(1962) Jules and Jim

as Jules

(1963) Venusberg

as Der Mann (Stimme)

(1951) Decision Before Dawn

as Cpl. Karl Maurer - aka Happy

(1965) Ship of Fools

as Dr. Schumann

(1965) The Spy Who Came In from the Cold

as Fiedler

(1955) Lola Montès

as Student

(1968) The Shoes of the Fisherman

as Fr. David Telemond

(1976) Voyage of the Damned

as Professor Egon Kreisler

(1955) The Last Act

as Hauptmann Wüst

(1968) Interlude

as Stefan Zelter

(1950) The Angel with the Trumpet

as Herman Alt

(1948) The Angel with the Trumpet

as Hermann Alt

(1939) Hotel Sacher

as Liftboy

(1949) Eroica

as Karl, Beethovens Neffe

(1955) Mozart

as Wolfgang Amadeus Mozart

(1951) Call Over the Air

as Student

(1951) The Wonder Kid

as Rudi

(1951) Das gestohlene Jahr

as Peter Brück

(1958) Ein gewisser Judas

as Judas

(1957) Bacchus

as Bacchus

(1955) Espionage

as Leutnant Zeno von Baumgarten

(1938) Geld fällt vom Himmel

as ---

(1951) Ein Lächeln im Sturm

as Francois Mercier

(1966) Fahrenheit 451

as Guy Montag

(1974) The Odessa File

as Wehrmacht Officer (uncredited)

(1971) Columbo

as Harold van Wyck

(1957) Landesschau Baden-Württemberg

as self