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    17 Mind-Blowing Facts About Early '00s Cartoons That Will Make You Say, “I Had No Idea”

    Johnny...Quasar.

    1. The idea for The Adventures of Jimmy Neutron: Boy Genius came from a short John A. Davis and Keith Alcorn entered into a contest, Johnny Quasar.

    Nickelodeon

    2. Frankie Muniz played the voice of Chester on The Fairly Oddparents, but was then replaced by Jason Marsden.

    Nickelodeon

    3. The characters on Aqua Teen Hunger Force were initially written for an episode of Space Ghost Coast To Coast.

    TBS

    4. Will.I.Am produced and performed the theme song for Samurai Jack.

    Cartoon Network

    5. The "Mad Mod" episode of Teen Titans was based on Stanley Kubrick's A Clockwork Orange, and was voiced by Malcolm McDowell who played the main character in the film.

    Warner Bros.

    6. The names of Danny and his father Jack are based on the father and son Jack and Danny Torrance from The Shining which is why Danny's father always accuses him of being a ghost.

    Nickelodeon

    7. Jackson Publick and Doc Hammer are the only two people that write The Venture Bros. and they also direct and edit the show.

    Adult Swim

    8. The voices of Jake and Roseon America Dragon: Jake Long are played by Dante Basco and Mae Whitman who also played Katara and Zuko on Avatar: The Last Airbender.

    Disney

    9. There's a scene in The Grim Adventures of Billy & Mandy where Billy's dad was in the kitchen with a snake and he said the snake was trying to eat his bismark, but that never made the cut.

    Cartoon Network

    10. According to Invader Zim's creator, Jhonen Vasquez, his characters Dib and Gaz are Mexican.

    Nickelodeon

    11. Code Lyoko came from an animated short Thomas Romain and Tania Palumbo did in college entitled Les Enfants Font Leur Cinéma.

    Annecy International Animated Film Festival / Via youtube.com

    12. Foster's Home for Imaginary Friends earned seven Emmy nominations, and won five.

    Cartoon Network

    13. It takes a team of about 200 people to make Robot Chicken.

    Cartoon Network

    14. Hayley on American Dad is played by Seth MacFarlane's sister Rachael MacFarlane.

    Fox

    15. The creator of The Boondocks, Aaron McGruder, co-wrote on the movie Red Tails for Lucasfilm after repeatedly making jokes on the show about George Lucas selling Star Wars to Disney.

    Adult Swim

    16. Ex-Prime Minister of the United Kingdom, Gordon Brown once said he couldn't get the Ben 10 theme song out of his head.

    Cartoon Network

    17. The scientists who found Coco on Foster's Home For Imaginary Friends were drawn to look like grown-up versions of Dexter and Mandark on Dexter's Laboratory.

    Cartoon Network

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