Otto Hartmann was an Austrian actor and Gestapo informer.
Der weiße Traum (1943)
Burg Theatre (1936)
Singende Jugend (1936)
Suburban Cabaret (1935)
Madame Bluebeard (1931)
Stormy Night (1931)
The Case of Colonel Redl (1931)
The Vagrant (1930)
Die Jugend am Scheideweg (1929)
Vater Radetzky (1929)
Bright Eyes (1929)