Ben 10: Ultimate Alien

Ben 10: Ultimate Alien (formerly called Ben 10: Evolution and Ben 10: Ultimatrix ) is the third iteration of the franchise and the sequel of Ben 10: Alien Force (formerly called Ben 10: Hero Generation). It premiered on April 23, 2010. The art and story styles in this series is similar to Alien Force. The series follows 16-year old Ben and Gwen along with 17-year old Kevin. The series premiered in the United Kingdom, Australia, Asia, Middle East and Latin America on 10/10/2010 at 10:00 A.M. on Cartoon Network. This is also the day a marathon of the episodes came on with a contest for the 10/10/10 event in America. This series is followed-up by another sequel series called Ben 10: Omniverse.

Plot
Ben's secret identity has been revealed to the world and he is now an international mega-star super hero, loved by kids all-over the world, but distrusted by many adults such as reporter Will Harangue. Armed with a mysterious, more powerful Omnitrix called the Ultimatrix, Ben will face being hunted by rogue alien threats, human mercenaries, and assassins hired by opposing adults. Ben will be in places he has never been before; such as the Forge of Creation. The main enemy of the first season is named Aggregor who is after the "Ultimate Prize."

Characters
{| background-color="transparent" width="100%"
 * -style="vertical-align:top;"
 * width="33%"|

Main Characters

 * Ben Tennyson
 * Gwen Tennyson
 * Kevin Levin

Secondary Characters

 * Max Tennyson
 * Julie Yamamoto
 * Ship
 * Professor Paradox
 * Azmuth
 * Argit
 * Carl Tennyson
 * Sandra Tennyson
 * Natalie Tennyson
 * Verdona
 * Cash Murray
 * J.T.
 * Cooper Daniels
 * Bivalvan
 * Galapagus
 * P'andor
 * Andreas
 * Ra'ad
 * Jimmy Jones
 * Colonel Rozum
 * Eunice
 * Sir George
 * Winston

Others

 * Mrs. Jones
 * Pierce's Girlfriend
 * Carol Smith
 * Jeff
 * Mr. Webb
 * Yeti
 * Magister Prior Gilhil
 * foreverduke838
 * Magister Labrid
 * Lucy
 * Trina
 * Jennifer Nocturne
 * Magister Pyke
 * Blowfish
 * Sentinel
 * Serena
 * Bellicus
 * Mother Celestialsapien
 * Baby Celestialsapien
 * Barry
 * Kwarrel
 * Quince
 * Trukk
 * Pa Vreedle
 * Magister Coronach
 * Alan Albright
 * Harvey Hackett
 * Baz-El
 * Fitz
 * Egor
 * Galvan Teacher
 * Magister Hulka
 * Brannigan
 * Emily
 * Pierce Wheels
 * Mr. Baumann
 * Haplor
 * Hugh
 * Swamps
 * Fridge
 * Vilgax Actor
 * Gwenettes
 * Cerebrocrustacean Actor
 * Piscciss Volann Actor
 * Gourmand Actor
 * Ishiyama
 * Mr. Yamamoto
 * Dr. Borges
 * Mechamorph Guard
 * Agent Locke
 * Agent Bryson
 * Centur Squaar
 * Zennith
 * Hex
 * Ignaceous
 * Spellbinder
 * Maureen Nocturne
 * Dr. Pervis

Alternate Future

 * Ben 10,000
 * Ultimate Ben

RAT Timeline

 * Ben Tennyson
 * Gwen Tennyson
 * Max Tennyson
 * width="33%"|

Main Villains

 * Aggregor
 * Diagon
 * Lucubra
 * Vilgax
 * Psyphon

Secondary Villains

 * Will Harangue
 * Zombozo
 * Carl Nesmith
 * Vulkanus
 * Pickaxe Aliens
 * Charmcaster
 * Stone Creatures
 * Darkstar
 * Adwaita
 * Albedo
 * Elena Validus
 * Victor Validus
 * Dr. Animo
 * Mutant Frogs
 * Mutant Chickens
 * Mutant Chicken Leader
 * Conduit Edwards
 * Esoterica
 * Vreedle Brothers
 * Octagon Vreedle
 * Rhomboid Vreedle

Forever Knights

 * Driscoll
 * Patrick
 * Connor
 * Urian
 * Enoch
 * Sir Dagonet
 * Sir Reginald
 * Sir Cyrus
 * Squire

Others

 * Sevenseven
 * Rojo
 * Azul
 * Amarillo
 * Ssserpent
 * Oliver Thompson
 * Buzz
 * Hammer
 * Surgeon
 * Simons
 * Morgg
 * Sunder
 * Strabismus
 * Sanctuary Guardians
 * King Xarion
 * Prince Gyula
 * Plant Alien
 * Plant Clones
 * Sunny
 * Antonio
 * Trumbipulor
 * Kolar
 * Eon
 * Eon's Servants
 * Synthroid
 * Prisoner 775
 * Prisoner
 * Simian
 * Mizaru
 * Milleous
 * Garbage Monster
 * Ma Vreedle
 * Dodecahedron Vreedle
 * Pretty Boy Vreedle
 * Inspector 13
 * Techadon Robots
 * width="34%"|

Regular Aliens

 * Alien X
 * AmpFibian (debut)
 * Arctiguana (unused)
 * Armodrillo (debut)
 * Big Chill
 * Blitzwolfer (unused)
 * Brainstorm
 * Buzzshock (unused)
 * Cannonbolt
 * ChamAlien (debut)
 * Chromastone
 * Clockwork (debut)
 * Diamondhead
 * Ditto (unused)
 * Eatle (debut)
 * Echo Echo
 * Eye Guy (unused)
 * Fasttrack (debut)
 * Four Arms
 * Frankenstrike (unused)
 * Ghostfreak
 * Goop
 * Grey Matter (unused)
 * Heatblast
 * Humungousaur
 * Jetray
 * Jury Rigg (debut)
 * Lodestar
 * Nanomech
 * NRG (debut)
 * Rath
 * Ripjaws
 * Shocksquatch (debut)
 * Snare-oh (unused)
 * Spidermonkey
 * Spitter (unused)
 * Stinkfly (unused)
 * Swampfire
 * Terraspin (debut)
 * Upchuck
 * Upgrade
 * Water Hazard (debut)
 * Way Big
 * Wildmutt
 * Wildvine (unused)
 * XLR8

Ultimate Forms

 * Big Chill (debut)
 * Cannonbolt (debut)
 * Echo Echo (debut)
 * Humungousaur
 * Spidermonkey (debut)
 * Swampfire
 * Way Big (debut)
 * Wildmutt (debut)

Sentient Ultimate Forms

 * Sentient Ultimate Big Chill
 * Sentient Ultimate Cannonbolt
 * Sentient Ultimate Echo Echo
 * Sentient Ultimate Humungousaur
 * Sentient Ultimate Spidermonkey
 * Sentient Ultimate Swampfire
 * }

Vehicles

 * DX Mark 10
 * Kevin's Car
 * Rust Bucket 3
 * Rust Bucket

Episodes
Ben 10: Ultimate Alien lasted for 3 seasons with a total of 52 episodes. There was also one special.

Video Games

 * Ben 10 Ultimate Alien: Cosmic Destruction
 * Ben 10: Galactic Racing

Opening
The opening shows almost every alien that Ben has turned into along with the Ben 10,000 aliens. The background also shows clips from both Alien Force and Ultimate Alien episodes along with unseen scenes. It was confirmed by Dwayne McDuffie that the intro would not be changed to add in new aliens.

Errors

 * Alien X has black hands instead of white.
 * Ripjaws' appearance is different from his appearance in the show.
 * Wildmutt's lips are black instead of orange.
 * Ultimate Big Chill does not have an Ultimatrix symbol.

Trivia

 * Dwayne McDuffie said in his blog that the seventh episode of the second season would introduce the second season story arc, but once again due to Cartoon Network airing issues the story arc was split into two seasons.
 * On iTunes the icons of the following volumes include the following aliens: Volume 1 - Ultimate Humungousaur, Volume 2 - Ultimate Big Chill, Volume 3 - Ultimate Spidermonkey, Volume 4 - Rath, Volume 5 - Echo Echo.
 * The series finale finished on March 31, 2012 with the two-part episode, The Ultimate Enemy, being in memory of series developer and producer Dwayne McDuffie, who died during the production of the series.