Ronald Leigh-Hunt (5 October 1920 – 12 September 2005) was a British film and television actor.His father was a stockbroker and he attended the Italia Conti Academy. He began acting whilst serving in the army. Though never a major star, he appeared in over a hundred television and film productions over a forty-year period, including as King Arthur in The Adventures of Sir Lancelot in the mid-1950s, and General Hospital in the early 1970s. He appeared in Danger Man and twice in Doctor Who, as Commander Radnor in The Seeds of Death (1969) and as Commander Stevenson in Revenge of the Cybermen (1975); and starred as Colonel Buchan in every episode of the 1960s and 1970s children's TV series Freewheelers. Later he appeared in "You Lose Some, You Win Some", an episode of series 2 of Minder. His film appearances included The League of Gentlemen (1960), Le Mans (1971) and The Omen (1976). In his later years he was a familiar sight at the Green Room Club where he was an honorary member.His cousin is the actress Barbara Leigh-Hunt.