<P> David Feiss first created Cow and Chicken as a story for his daughter . Feiss was an animator who had worked with Hanna - Barbera and related projects since 1978 . </P> <P> Years later, Feiss was called to submit ideas for What a Cartoon!, a series of various animated shorts from numerous creators and writers . Feiss submitted three ideas to executive producer Larry Huber, one of which was Cow and Chicken . Cow and Chicken premiered on What a Cartoon! in 1995 . Later, Hanna - Barbera decided to turn Cow and Chicken into a full series, following many letters from fans asking for more . </P> <P> Cow and Chicken was notable in that a single actor, Charlie Adler, voiced three leading roles of Cow, Chicken, and the Red Guy . Supporting voices included Candi Milo and Dee Bradley Baker as Mom and Dad, and Dan Castellaneta and Howard Morris as Earl and Flem . </P> <P> Guest stars included Feiss, Will Ferrell, Carlos Alazraqui, Tom Kenny, Jill Talley, Dom Deluise, Michael Gough, Mark Hamill, Jess Harnell, Pamela Segall Adlon, and many others . </P>

Who does the voice of cow and chicken