Dan Castellaneta

Daniel Louis "Dan" Castellaneta (born October 29, 1957) is an American actor, voice actor, comedian and screenwriter. Best-known for his long-running role as Homer Simpson on the animated television series The Simpsons, he voices many other characters on the show, including Abraham "Grampa" Simpson, Barney Gumble, Krusty the Clown, Groundskeeper Willie, Mayor Quimby and Hans Moleman. Outside of The Simpsons, he has also done notable voice work on other animated series such as Darkwing Duck, Earthworm Jim, Hey Arnold!, and Back to the Future: The Animated Series.