Andrew Keir (born Andrew Buggy, 3 April 1926 – 5 October 1997) was a Scottish actor, who appeared in a number of films made by Hammer Film Productions in the 1960s. He was also active in television, and especially in the theatre, in a professional career that lasted from the 1940s to the 1990s. He starred as Professor Bernard Quatermass in Hammer's film version of Quatermass and the Pit (1967). He also appeared in the big screen version of the Doctor Who story The Dalek Invasion of Earth, Daleks' Invasion Earth 2150 A. D. (1966). He originated the role of Thomas Cromwell in Robert Bolt's play A Man for All Seasons (1960). His obituary in The Times described him as possessing "considerable range and undeniable distinction."