Orson Welles
Harry Lime
Joseph Cotten
Holly Martins
Bernard Lee
Sergeant Paine
Geoffrey Keen
British Military Policeman (uncredited)
Robert Brown
Britush Military Policeman in Sewer Chase (uncredited)
Annie Rosar
The Porter's Wife (uncredited)
Trevor Howard
Major Calloway
Erich Ponto
Dr. Winkel
Paul Hörbiger
Karl the Porter
Carol Reed
UK Version's Opening Narrator (uncredited)
Alida Valli
Anna Schmidt
Siegfried Breuer
Popescu
Wilfrid Hyde-White
Crabbin
Hedwig Bleibtreu
Anna's Landlady
Theodore Gottlieb
Man on Street (uncredited)
Eric Pohlmann
Waiter at Smolka's (uncredited)
Ernst Deutsch
'Baron' Kurtz
Karl Stepanek
Actor at Josefstadt Theater (uncredited)