Generator Rex (2010–2013)
3 user

Ben 10/Generator Rex: Heroes United 

Ben Tennyson falls through a wormhole and encounters Rex. The two heroes must unite against a foe that can absorb their powers.


Man of Action, Rob Hoegee (story editor) | 4 more credits »




Episode cast overview:
Daryl Sabara ... Rex (voice)
Yuri Lowenthal ... Ben Tennyson / Upgrade / Additional Voices (voice)
Wally Kurth ... Agent Six (voice)
Grey Griffin ... Dr. Holiday / Diane Farrah / additional voices (voice) (as Grey DeLisle)
John DiMaggio ... Bobo Haha / Rath / additional voices (voice)
J.K. Simmons ... White Knight (voice)
Michael Emerson ... Nanite Alpha (voice)
Jennifer Hale ... Black Knight (voice)
Freddy Rodríguez ... Caesar (voice)
Dee Bradley Baker ... Humungosaur / Diamondhead / Lodestar / Big Chill / Cannonbolt / Four Arms / Shocksquatch / Upchuck / Additional voices (voice)
David Kaye ... Additional Voices (voice)


Ben Tennyson falls through a wormhole and encounters Rex. The two heroes must unite against a foe that can absorb their powers.

Plot Summary | Plot Synopsis

Plot Keywords:

cartoon network | crossover | See All (2) »


Did You Know?


Other main characters of Ultimate Alien such as Gwen, Kevin and Grandpa Max do not make a full physical appearance but they are drawn in Generator Rex artstyle only to be seen in a flashback. See more »


Rex: Have anything to say to yourself before I commence with the face stomping?
Humungosaur: Yeah, you just made a *humongous* mistake!
See more »


References Ben 10: Ultimate Alien (2010) See more »

User Reviews

Nostalgia Overload!!!!!!! Love it!!!!!!!!
27 December 2019 | by sarahbear-60911See all my reviews

As a kid I loved both shows and I was psyched when I heard about this crossover. I really like all the cameos and references to both shows that are everywhere in this. (Ex. The scene where Ben and Rex explain their respective backgrounds to each other.) I really liked that Ben and his aliens were in the "Gen. Rex" art style and that both boys remained true to their personalities and backgrounds. Finally, the main villain is voiced by Michael Emerson!!! Seriously, what's not to love about this?

4 of 4 people found this review helpful.  Was this review helpful to you? | Report this
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Release Date:

25 November 2011 (USA) See more »

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