Warren Mitchell (born Warren Misell, 14 January 1926) is an English actor who rose to initial prominence in the role of bigoted cockney Alf Garnett in the BBC television sitcom Till Death Us Do Part (1965–75), and its sequels Till Death... (ATV, 1981) and In Sickness and in Health (BBC, 1985–92), all of which were written by Johnny Speight. He holds both British and Australian citizenship and has enjoyed considerable success in stage performances in both countries.
Mitchell was born in Stoke Newington, London. His father was a glass and china merchant. He is of Russian Jewish descent, but describes himself in interviews as an atheist who sometimes believes in God. He was interested in acting from an early age, and attended the Gladys Gordon's Academy of Dramatic Arts in Walthamstow from the age of seven. He did well at school and read physical chemistry at University College, Oxford, for six months. There he met his contemporary Richard Burton, and together they joined the RAF in 1944. He completed his navigator training in Canada just as the war ended.