Directed by
| Melchiade Coletti | ||
| Gigi Oliviero | ... | (underwater scenes) |
Writing Credits
| Melchiade Coletti | ... | (story) & |
| Arnaldo Francolini | ... | (story) |
| Melchiade Coletti | ... | (screenplay) |
Cast (in credits order)
| Frederick Stafford | ... | Giulio Valdesio | |
| Dagmar Lassander | ... | Paola Valdesio | |
 |
Enzo Maiorca | ... | Enzo (as Enzo Majorca) |
| Chris Avram | ... | Dr. Murray | |
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Massimo Corsetti | ... | Massimo Valdesio |
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Mariana Camara | ... | Miss Price (as Mariama Camara) |
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Stelio Candelli | ... | Joe |
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Franco De Rosa | ... | Captain Soleri |
| Alberto Farnese | ... | Company Vice President | |
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Roby Zucchi | ... | Kidnapper |
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Sacha | ... | Sacha (as il cane-attore Sacha) |
| Howard Ross | ... | Mario | |
| Rest of cast listed alphabetically: | |||
| Luciano Pigozzi | ... | Kidnapper (uncredited) | |
Produced by
| Gianfranco Bernabei | ... | executive producer |
Music by
| Luigi Romanelli | ||
Cinematography by
| Aldo Greci | ||
Editing by
| Tatiana Casini Morigi | ... | (as Tatjana Casini) |
| Germana Lanni | ||
Art Direction by
| Massimo Bolongaro | ||
Costume Design by
| Massimo Bolongaro | ||
Makeup Department
| Bianca Casella | ... | makeup artist |
Production Management
| Massimo Alberini | ... | production manager |
| Giulio Dini | ... | production secretary |
| Egidio Valentini | ... | production supervisor |
Second Unit Director or Assistant Director
| Ivo Barouch | ... | assistant director (as Yves Barouch) |
Sound Department
| Luciano Anzellotti | ... | sound |
| Gianni D'Amico | ... | sound mixer |
Camera and Electrical Department
| Domenico Caiuli | ... | chief electrician |
| Carlo Cerchio | ... | camera operator (as Carlo Alberto Cerchio) |
| Maurizio Dell'Orco | ... | assistant camera |
| Ubaldo Di Curzio | ... | key grip |
| Giancarlo Filoni | ... | still photographer |
| Giancarlo Formichi | ... | camera operator: underwater scenes (as Giancarlo Formichi-Moglia) |
Costume and Wardrobe Department
| Anna Onori | ... | seamstress |
Music Department
| Alexander Blonksteiner | ... | conductor (as Sandro Blonksteiner) |
| Roberto Pregadio | ... | conductor |
Additional Crew
| Stelio Candelli | ... | master of arms |
| Ted Rusoff | ... | voice dubbing: Frederick Stafford (uncredited) |
