Joined Max Reinhardt's theater company in Berlin after WWI and appeared in numerous silent films from 1921. Dieterle began directing two years later, starring in many of his own features, including his first, 1923's "Der Mensch am Wege". (His costar--in her debut leading role--was Marlene Dietrich.)
Dieterle moved to Hollywood in 1930, working for Warner Bros. for a decade and starting out… See Full William Dieterle Biography