 | Rossana Podestà als Mary Hunter |
 | Georges Rivière als Max Hunter |
 | Christopher Lee als Erich |
 | Laura Nucci als Martha |
 | Jim Dolen als John Selby |
| Leonardo Severini als The Doctor |
| Luciana Milone als Trude |
| Anny Degli Uberti als Kidnapped Woman |
| Mirko Valentin als The General |
 | Lucile Saint-Simon als Hilde |
| Patrick Walton |
| Carole Windsor |
| Rex Vidor |
| James Borden |
| Peter Hardy |
| Bredon Brett |
| Robert Mayor |
| Antonio Margheriti | Director |
| Frank Bogart | Novel |
| Ernesto Gastaldi | Screenplay |
| Antonio Margheriti | Screenplay |
| Edmond T. Gréville | Screenplay |
| Bertrand Blier | Assistant Director |
| Marco Vicario | Producer |
| Riz Ortolani | Original Music Composer |
| Riccardo Pallottini | Director of Photography |
| Otello Colangeli | Editor |
| Riccardo Domenici | Art Direction |
| Riccardo Domenici | Costume Design |
| Anna Cristofani | Hairstylist |
| Franco Di Girolamo | Makeup Artist |
