Filmography

• 1968To Die in Paris — General Ludmer
• 1967The Spy in the Green Hat — Dr. Heinrich von Kronen
• 1966Too Many Thieves — Bulanerti
• 1966Torn Curtain — Gustav Lindt
• Branded
• The Fugitive — Dr. Josef Karac
• Ben Casey
• Cain's Hundred — Hans Saltzman
• 1960The Dybbuk — Rabbi Azrael
• 1959Judgment at Nuremberg — Dr. Wickert
• The Twilight Zone — Ernst Ganz
• Naked City — Owner of Pawnshop, Stefan, Doc Randall Benton
• Decoy — Fred, 'Knish' Levin
• Playhouse 90 — Dr. Wickert
• Matinee Theater
• 1953Sins of Jezebel — Naboth
• 1953The Veils of Bagdad — Kaffar
• 1952My Pal Gus — Karl
• Omnibus
• Hallmark Hall of Fame — Joseph
• 1951Journey Into Light — 'Doc' Thorssen
• 1951Sirocco — Flophouse Proprietor
• 1951The Great Caruso — Alfredo Brazzi
• 1950Mystery Submarine — Adolph Guernitz
• 1950The Killer That Stalked New York — Dr. Cooper
• 1949Jolson Sings Again — Cantor Yoelson
• 1949The Fighting O'Flynn — Hendrigg
• 1949The Great Sinner — Doctor
• 1949The Lovable Cheat — Violette
• 1949There's a Girl in My Heart — Professor Joseph Kroner
• 1948Sealed Verdict — Jakob Meyersohn
• Studio One
• 1948To the Ends of the Earth — Nicholas Sokim
• 1947Cigarette Girl — Otto
• 1946Blondie Knows Best — Dr. Titus
• 1946Gilda — German Cartel Member
• 1946Renegades — Jackorski
• 1946The Devil's Mask — Dr. Karger
• 1946The Jolson Story — Cantor Yoelson
• 1946The Return of Monte Cristo — Judge Lafitte
• 1945Counter-Attack — Mueller
• 1945Prison Ship — Professor
• 1944The Hitler Gang — Gustav von Kahr
• 1944The Master Race — Schmidt (as Louis Donath)
• 1943Above Suspicion — Gestapo Officer in Schultz's Laboratory (Uncredited)
• 1943Hangmen Also Die! — Schirmer
• 1943Margin for Error — Hitler's Voice
• 1943The Strange Death of Adolf Hitler — Adolf Hitler / Franz Huber
• 1943This Land Is Mine — German Captain
• 1942Lady from Chungking — Hans Gruber
• 1942Reunion in France — Desk Clerk in Hotel (uncredited)
• 1942The Secret Code — Nazi Prof. Metzger
• 1932Girls to Marry
• 1921Theodor Herzl, Standard-Bearer of the Jewish People — Prinz Eugen

Appearances as themselves (1)

• The Merv Griffin Show — Self