 | Louis Jourdan als Charles Beaulieu |
 | Senta Berger als Gertraud Sphax |
 | Edmond O'Brien als Sphax (publisher) |
 | Maurice Garrel als Henri Banck |
 | Bernard Blier als Le commandant Rhome |
 | Fabrizio Capucci als Cecil Barnette |
 | Gerhard Bormann als (as Gerhard Borman) |
 | Peter Martin Urtel |
 | Jean Rupert |
 | Giuseppe Addobbati als Moranez |
 | Gamil Ratib als Belloum |
| Nello Meniconi | Co-Producer |
| Édouard Molinaro | Director |
| Édouard Molinaro | Screenplay |
| Jacques Robert | Novel |
| Alain Poiré | Producer |
| Luciano Perugia | Co-Producer |
| Raymond Lemoigne | Director of Photography |
| José Berghmans | Original Music Composer |
| Jean Le Duc | Co-Producer |
| Robert Isnardon | Editor |
| Robert Clavel | Art Direction |
| Olivier Girard | Art Direction |
| Jacques Martin | Costume Design |
| Louis Bonnemaison | Makeup Artist |
| Irénée Leriche | Production Manager |
| Armand Tabuteau | Unit Production Manager |
| Philippe Monnier | Assistant Director |
| Klaus Müller-Laue | Assistant Director |
| Jean Labussière | Sound |
| Jean Benezech | Camera Operator |
| Jean Baudoin | Still Photographer |
