 | James Stewart als Capt. Frank Towns |
 | Richard Attenborough als Lew Moran |
 | Peter Finch als Capt. Harris |
 | Hardy Krüger als Heinrich Dorfmann |
 | Ernest Borgnine als Trucker Cobb |
 | Ian Bannen als Crow |
 | Ronald Fraser als Sergeant Watson |
 | Christian Marquand als Dr. Renaud |
 | Dan Duryea als Standish |
 | George Kennedy als Bellamy |
 | Gabriele Tinti als Gabriel |
 | Alex Montoya als Carlos |
| Peter Bravos als Tasso |
| William Aldrich als Bill |
 | Barrie Chase als Farida |
| Stanley Ralph Ross als Arab Singer (voice) (uncredited) |
| Joseph F. Biroc | Director of Photography |
| Trevor Dudley-Smith | Novel |
| Frank De Vol | Original Music Composer |
| Michael Luciano | Editor |
| Robert Aldrich | Director |
| Lukas Heller | Screenplay |
| Robert Aldrich | Producer |
| John Orlando | Property Master |
| William Glasgow | Art Direction |
| Lucien Hafley | Set Decoration |
| Norma Koch | Costume Design |
| Edwin Butterworth | Makeup Artist |
| Ben Nye | Makeup Supervisor |
| Terry Miles | Makeup Artist |
| Jack Stone | Makeup Artist |
| William Turner | Makeup Artist |
| Frank Westmore | Makeup Artist |
| Dee Manges | Makeup Artist |
| Alan Callow | Assistant Director |
| Clifford C. Coleman | Assistant Director |
| Oscar Rudolph | Second Unit Director |
| William F. Sheehan | Assistant Director |
| Johnny Borgese | Special Effects |
| L.B. Abbott | Visual Effects |
| Howard Lydecker | Visual Effects |
| Paul Mantz | Stunts |
| Ted Mapes | Stunts |
| Bob Rose | Stunts |
| Red Crawford | First Assistant Camera |
| Arthur Gerstle | Assistant Camera |
| Ronald Vidor | Assistant Camera |
