A balding former stage actor from Oregon, Irving Mitchell appeared in scores of films of the 1940s, often playing medical doctors, as in Citizen Kane (1941) and All-American Co-Ed (1941). Mitchell was also one of the suspects in the theft of Napoleon's jewels in Secrets of the Lone Wolf (1941) and one of the two duplicitous industrialists forced by Bela Lugosi to shoot and kill each other in Black Dragons (1942). Very busy in television shows such as Perry Mason and Maverick, Mitchell's last credited feature film was 1957's Jeanne Eagles, in which he played a lawyer.