Directed by
| Romolo Marcellini | ||
Writing Credits (in alphabetical order)
| Gino De Santis | ||
| Duncan Elliott | ||
| Frank Gervasi | ||
| Ugo Guerra | ||
| Romolo Marcellini | ||
Cast (in credits order)
| Dawn Addams | ... | Sofia | |
| Paul Hubschmid | ... | von Brunner (as Paul Christian) | |
| Isa Miranda | ... | Mrs. Fischer | |
| Bruce Cabot | ... | Welles | |
| Andrea Checchi | ... | Krikorian | |
| Wolfgang Lukschy | ... | Petersen | |
| Fanfulla | ... | Muezir (as Luigi Visconti) | |
| John Stacy | |||
 |
Vittorio Massimo | ... | Krikorian |
|
|
Cristina Pall | ||
| Tahiyyah Karyuka | ... | (as Tahia Carioca) | |
Produced by
| Hans Hass | ... | co-producer |
| Luigi Rovere | ... | producer |
Music by
| Carlo Rustichelli | ||
Cinematography by
| Raimondo Bucher | ||
| Renato Del Frate | ||
| Angelo Lotti | ||
Editing by
| Lionello Massobrio | ||
Production Management
| Eliseo Boschi | ... | production secretary |
Art Department
| Italo Tomassi | ... | manager of art department (uncredited) |
Camera and Electrical Department
| Hans Hass | ... | underwater camera |
Additional Crew
| Hans Hass | ... | underwater advisor |
