 | Frank Wolff als Dr. Robert Matthews |
 | Nieves Navarro als Nicole Rochard |
 | Simón Andreu als Michel Aumont |
 | Carlo Gentili als Inspector Baxter |
 | George Rigaud als Captain Lenny |
 | José Manuel Martín als Smith |
 | Fabrizio Moresco als Bergson |
 | Luciano Rossi als Hallory |
 | Claudie Lange als Vanessa Matthews |
 | Osvaldo Genazzani als Jack |
 | Manuel Muñiz als Philip |
| Rachela Pamenti als Peggy |
 | Daniela Giordano als Ragazza nel night (uncredited) |
 | Corrado Gaipa als Captain Lenny (voice) (dub: Italian version) (uncredited) |
| Renato Turi als Inspector Baxter (voice) (dub: Italian version) (uncrecited) |
| Luciano Ercoli | Director |
| Ernesto Gastaldi | Story |
| Ernesto Gastaldi | Screenplay |
| Mahnahén Velasco | Screenplay |
| Mahnahén Velasco | Story |
| Dino Verde | Story |
| Stelvio Cipriani | Original Music Composer |
| Luciano Ercoli | Producer |
| Alberto Pugliese | Producer |
| Fernando Arribas | Director of Photography |
| Angelo Curi | Editor |
| Osanna Guardini | Art Direction |
| Juan Alberto Soler | Set Decoration |
| Osanna Guardini | Costume Design |
| Franco Di Girolamo | Makeup Artist |
| Amedeo Casati | Sound |
| Raffaele Benedetti | Sound Recordist |
| Romano Pampaloni | Sound Mixer |
| Antonio Molina | Special Effects |
| Maria Pia Appetito | Assistant Editor |
| Juan Prous | Assistant Camera |
| Alessandro D'Eva | Director of Photography |
| Luigi Oliviero | Assistant Director |
| Mahnahén Velasco | Assistant Director |
| Giuseppe Scalisi | Assistant Art Director |
| María Teresa Font | Production Secretary |
