To Die in Paris
1968 · General Ludmer
The Spy in the Green Hat
1967 · Dr. Heinrich von Kronen
Too Many Thieves
1966 · Bulanerti
Torn Curtain
1966 · Gustav Lindt
Branded
1965
The Fugitive
1963 · Dr. Josef Karac
The Merv Griffin Show
1962 · Self
Ben Casey
1961
Cain's Hundred
1961 · Hans Saltzman
The Dybbuk
1960 · Rabbi Azrael
The Twilight Zone
1959 · Ernst Ganz
Judgment at Nuremberg
1959 · Dr. Wickert
Naked City
1958 · Owner of Pawnshop
Naked City
1958 · Stefan
Naked City
1958 · Doc Randall Benton
Decoy
1957 · Fred
Decoy
1957 · 'Knish' Levin
Playhouse 90
1956 · Dr. Wickert
Matinee Theater
1955
The Veils of Bagdad
1953 · Kaffar
Sins of Jezebel
1953 · Naboth
My Pal Gus
1952 · Karl
Omnibus
1952
Hallmark Hall of Fame
1951 · Joseph
Journey Into Light
1951 · 'Doc' Thorssen
Sirocco
1951 · Flophouse Proprietor
The Great Caruso
1951 · Alfredo Brazzi
Mystery Submarine
1950 · Adolph Guernitz
The Killer That Stalked New York
1950 · Dr. Cooper
There's a Girl in My Heart
1949 · Professor Joseph Kroner
Jolson Sings Again
1949 · Cantor Yoelson
The Great Sinner
1949 · Doctor
The Lovable Cheat
1949 · Violette
The Fighting O'Flynn
1949 · Hendrigg
Studio One
1948
Sealed Verdict
1948 · Jakob Meyersohn
To the Ends of the Earth
1948 · Nicholas Sokim
Cigarette Girl
1947 · Otto
The Return of Monte Cristo
1946 · Judge Lafitte
Blondie Knows Best
1946 · Dr. Titus
The Jolson Story
1946 · Cantor Yoelson
Renegades
1946 · Jackorski
The Devil's Mask
1946 · Dr. Karger
Gilda
1946 · German Cartel Member
Prison Ship
1945 · Professor
Counter-Attack
1945 · Mueller
The Master Race
1944 · Schmidt (as Louis Donath)
The Hitler Gang
1944 · Gustav von Kahr
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