Raymond was born in Brixton, London. After training at RADA, he worked with the Royal Shakespeare Company, and made his film debut as Cliff Lewis in Tony Richardson's film adaptation of John Osborne's Look Back in Anger (1958), opposite Richard Burton and Claire Bloom. Subsequent films included: The Moonraker (1958), Suddenly, Last Summer (1959), El Cid (1961), The Playboy of the Western World (1962), Jason and the Argonauts (1963), and The Greatest Story Ever Told (1965), as the apostle Simon bar Jonah who became Peter the Rock.