Allen Kelsey Grammer (born February 21, 1955), best known as Kelsey Grammer, is an American actor and comedian. He is most widely known for his two-decade portrayal of psychiatrist Dr. Frasier Crane in the NBC sitcoms Cheers (nine years) and Frasier (eleven years). He has been nominated for numerous Emmys, including one for playing Frasier Crane on three sitcoms (the third being a guest appearance on Wings), and has also worked as a television producer, director, writer, and as a voice artist. He has received many accolades for his role as Sideshow Bob on The Simpsons.