Daniel Louis 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 Fox Broadcasting Company animated sitcom The Simpsons. He also voices many other characters for the show like Abraham "Grampa" Simpson, Barney Gumble, Krusty the Clown, Sideshow Mel, Groundskeeper Willie, Mayor Quimby and Hans Moleman. Castellaneta also had roles in several other programs, including Futurama for Fox Broadcasting Company, Earthworm Jim for Kids WB, Sibs and Darkwing Duck for ABC, The Adventures of Dynamo Duck for Fox Kids, Back to the Future: The Animated Series for CBS, Aladdin for Toon Disney and Hey Arnold! for Nicktoons. In 1999, he appeared in the Christmas special Olive, the Other Reindeer, and won an Annie Award for his portrayal of the Postman. He released a comedy CD I Am Not Homer, and wrote and starred in a one-person show titled Where Did Vincent van Gogh?Daniel Louis Castellaneta was born on October 29, 1957 at Roseland Community Hospital on Chicago's south side and was raised in Oak Park, Illinois. He is of Italian descent, born to Elsie (née Lagorio; 1926–2008) and Louis Castellaneta (1915–2014). Louis Castellaneta was an amateur actor who worked for a printing company. Castellaneta became adept at impressions at a young age and his mother enrolled him in an acting class when he was sixteen years old. He would listen to his father's comedy records and do impressions of the artists. He was a "devotee" of the works of many performers, including Alan Arkin and Barbara Harris and directors Mike Nichols and Elaine May. He attended Oak Park and River Forest High School and upon graduation, started attending Northern Illinois University (NIU) in the fall of 1975. Castellaneta studied art education, with the goal of becoming an art teacher. He became a student teacher and would entertain his students with his impressions. Castellaneta was a regular participant in The Ron Petke and His Dead Uncle Show, a radio show at NIU. The show helped Castellaneta hone his skills as a voice-over actor. He recalled "We did parodies and sketches, we would double up on, so you learned to switch between voices. I got my feet wet doing voiceover. The show was just barely audible, but we didn't care. It was the fact that we got a chance to do it and write our own material. "He took a play-writing class and auditioned for an improvisational show. A classmate first thought Castellaneta would "fall on his face with improvisation" but soon "was churning out material faster than could make it work."

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