Generator Rex

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Generator Rex
Genre Science fantasy
Created by Man of Action
Voices of Daryl Sabara
Troy Baker
Grey DeLisle
John DiMaggio
Wally Kurth
Fred Savage
J.K. Simmons
Theme music composer Kevin Manthei
Opening theme "Revolution", performed by Orange
Composer(s) Kevin Manthei
Country of origin United States
Original language(s) English
No. of seasons 3
No. of episodes 60 (list of episodes)
Executive producer(s) For Cartoon Network Studios: Brian A. Miller and Jennifer Pelphrey
For Cartoon Network: Tramm Wigzell, Rob Swartz (Season 1–2), and Rob Sorcher
Producer(s) Ryan Slater
John Fang (supervising producer)
Running time 22 minutes
Production company(s) Cartoon Network Studios
Distributor Warner Bros. Television Distribution
Original network Cartoon Network
Picture format 1080i (16:9 HDTV)
Original release April 23, 2010 (2010-04-23) – January 3, 2013 (2013-01-03)
Related shows Ben 10: Ultimate Alien
External links

Generator Rex is an American animated science fantasy television series created by Man of Action for Cartoon Network. John Fang of Cartoon Network Studios serves as supervising director. It is inspired by the comic M. Rex, published by Image Comics in 1999. The series premiered in the United States on April 23, 2010, on Cartoon Network. Generator Rex is rated TV-PG-V.[1] The last episode of the series aired January 3, 2013.


Five years prior to the series, a massive explosion released high concentrations of nanites into the atmosphere, infecting almost every living thing on Earth. These nanites may randomly activate inside their hosts, mutating the subject into a monster known as an E.V.O. (short for "Exponentially Variegated Organism"). Though some E.V.O.s retain human-level sanity, intelligence, and memory and are in full control of their special E.V.O. abilities, most transform into monster-like creatures and go violently berserk, causing widespread chaos and destruction. An international military-style organization known as Providence exists to combat the E.V.O. threat.

Rex is a fifteen-year-old (sixteen, later on in the series) amnesiac teenager who is a permanent E.V.O. Unlike most E.V.O.s, he lacks any physical deformation but has forgotten his past. He is also able to control his active nanites, allowing him to manifest from his body a wide variety of various bio-mechanical abilities and powers. Rex has the unique ability to deactivate nanites inside other E.V.O.s, effectively curing them of their monstrous mutations and returning them to normal. Working for Providence under Agent Six, Rex uses his unique abilities to stop and cure rampant E.V.O.s. His archenemy, Van Kleiss, is an E.V.O. scientist who despises Providence and is connected to the original nanite explosion (which is noted as simply "The Nanite Event" throughout the series.) His ultimate goal is for him and all fellow E.V.O.s to dominate the world.



  • Rex Salazar: The title character of the show. He is a willful, carefree, easygoing person of Hispanic origin; half Argentinean and half Mexican. He is the second child and youngest son of Rafael and Violetta, who had died five years prior to the series. At the young age of ten, he was fatally hurt in an unspecified industrial accident. To save his life, his parents and older brother, Caesar, had infused him with the original batch of fully programmed, highly evolved nanites, which granted him several unique technopathic and mechanical abilities as side effects. His girlfriend is Circe.
  • Six: The sixth most dangerous man on the planet. He has romantic feelings for Rebecca Holiday.
  • Dr. Rebecca Holiday: The scientist at Providence and Rex's caretaker. She has a younger sister, Beverly, who turned incurable E.V.O. at thirteen. She has romantic feelings for Six.
  • Bobo Haha: An E.V.O. monkey with the ability of human speech. He is Rex's sidekick and fellow prankster.
  • White Knight: The hardhearted leader of Providence.


  • Noah Nixon: A non E.V.O. who has cropped blonde hair and pale blue-green eyes. He is Rex's first best friend who was initially working for White Knight to "keep an eye on Rex." He has a thing for Claire.
  • Van Kleiss: The main villain of the series, and Rex's archenemy.
  • Biowulf: A bio mechanical wolf-like E.V.O. who is the most loyal and devoted member of Van Kleiss' followers, the Pack.
  • Breach: A young E.V.O. girl with four arms, pale white skin, and the ability to create red portals to any destination.
  • Skalamndar: A green E.V.O. that can project dozens of crystals.
  • Caesar Salazar: The eccentric, slightly mad scientist and older brother of Rex. He was first referenced in "Dark Passage" by Dr. Gabriel Rylander.


  • Circe: Rex's one and only love interest/girlfriend in the show. She is a human-looking E.V.O. with unusually strong powers over sound and certain types of songs which she uses to allure and summon fellow E.V.O.s to her. She finally admits her true romantic feelings for Rex, in the form of a passionate kiss, in "Assault on Abysus."
  • Claire Bowman: A teenage student in high school with Noah, who has a crush on her.
  • Annie: A good friend of Claire's who possesses supernatural clumsiness.
  • Tuck: An old companion of Rex and his old street gang who reside in Hong Kong, China. He is a mummy-like E.V.O. who can elongate his limbs.
  • Skwydd: A squid-like E.V.O. with pale green skin and tentacles. He can emit smoke-like ink from his mouth for cover.
  • Cricket: A cricket-like E.V.O. who has had a crush on Rex for a long time. She is good "girlfriends" with Circe, and likes going her hair and nails.
  • Beverly Holiday: The younger sister of Dr. Holiday who became a mindless E.V.O. at thirteen. Although incurable, she was finally cured in "A Family Holiday" and reunited with her elder sister. She likes the band Trendbenders.
  • Black Knight: The main villain of Season Three. She has blue-black hair in a bob cut and is the new leader of New Providence, replacing White Knight six months in the future. She is very power-hungry and crafty in order to achieve her sinister goals for absolute power.



Generator Rex currently does not air on Cartoon Network. Episodes 54 through 60 were released on iTunes for purchase before they aired. The show "ended" with its third season, but had left out many important things unresolved before the two-part Season 3 finale "Endgame."

Seasons Episodes First aired Last aired
1 21 April 23, 2010 (2010-04-23) December 10, 2010 (2010-12-10)
2 19 February 4, 2011 (2011-02-04) November 4, 2011 (2011-11-04)
3 20 November 11, 2011 (2011-11-11) January 3, 2013 (2013-01-03)


On July 11, 2011, the schedule for the 2011 San Diego Comic-Con revealed that during Cartoon Network's panel, a crossover special between the Ben 10 and Generator Rex series titled Ben 10/Generator Rex: Heroes United would be discussed. During the conference, show creators "Man of Action" revealed that the crossover would be a special, extended episode of Generator Rex, which aired on November 25, 2011.[2][3] The double-length special[4] revolved around Ben and Rex fighting a villain, originally created by Rex's older brother Caesar, the Alpha Nanite.[5]


The series first aired in India on January 16, 2011.[6]

Other media[edit]

Home video[edit]

Warner Home Video released Volume 1 DVD, a two-disc set that contains the first nine episodes of the series on October 19, 2010.[7]

Video game[edit]

A video game, entitled Generator Rex: Agent of Providence, has been developed for Wii, PlayStation 3, Nintendo DS, Nintendo 3DS and Xbox 360. The game was released on November 1, 2011 in the United States, published by Activision.[8][9] The plot involves Van Kleiss attempting to find blueprints to build an Omega-One Nanite. All voice actors reprise their roles from the series. Agent of Providence was given an E10+ rating by ESRB.[10] The game was also scored by the series' composer, Kevin Manthei.[11]

Toy line[edit]

Mattel has produced a toy line based on the series. For the main figures each is approximately 4 inches tall and packaged with an ordinary day E.V.O. There were also deluxe figures, EVO attack packs, as well as other waves and lines that were never released including a line from MEGA Bloks was announced (in 2010) featuring construction sets.[12]


Cartoon Network has featured Generator Rex and Ben 10 in their and DC Comics's Cartoon Network: Action Pack comic books.[1] Two 3D picture books (featuring cardboard 3D glasses) "EVOs and Heroes," a whole analysis on characters and their abilities and "The Swarm," an adaption of the episode of the same name, where Rex must fight insect E.V.O.s that feed on metal, have also been released.[1] For beginning readers, the story "Leader of the Pack" is also based on an episode and features Rex and Bobo being captured and locked in an underground prison cell.[1]

In February 2013, IDW Publishing announced a partnership with Cartoon Network to produce comic books and issues based on its properties. Generator Rex along with Ben 10 was one of the titles announced to be published.[13]


Year Award Category Recipients and nominees Result
2010 62nd Primetime Emmy Awards Outstanding Individual in Animation Chu-Hui Song and Nora Murphy-Breden for the episode "The Day That Changed Everything" Won

See also[edit]


External links[edit]