upchuck - Upgrade - Vaccine - Walkatrout - Water Hazard - Way Big - Whampire - Wildmutt - Wildvine - Wither - XLR8 - Yin Yang
Ultimate Arctiguana - Ultimate Big Chill - Ultimate Cannonbolt - Ultimate Diamondhead - Ultimate Eatle - Ultimate Echo Echo - Ultimate Goop - Ultimate Gravattack - Ultimate Heatblast - Ultimate Humungousaur - Ultimate Rath - Ultimate Spidermonkey - Ultimate Swampfire - Ultimate Water Hazard - Ultimate Way Big - Ultimate Wildmutt
Dimension 7
Bro Chill - Hawk Bro - Mixtape Bro
Dimension 12
Dimension 23
Alien 13 - Barnacle Man - Brainicrab - Clockwork - Frog Meister - Moth Man - Nuke-In-A-Box - Pile-o'-Goo - Plantfire - Speedraptor
Super Awesome Plantfire
Dimension 67
Alien ΙΓ - Diamondhead
Dimension 99
Blaze - Bloodstrike - Chamolizard - Clockwork - Fastah - Living Amplifier - Rage - Spider-Mankey - Stinkplant
Superior Living Amplifier
Dimension 131
Dimension 616
Dimension 999
Scream - Shredd - Slasher - Sludge
Dimension 2030
Diamond Arms (Diamondhead - Four Arms) - Ghostgrade (Ghostfreak - Upgrade) - Snarevine (Snare-oh - Wildvine) - XLR-Wolf (XLR8 - Blitzwolfer)
Dimension 3000
Chemix - Crystal Rock - Crystalshard - Shriek
Non-Sapient Transformations
Dimension 1
Buglizard - Crabdozer - Hypnotick - Mucilator - Omnivoracious - Panuncian - Root Shark - Slamworm - Terroranchula - Tyrannopede - Vicetopus
Ultimate Hypnotick - Ultimate Panuncian
Season 1 Episodes
An Unexpected Upgrade - Welcome To College, Rook - It's...Echo Echo Time! - Time To Go Useless - Anger Management - You Are Begging For Trouble - The Negative Effect - A Day in the Life of A Hero - Highbreed Invaded: Part 1 - Highbreed Invaded: Part 2
Season 2 Episodes
99 For A Change - Ben Quest - Ben 10: Across the 23rd Dimension - F.A.I.L. - Lights Out - Catfight...Again?! - Mind Over Matter - I Hate Time Travel - Forever Lost - No Hope - The End of Time

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