Ben 10: Ultimate Alien

Ben 10: Ultimate Alien is a sequel series to Ben 10: Alien Force. It premiered on April 23, 2010. The style in this series is different from the Alien Force series. This follows a now 16-year old Ben and Gwen, and 17-year old Kevin. 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 new Omnitrix, called the Ultimatrix, and being hunted by rogue alien threats and human mercenaries and assassins hired by opposing adults, Ben 10 will be in places he has never been before. It went under the working title, Ben 10: Evolution.The main enemy is named Aggregor who is after a 'ultimate prize'.

A new feature in the series is Ben's new car (as revealed in Ben 10: Alien Swarm), as well as a jet flown by Kevin.

Main characters

 * Ben Tennyson
 * Gwen Tennyson
 * Kevin Levin

Villains

 * Aggregor
 * Aggregor's soldiers
 * Argit
 * Buzz
 * Charmcaster
 * Dr. Animo
 * Forever Knights
 * Sir Dagonet
 * Hammer
 * King Urian
 * Oliver
 * Overlord
 * Rojo
 * Rojo's Gang
 * Sevenseven
 * Ssserpent
 * Surgeon
 * The Stalker
 * Vulkanus
 * Will Harangue
 * Zombozo

Recurring characters

 * Julie Yamamoto
 * Max Tennyson
 * Carl Tennyson
 * Sandra Tennyson

Original Aliens from Ben 10: Alien Force

 * Swampfire
 * Brainstorm
 * Echo Echo
 * Jetray
 * Cannonbolt
 * Humongousaur
 * Rath
 * Big Chill
 * Chromastone
 * Goop
 * Spidermonkey
 * Upchuck
 * Lodestar
 * Nanomech
 * Way Big

Currently Unused Aliens

 * Alien X
 * Diamondhead


 * Ghostfreak

Additonal Aliens

 * Wildmutt


 * Fourarms


 * Water Hazard


 * AmpFibian


 * Armodrillo

Unused Additional Aliens

 * NRG


 * Terraspin

Ultimate Forms

 * Ultimate Spidermonkey


 * Ultimate Big Chill


 * Ultimate Humungousaur


 * Ultimate Cannonbolt
 * Ultimate Swampfire
 * Ultimate Echo Echo

Other Aliens shown on the opening theme

 * Heatblast
 * XLR8
 * Grey Matter
 * Stinkfly
 * Ripjaws
 * Upgrade
 * Wildvine
 * Spitter
 * Buzzshock
 * Articguana
 * Benwolf
 * Benmummy
 * Benvicktor
 * Ditto
 * Eye Guy

Episodes
Ben 10: Ultimate Alien season 1 Episodes

Vehicles

 * Kevin's car
 * DX Mark 10
 * The Mecha-Vehicle
 * Rust Bucket

Opening
The opening shows all the aliens Ben has ever turned into.

Trivia

 * It is the first series for Ben not to start-off with only ten aliens.