 Joseph CottenHolly Martins | Holly Martins |
 Alida ValliAnna Schmidt | Anna Schmidt |
 Trevor HowardMajor Calloway | Major Calloway |
 Orson WellesHarry Lime | Harry Lime |
 Paul HörbigerKarl the Porter | Karl the Porter |
 Ernst Deutsch'Baron' Kurtz | 'Baron' Kurtz |
 Erich PontoDr. Winkel | Dr. Winkel |
 Siegfried BreuerPopescu | Popescu |
 Hedwig BleibtreuAnna's Landlady | Anna's Landlady |
 Bernard LeeSergeant Paine | Sergeant Paine |
 Wilfrid Hyde-WhiteCrabbin | Crabbin |
| AAlexis ChesnakovCol. Brodsky the Russian Liaison Officer (uncredited) | Col. Brodsky the Russian Liaison Officer (uncredited) |
| TThomas GallagherTaxi Driver (uncredited) | Taxi Driver (uncredited) |
| HHerbert HalbikHänsel the Little Boy with Ball (uncredited) | Hänsel the Little Boy with Ball (uncredited) |
| HHannah NorbertActress at Josefstadt Theater (uncredited) | Actress at Josefstadt Theater (uncredited) |
 Eric PohlmannWaiter at Smolka's (uncredited) | Waiter at Smolka's (uncredited) |
 Carol ReedUK Version's Opening Narrator (uncredited) | UK Version's Opening Narrator (uncredited) |
 Annie RosarThe Porter's Wife (uncredited) | The Porter's Wife (uncredited) |
| FFrederick SchreckerHansel's Father (uncredited) | Hansel's Father (uncredited) |
| HHugo SchusterWaiter (uncredited) | Waiter (uncredited) |
 Karl StepanekActor at Josefstadt Theater (uncredited) | Actor at Josefstadt Theater (uncredited) |
 Theodore GottliebMan on Street (uncredited) | Man on Street (uncredited) |
| JJenny WernerDr. Winkel's Maid Hilde (uncredited) | Dr. Winkel's Maid Hilde (uncredited) |
| RReed De RouenAmerican Military Policeman(uncredited) | American Military Policeman(uncredited) |
 Geoffrey KeenBritish Military Policeman (uncredited) | British Military Policeman (uncredited) |
 Robert BrownBritush Military Policeman in Sewer Chase (uncredited) | Britush Military Policeman in Sewer Chase (uncredited) |
 Paul CarpenterInternational Patrol D (uncredited) | International Patrol D (uncredited) |
