Donald Jay Rickles (May 8, 1926 – April 6, 2017) was an American stand-up comedian, actor, and author. He became well known as an insult comic, but his pudgy, balding appearance and pugnacious style led to few leading roles in film or television. His prominent film roles included Run Silent, Run Deep (1958) with Clark Gable and Kelly's Heroes (1970) with Clint Eastwood, and beginning in 1976 he enjoyed a two-year run starring in the NBC television sitcom C.P.O. Sharkey.