Flint-eyed American character actor Ian MacDonald began appearing in films in 1941. The war interrupted MacDonald's screen career, but he was back at his post in 1947. Nearly always a villain on-screen, his most celebrated role was Frank Miller, the vindictive gunman who motivates the plot of High Noon (1952). Likewise memorable were his portrayals of Bo Creel in White Heat (1949) and Geronimo in Taza, Son of Cochise (1954). In films until 1959, Ian MacDonald also occasionally dabbled in screenwriting.