From Wikipedia the free encyclopedia Millard Mitchell August 14 1903 October 13 1953 was an American character actor whose credits include roughly thirty feature films and two television appearances Born in Havana Cuba Mitchell appeared as a bit player in eight films between 1931 and 1936 He returned to film work in 1942 after a sixyear absence Between 1942 and 1953 Mitchell was a successful supporting actor For his performance in the 1952 film My Six Convicts Millard Mitchell won the Golden Globe Award for Best Supporting Actor Mitchell is also known for his role as Col Rufus Plummer in Billy Wilders A Foreign Affair 1948 as Gregory Pecks commanding officer in the war drama Twelve OClock High 1949 and as movie mogul R F Simpson in the musical comedy Singin in the Rain 1952 Mitchell died at the age of fifty from lung cancer in Santa Monica California and was interred in the Holy Cross Cemetery in Culver City California Description above from the Wikipedia article Millard Mitchell licensed under CCBYSA full list of contributors on Wikipedia