Joseph Cotten as Holly Martins

Alida Valli as Anna Schmidt

Trevor Howard as Major Calloway

Orson Welles as Harry Lime

Paul Hörbiger as Karl the Porter

Ernst Deutsch as 'Baron' Kurtz

Erich Ponto as Dr. Winkel

Siegfried Breuer as Popescu

Hedwig Bleibtreu as Anna's Landlady

Bernard Lee as Sergeant Paine

Wilfrid Hyde-White as Crabbin

Alexis Chesnakov as Col. Brodsky the Russian Liaison Officer (uncredited)

Thomas Gallagher as Taxi Driver (uncredited)

Herbert Halbik as Hänsel the Little Boy with Ball (uncredited)

Hannah Norbert as Actress at Josefstadt Theater (uncredited)

Eric Pohlmann as Waiter at Smolka's (uncredited)

Carol Reed as UK Version's Opening Narrator (uncredited)

Annie Rosar as The Porter's Wife (uncredited)

Frederick Schrecker as Hansel's Father (uncredited)

Hugo Schuster as Waiter (uncredited)

Karl Stepanek as Actor at Josefstadt Theater (uncredited)

Theodore Gottlieb as Man on Street (uncredited)

Jenny Werner as Dr. Winkel's Maid Hilde (uncredited)

Reed De Rouen as American Military Policeman(uncredited)

Geoffrey Keen as British Military Policeman (uncredited)

Robert Brown as Britush Military Policeman in Sewer Chase (uncredited)