Directed by
| Giovanni Roccardi | ||
Writing Credits (in alphabetical order)
| Ferdinando Contestabile | ... | (dialogue) |
| Alessandro De Stefani | ... | (screenplay) |
| Alessandro De Stefani | ... | (story) |
| Giovanni Roccardi | ... | (screenplay) |
| Giuliano Tomei | ... | (screenplay) |
Cast (in credits order)
| Sophia Loren | ... | Barbara Lama | |
| Steve Barclay | ... | Paolo (as Stephen Barclay) | |
| Umberto Melnati | ... | Sebastiano Lama | |
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Alessandro Fersen | ... | Prof. Krauss |
| Antonio Cifariello | ... | Pierluigi (as Fabio Montale) | |
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Antonio Bardi | ... | Franco |
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Masino Manunza | ... | Masino |
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Osman Omar | ... | Ali |
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Ibrahim Ahmed | ... | Hussein |
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Ahmed Ben Yusuf | ... | Kassin |
| Rest of cast listed alphabetically: | |||
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Gualtiero De Angelis | ... | Narratore (uncredited) |
Produced by
| Goffredo Lombardo | ... | producer |
Music by
| Angelo Francesco Lavagnino | ||
Cinematography by
| Angelo Jannarelli | ||
Editing by
| Mario Serandrei | ||
Art Direction by
| Ottavio Scotti | ||
Set Decoration by
| Luigi Gervasi | ||
Makeup Department
| Gaspare Carboni | ... | makeup artist |
Production Management
| Alfredo Baldoni | ... | production manager |
| Corrado Gallinari | ... | general production manager |
Second Unit Director or Assistant Director
| Nanni Loy | ... | assistant director (as Giovanni Loy) |
Sound Department
| Primiano Muratori | ... | boom operator |
| Giulio Tagliacozzo | ... | sound engineer |
Camera and Electrical Department
| Gerd Beysert | ... | camera operator: scientific sequences |
| Mario Cimini | ... | camera operator |
| Masino Manunza | ... | assistant camera: underwater cinematography |
| Giovanni Roccardi | ... | underwater camera operator |
| Giovanni Varriano | ... | camera operator |
Script and Continuity Department
| Vana Caruso | ... | script supervisor |
Additional Crew
| Ulrich K.T. Schultz | ... | director: scientific sequences (as K.T. Schultz) |
| Pietro Trancioni | ... | production secretary |
| Gualtiero De Angelis | ... | italian voice dubbing: Steve Barclay (uncredited) |
| Renata Marini | ... | italian voice dubbing: Sophia Loren (uncredited) |
| Bruno Persa | ... | italian voice dubbing: Alessandro Fersen (uncredited) |
| Amilcare Pettinelli | ... | italian voice dubbing: Umberto Melnati (uncredited) |
| Giuseppe Rinaldi | ... | italian voice dubbing: Antonio Bardi (uncredited) |