 The Gentleman in Room 61951 · Guest | Guest |
 Resisting Enemy Interrogation1944 · Herr Mahler - German Red Cross Representative | Herr Mahler - German Red Cross Representative |
 Passage to Marseille1944 · Actor | Actor |
 First Comes Courage1943 · Nazi Captain (uncredited) | Nazi Captain (uncredited) |
 Background to Danger1943 · German Officer (uncredited) | German Officer (uncredited) |
 Hitler's Madman1943 · Actor | Actor |
 Edge of Darkness1943 · German Co-Pilot (uncredited) | German Co-Pilot (uncredited) |
 Hangmen Also Die!1943 · Reinhard Heydrich | Reinhard Heydrich |
 Margin for Error1943 · Fritz - Butler | Fritz - Butler |
 Casablanca1943 · German Officer with Yvonne (uncredited) | German Officer with Yvonne (uncredited) |
 Once Upon a Honeymoon1942 · German Officer (uncredited) | German Officer (uncredited) |
 Desperate Journey1942 · Actor | Actor |
 The Dawn Express1942 · Capt. Gemmler | Capt. Gemmler |
 Hitler: Beast of Berlin1939 · Albert Stalhelm - Storm Trooper | Albert Stalhelm - Storm Trooper |
 Espionage Agent1939 · Dr. Helm | Dr. Helm |
 Confessions of a Nazi Spy1939 · Helldorf | Helldorf |
 The Crusades1935 · Nicholas, Count of Hungary | Nicholas, Count of Hungary |
 Storm Over the Andes1935 · Oberto (as Hans Von Twardowski) | Oberto (as Hans Von Twardowski) |
 The Scarlet Empress1934 · Actor | Actor |
 The Devil's in Love1933 · Andre's Defense Counsel | Andre's Defense Counsel |
 Adorable1933 · Prince of Pontevedro | Prince of Pontevedro |
 Private Jones1933 · Von Bergen (uncredited) | Von Bergen (uncredited) |
 6 Hours to Live1932 · Flosky | Flosky |
 Scandal for Sale1932 · Affner, the pilot | Affner, the pilot |
 The Holy Flames1931 · Robert Taylor | Robert Taylor |
 The Singing City1930 · Willi von Wellheim - Claires Verehrer | Willi von Wellheim - Claires Verehrer |
 Ludwig II, King of Bavaria1930 · Otto von Wittelsbach (as H.H. von Twardowsky) | Otto von Wittelsbach (as H.H. von Twardowsky) |
| PPeter, der Matrose1929 · Actor | Actor |
 I Kiss Your Hand, Madame1929 · Waiter | Waiter |
 Sex in Chains1928 · Alfred | Alfred |
| DDie Hölle der Jungfrauen1928 · Actor | Actor |
| DDer falsche Prinz1927 · Wolf, sein Freund | Wolf, sein Freund |
 The Weavers1927 · Gottfried Hilse | Gottfried Hilse |
 The Enchantress1924 · Actor | Actor |
 I.N.R.I. – A Film of Humanity1923 · Johannes | Johannes |
 Phantom1922 · Hugo Lubota | Hugo Lubota |
 Marizza1922 · Actor | Actor |
 The Rats1921 · Erich Spitta | Erich Spitta |
 The House on the Moon1921 · Actor | Actor |
| TThe Night of Queen Isabeau1920 · Page | Page |
 Genuine: The Tragedy of a Vampire1920 · Florian | Florian |
 The Cabinet of Dr. Caligari1920 · Alan | Alan |
 From Morning to Midnight1920 · Sohn der Dame | Sohn der Dame |
 Eerie Tales1919 · Restaurant Waiter | Restaurant Waiter |
