 | Eleonora Rossi Drago als Marion |
 | Pierre Cressoy als Silvano |
 | Carlo Bellini |
 | Tino Carraro als Commander |
| Giovanni De Fazio |
| Charles Fawcett |
 | Riccardo Garrone |
 | Paul Müller als Foreign agent |
| Rio Nobile |
| Colombo Pamolli |
 | Paolo Panelli |
 | Mimmo Poli |
| Giorgio Spaccarelli |
| Giovanni Tadini |
| Tsao Hong Tche |
 | Mario Ferrari als (Voice dubbing for Pierre Cressoy) |
| Adriana de Roberto als (Voice dubbing for Eleonora Rossi Drago) |
| Duilio Coletti | Director |
| Giuseppe Berto | Writer |
| Marc-Antonio Bragadin | Writer |
| Duilio Coletti | Writer |
| Enzo Cossa | Writer |
| Ennio De Concini | Writer |
| Francesco De Robertis | Writer |
| Enzo Cossa | Producer |
| Luigi De Laurentiis | Producer |
| Nino Rota | Original Music Composer |
| Aldo Tonti | Director of Photography |
| Gisa Radicchi Levi | Editor |
| Mario Rappini | Production Design |
| Mario Rappini | Costume Design |
| David Carbonari | Assistant Director |
| Gian Giacomo Cossa | Assistant Director |
| Aldo Calpini | Sound |
| Paolo Uccello | Sound |
| Victor De Sanctis | Underwater Camera |
| Francesco Solitario | Key Grip |
| Aldo Tonti | Underwater Camera |
| Giovannella Zannoni | Script Supervisor |
