Millard Mitchell (August 14, 1903 – October 13, 1953) was an American character actor whose credits include roughly 30 feature films and two television appearances. He appeared as a bit player in eight films between 1931 and 1936. Mitchell returned to film work in 1942 after a six-year absence. Between 1942 and 1953, he was a successful supporting actor. For his performance in the film My Six Convicts (1952), Mitchell won the Golden Globe Award for Best Supporting Actor – Motion Picture. He is also remembered for his role as Col. Rufus Plummer in Billy Wilder's A Foreign Affair (1948), as Gregory Peck's commanding officer in the war drama Twelve O'Clock High (1949), High-Spade Frankie Wilson in Winchester '73 (1950), as the fictional movie mogul R.F. Simpson in the musical comedy Singin' in the Rain (1952), and as a hapless old prospector in The Naked Spur (1953). Mitchell appeared frequently on Broadway, often playing a fast-talking Broadway character. He played the starring role in The Great Campaign (1947).