 | Joseph Cotten als Holly Martins |
 | Alida Valli als Anna Schmidt |
 | Trevor Howard als Major Calloway |
 | Orson Welles als Harry Lime |
 | Paul Hörbiger als Karl the Porter |
 | Ernst Deutsch als 'Baron' Kurtz |
 | Erich Ponto als Dr. Winkel |
 | Siegfried Breuer als Popescu |
 | Hedwig Bleibtreu als Anna's Landlady |
 | Bernard Lee als Sergeant Paine |
 | Wilfrid Hyde-White als Crabbin |
 | Alexis Chesnakov als Col. Brodsky the Russian Liaison Officer (uncredited) |
| Thomas Gallagher als Taxi Driver (uncredited) |
| Herbert Halbik als Hänsel the Little Boy with Ball (uncredited) |
| Hannah Norbert als Actress at Josefstadt Theater (uncredited) |
 | Eric Pohlmann als Waiter at Smolka's (uncredited) |
 | Carol Reed als UK Version's Opening Narrator (uncredited) |
 | Annie Rosar als The Porter's Wife (uncredited) |
| Frederick Schrecker als Hansel's Father (uncredited) |
| Hugo Schuster als Waiter (uncredited) |
 | Karl Stepanek als Actor at Josefstadt Theater (uncredited) |
 | Theodore Gottlieb als Man on Street (uncredited) |
| Jenny Werner als Dr. Winkel's Maid Hilde (uncredited) |
| Reed De Rouen als American Military Policeman(uncredited) |
 | Geoffrey Keen als British Military Policeman (uncredited) |
 | Robert Brown als Britush Military Policeman in Sewer Chase (uncredited) |
| Carol Reed | Director |
| Graham Greene | Screenplay |
| Carol Reed | Producer |
| Anton Karas | Original Music Composer |
| Robert Krasker | Director of Photography |
| Oswald Hafenrichter | Editor |
| John Wilcox | Additional Photography |
| David O. Selznick | Producer |
| Alexander Korda | Producer |
| Hugh Perceval | Associate Producer |
| George Frost | Makeup Artist |
| T.S. Lyndon-Haynes | Production Manager |
| Jack Drake | Sound Editor |
| Red Law | Sound Recordist |
| Bert Ross | Sound Recordist |
| Ivy Baker | Wardrobe Supervisor |
| Vincent Korda | Set Designer |
| Noreen Best | Editorial Staff |
| Jack N. Green | Third Assistant Director |
| Peggy McClafferty | Continuity |
| John Hawkesworth | Assistant Set Designer |
| Joseph Bato | Assistant Set Designer |
| Anton Karas | Musician |
| Guy Hamilton | Assistant Director |
| Edward Scaife | Camera Operator |
| Denys N. Coop | Camera Operator |
| Stanley Pavey | Additional Photography |
| Ferdinand Bellan | Assistant Art Director |
| James Sawyer | Assistant Art Director |
| Elizabeth Montagu | Technical Advisor |
| John Cox | Sound Supervisor |
| Peter Taylor | Assistant Editor |
| Joe Shear | Hairdresser |
