assisted in writing scripts and co-voice directing with Marmel during the second season. For cost efficiency due to the small budget and crew the series had, the majority of pre-production for the series—including animation, voice recording, and storyboarding—was done in Toronto. The majority of the character design direction was done by Mark Thornton and Todd Kaufman (co-creators of Grojband and Looped, and character designers for Total Drama). The animation for the show was provided by Elliott Animation, a Canadian animation studio previously working on the Teletoon's 6teen. A different group of animators, who work on revisions and interstitials, come from the Disney campus of Burbank in California, United States and Frederator Studios, producer of many Nickelodeon titles. As it's an American co-production by Disney, many actors that worked in Disney productions such as Kyle Massey, Jason Earles and Mitchel Musso guest starred as voice actors in the series. The music for the show was provided by Michael Tavera, who also created music for Time Squad and ¡Mucha Lucha!, while the theme song was written by Bob Boyle and Guy Moon (composer for Fairly OddParents and Danny Phantom), produced by Moon and performed by Kyle Massey. Many episodes of Yin Yang Yo! were directed by Fountain, Mark Ackland (a director of Clone High), Ted Collyer (also director of Clone High), and Chad Hicks (also director of Total Drama, and storyboard artist for Courage the Cowardly Dog). At the same time, the main established writing force was Steve Marmel (also executive producer) with the help of Trueheart, Aydrea ten Bosch (ChalkZone), Sib Ventress (Danny Phantom). Chris Romano and Eric Falconer, responsible for Spike's Blue Mountain State, and production of How I Met Your Mother and The Sarah Silverman Program, also participated on the writing of various episodes. Staff writers Evan Gore & Heather Lombard who penned Futuramas episode "Fear of a Bot Planet" (1ACV05) and The Adventures of Jimmy Neutron, Boy Geniuss episodes "Krunch Time" and "Brobot", lately dedicated their work for Lilo & Stitch: The Series, participated in the creative process of Yin Yang Yo! as well. As the series went on, Bart Jennett (Recess) became a producer and writer on the series, with many other freelance writers joining like Danielle Koenig and Rob Hummel (Invader Zim), Dave Newman and Joe Liss (Drawn Together and SpongeBob SquarePants), Amy Wolfram (Teen Titans and Xiaolin Showdown), Scott Sonneborn (Beavis and Butt-Head and Undergrads),