You may have seen some of these shows but did you recognize the characters voices? Here are some interesting actors who have done voice over work that you might not know about. Pretty good list of actors and actresses too.
Tom Petty as Lucky on "King of The Hill"
Martin Sheen as Sly Sludge on "Captain Planet"
Kristen Schaal as Mabel Pines on "Gravity Falls"
Ashley Tisdale as Candace on "Phineas and Ferb"
Stephen Colbert as Professor Impossible on "The Venture Bros."
Jane Krakowski as CatDog's Mother in "CatDog"
Rider Strong as Brick on "Kim Possible"
Soleil Moon Frye as Zoey on "The Proud Family"
Elijah Wood as Ethan on "American Dad"
Bryan Cranston as Dr. Fist on "The Cleveland Show"