Fotoğrafları
1968
To Die in Paris
General Ludmer
1967
The Spy in the Green Hat
Dr. Heinrich von Kronen
1966
Too Many Thieves
Bulanerti
1966
Esrar Perdesi
Gustav Lindt
1960
The Dybbuk
Rabbi Azrael
1959
Judgment at Nuremberg
Dr. Wickert
1953
The Veils of Bagdad
Kaffar
1953
Sins of Jezebel
Naboth
1952
My Pal Gus
Karl
1951
Journey Into Light
'Doc' Thorssen
1951
Sirocco
Flophouse Proprietor
1951
The Great Caruso
Alfredo Brazzi
1950
Mystery Submarine
Dr. Adolph Guernitz
1950
The Killer That Stalked New York
Dr. Cooper
1949
There's a Girl in My Heart
Professor Joseph Kroner
1949
Jolson Sings Again
Cantor Yoelson
1949
The Great Sinner
Doctor
1949
The Lovable Cheat
Violette
1949
The Fighting O'Flynn
Hendrigg
1948
Sealed Verdict
Jakob Meyersohn
1948
To the Ends of the Earth
Nicholas Sokim
1947
Cigarette Girl
Otto
1946
Blondie Knows Best
Dr. Titus
1946
The Jolson Story
Cantor Yoelson
1946
Renegades
Jackorski
1946
The Devil's Mask
Dr. Karger
1946
Şeytanın Kızı Gilda
German Cartel Member
1945
Prison Ship
Professor
1945
Counter-Attack
Mueller
1944
The Master Race
Schmidt (as Louis Donath)
1943
The Strange Death of Adolf Hitler
Adolf Hitler / Franz Huber
1943
Above Suspicion
Gestapo Officer in Schultz's Laboratory (Uncredited)
1943
This Land Is Mine
German Captain
1943
Hangmen Also Die!
Schirmer
1943
Margin for Error
Hitler's Voice
1942
Reunion in France
Desk Clerk in Hotel (uncredited)
1942
Lady from Chungking
Hans Gruber
1942
The Secret Code
Nazi Prof. Metzger
1932
Mädchen zum Heiraten
1921
Theodor Herzl, der Bannerträger des jüdischen Volkes
Prinz Eugen
1970
He's Alive
Ernst Ganz