Otto Hartmann was an Austrian actor and Gestapo informer.
The Vagrant
1930
Suburban Cabaret
1935
Bright Eyes
1929
Madame Bluebeard
1931
Stormy Night
A Devil of a Fellow
Der weiße Traum
1943
The Case of Colonel Redl
Burg Theatre
1936
Singende Jugend
Vater Radetzky
Three on a Honeymoon
1939
