1975
Film Emigration from Nazi Germany as Self (archive footage)1951
The Gentleman in Room 6 as Guest1944
Resisting Enemy Interrogation as Herr Mahler - German Red Cross Representative1944
Passage to Marseille as Not available1943
Casablanca as German Officer with Yvonne (uncredited)1943
Edge of Darkness as German Co-Pilot (uncredited)1943
Hangmen Also Die! as Reinhard Heydrich1943
Background to Danger as German Officer1943
Hitler's Madman as Not available1943
Margin for Error as Fritz - Butler1943
First Comes Courage as Nazi Captain (uncredited)1942
The Dawn Express as Capt. Gemmler1942
Once Upon a Honeymoon as German Officer (uncredited)1939
Confessions of a Nazi Spy as Helldorf1939
Hitler: Beast of Berlin as Albert Stalhelm - Storm Trooper1939
Espionage Agent as Dr. Helm1935
The Crusades as Nicholas, Count of Hungary1935
Storm Over the Andes as Oberto (as Hans Von Twardowski)1934
The Scarlet Empress as Not available1933
Adorable as Prince of Pontevedro1933
The Devil's in Love as Andre's Defense Counsel1933
Private Jones as Von Bergen (uncredited)1932
Scandal for Sale as Affner, the pilot1932
6 Hours to Live as Flosky1931
The Holy Flames as Robert Taylor1930
Ludwig II, King of Bavaria as Otto von Wittelsbach (as H.H. von Twardowsky)1930
The Singing City as Willi von Wellheim - Claires Verehrer1929
I Kiss Your Hand, Madame as Waiter1929
Peter, der Matrose as Not available1928
Sex in Chains as Alfred1928
Die Hölle der Jungfrauen as Not available1927
The Weavers as Gottfried Hilse1927
Der falsche Prinz as Wolf, sein Freund1924
The Enchantress as Not available1923
I.N.R.I. – A Film of Humanity as Johannes1922
Phantom as Hugo Lubota1922
Marizza as Not available1921
The House on the Moon as Not available1920
The Cabinet of Dr. Caligari as Alan1920
Genuine: The Tragedy of a Vampire as Florian1920
From Morn to Midnight as Sohn der Dame1920
The Night of Queen Isabeau as Page1919
Eerie Tales as Restaurant Waiter