Kelsey Grammer

Allen Kelsey Grammer (born February 21, 1955), best known as Kelsey Grammer, is an American actor best known for his two-decade portrayal of psychiatrist Dr. Frasier Crane in the NBC sitcoms Cheers (nine years) and Frasier (eleven years), and providing the voice of Sideshow Bob on the FOX animated series The Simpsons. He was nominated for Emmys for playing his character on three different sitcoms (the third being a guest appearance on Wings). He has also worked as a television producer, director, writer, and a voice artist.