Directed by
| Aldo Florio | ||
Writing Credits (in alphabetical order)
| Arpad DeRiso | ... | (screenplay) |
| Arpad DeRiso | ... | (story) |
| Aldo Florio | ||
| Roberto Gianviti | ... | (screenplay) |
| Roberto Gianviti | ... | (story) |
| Pedro Gil Paradela | ||
Cast (in credits order)
| Richard Harrison | ... | Steve Norton | |
| Alida Chelli | ... | Ulla Helger | |
| Luis Dávila | ... | Gustav | |
| Diana Lorys | ... | Huguette | |
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Franco De Rosa | ... | Capitano Darvi |
| Rosalba Neri | ... | Margot | |
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Roberto Spiombi | ... | Dupuis |
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Alberto Plebani | ... | Van der Hoven |
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Audrey McDonald | ... | Mrs. Van der Hoven |
| José Marco | ... | Larry Brooks | |
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Enrico Canestrini | ... | Edward Dwight |
| Tullio Altamura | |||
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Aldo Bonamano | ||
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Ángel Menéndez | ... | Yacht Captain |
| Goffredo Unger | ... | Kurt (as Freddy Unger) | |
| Ferruccio Viotti | ... | Lester Barrow | |
| Attilio Dottesio | ... | Magg. Hernández | |
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Héctor Quiroga | ||
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Giovanni Brusadori | ||
| Rest of cast listed alphabetically: | |||
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Angelo Casadei | ... | Spanish Policeman (uncredited) |
Cinematography by
| Federico G. Larraya | ||
Editing by
| Renato Cinquini | ||
Production Design by
| Saverio D'Eugenio | ||
Set Decoration by
| Riccardo Domenici | ... | (as Riccardo Dominici) |
Costume Design by
| Riccardo Domenici | ... | (as Riccardo Dominici}) |
Makeup Department
| Sergio Angeloni | ... | makeup artist |
Production Management
| Luciano Cattania | ... | production manager |
| Giuseppe Francone | ... | production supervisor |
| Carlo Murzilli | ... | production supervisor |
| José Luis Rubio | ... | production supervisor |
| José Sánchez | ... | production supervisor |
| Andrés Velasco | ... | production manager |
Second Unit Director or Assistant Director
| Roberto Giandalia | ... | assistant director |
| Fernando Montes | ... | assistant director |
Sound Department
| Armando Timpani | ... | sound engineer |
| Bruno Zanoli | ... | boom operator |
Special Effects by
| Ditta Mares | ... | subaquatic special effects |
Stunts
| Giovanni Bonadonna | ... | stunts (uncredited) |
Camera and Electrical Department
| Miguel Barquero | ... | camera operator (as Miguel Barquero Velez) |
| Victor De Santis | ... | underwater camera operator |
| Giancarlo Gasparri | ... | underwater camera operator |
| Julio Leyva | ... | assistant camera (as Julio Leiva) |
Costume and Wardrobe Department
| Angelo Litrico | ... | costumes: Richard Harrison |
Editorial Department
| Giancarlo Venarucci | ... | assistant editor (as Giancarlo Cadueri) |
Music Department
| Giuseppe Cassia | ... | composer: song "Diamonds, Diamonds" |
| Robby Poitevin | ... | composer: song "Diamonds, Diamonds" / conductor |
Script and Continuity Department
| Carla Fierro | ... | script supervisor |
| Bruna Malaguti | ... | script supervisor |
Additional Crew
| Carlo Alighiero | ... | voice dubbing (uncredited) |
| Gino Baghetti | ... | voice dubbing: Alberto Plebani (uncredited) |
| Cesare Barbetti | ... | voice dubbing: Franco De Rosa (uncredited) |
| Maria Pia Di Meo | ... | voice dubbing: Rosalba Neri (uncredited) |
| Arturo Dominici | ... | voice dubbing: Attilio Dottesio (uncredited) |
| Vittoria Febbi | ... | voice dubbing: Alida Chelli (uncredited) |
| Massimo Foschi | ... | voice dubbing: Enrico Canestrini (uncredited) |
| Pino Locchi | ... | voice dubbing: Richard Harrison (uncredited) |
| Romano Malaspina | ... | voice dubbing (uncredited) |
| Riccardo Mantoni | ... | voice dubbing: Ferruccio Viotti (uncredited) |
| Melina Martello | ... | voice dubbing: Diana Lorys (uncredited) |
| Glauco Onorato | ... | voice dubbing: Goffredo Unger (uncredited) |
| Bruno Persa | ... | voice dubbing (uncredited) |
| Giuseppe Rinaldi | ... | voice dubbing: Luis Dàvila (uncredited) |
| Lydia Simoneschi | ... | voice dubbing: Audrey McDonald (uncredited) |
| Sergio Tedesco | ... | voice dubbing: Roberto Spiombi (uncredited) |
