He came in contact with the film business in 1919 and he took part in several silent movies.
After 1922 he concentrated to the theater again and besides his appearances as an actor he was also a theater director at different theaters in Leipzig, Vienna, Munich und Zurich.
His last cinematical work was "Eli" (1970).
The actor Erhard Siedel joined the theater in 1915 where he made his stage debut in Dresden. Later followed engagements in Berlin.
He remained active in front of the camera after the war.