Generator Rex (2010–2013)
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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) »



Release Date:

25 November 2011 (USA) See more »

Company Credits

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Technical Specs


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Did You Know?


Wilhelm Scream: Providence Agent as Alpha throws him out of a jump jet. See more »


Ben Tennyson: Mr. Smoothie isn't here. That's messed up.
Rex: My partner's in a coma. If you're stressing over a frozen drink, you are *totally* getting punk busted!
Ben Tennyson: We're in Bellwood - my hometown, or it should be. But it's all different. Part of me hoped it wouldn't be. This pretty much proves it.
Rex: *This* doesn't prove anything.
Ben Tennyson: You know that friend you care about? Well, I have a cousin, a grandfather and a best friend that I care about. They don't exist here. I may never see them again. I'm totally alone. So go...
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References Ben 10 (2005) See more »

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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?

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