Directed by
| Antonio Margheriti | ... | (as Anthony M. Dawson) |
Writing Credits
| Michael Rogers | ... | (screenplay) |
Cast (in credits order) verified as complete
| Lee Majors | ... | Robert Lasky | |
| Karen Black | ... | Kate Neville | |
| Margaux Hemingway | ... | Gabrielle | |
| Marisa Berenson | ... | Ann Hoyt | |
| James Franciscus | ... | Paul Diller | |
| Roy Brocksmith | ... | Ollie | |
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Dan Pastorini | ... | Hans |
| Frank Pesce | ... | Warren Bailey | |
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Charles Guardino | ... | Lloyd Bailey |
| Anthony Steffen | ... | Max | |
| Fábio Sabag | ... | Quintin | |
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Jorge Cherques | ... | Police Inspector (as George Cherques) |
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Chico Aragão | ... | Ben (as Chico Arago) |
| Gary Collins | ... | Tom | |
| Sônia Oiticica | ... | Nurse (as Sonia Oiticica) | |
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Celso Faria | ... | Passenger |
Produced by
| Enzo Barone | ... | executive producer |
| Farrah Fawcett | ... | executive producer (uncredited) |
| Lew Grade | ... | executive producer (uncredited) |
| Lee Majors | ... | executive producer (uncredited) |
| Olivier Perroy | ... | executive producer |
| Alex Ponti | ... | producer |
| Carlo Ponti | ... | executive producer (uncredited) |
| Turi Vasile | ... | executive producer |
Music by
| Guido De Angelis | ||
| Maurizio De Angelis | ||
Cinematography by
| Alberto Spagnoli | ... | director of photography |
Editing by
| Roberto Sterbini | ||
Art Direction by
| Francesco Bronzi | ||
Costume Design by
| Adriana Berselli | ||
| Salvatore Russo | ||
Makeup Department
| Stephen Abrums | ... | makeup artist: Lee Majors (as Steve Abraums) |
| Mirella Ginnoto | ... | hair stylist |
| Carol Meikle | ... | hair stylist: Karen Black |
| Giovanni Morosi | ... | makeup artist (as Gianni Morosi) |
| Mario Scutti | ... | assistant makeup artist |
Production Management
| Alfredo Mirabile | ... | production manager |
| Paulo Parente | ... | production manager |
| Aldo Santarelli | ... | unit manager |
| Regina Helena Texeira | ... | unit manager |
Second Unit Director or Assistant Director
| Ignazio Dolce | ... | second unit director |
| Joe Pollini | ... | assistant director (as Giuseppe Pollini) |
| Michel Salliouti | ... | assistant director |
Art Department
| Alvaro Belsole | ... | construction manager |
| Luciano D'Achille | ... | prop man |
| Nello Giorgetti | ... | set dresser |
| Jose Antonio Pupe | ... | construction manager |
Sound Department
| Fausto Ancillai | ... | sound mixer |
| Cesare D'Amico | ... | sound editor |
| Pino Mastroianni | ... | sound engineer |
| Maurizio Merli | ... | boom operator |
| Giorgio Pallotta | ... | sound |
Special Effects by
| Riccardo Pallottini | ... | special effects photography |
| Augusto Possanza | ... | special effects |
| Waldomiro Reis | ... | special effects |
Camera and Electrical Department
| Manuel Veloso Da Cunha | ... | focus puller |
| Carlos Alberto De Campos | ... | focus puller |
| Sante Federici | ... | gaffer |
| Giancarlo Formichi | ... | underwater camera operator |
| Roberto Formichi | ... | assistant underwater camera operator |
| Giuseppe Maccari | ... | camera operator |
| Mauro Marchetti | ... | focus puller |
| Miguel Parente | ... | camera operator |
| Cláudio Portioli | ... | key grip (as Claudio Portioli) |
| Sergio Profili | ... | key grip |
| Gianfranco Salis | ... | still photographer |
| Giacomo Tomaselli | ... | key grip |
Costume and Wardrobe Department
| Ron Archer | ... | wardrobe: Lee Majors |
| Vera Geni Borges | ... | wardrobe assistant |
| Lucia Curia | ... | costumes: Ms. Hemingway |
| Claudette Soares Da Silva | ... | wardrobe assistant |
| Babs Gray | ... | wardrobe (uncredited) |
Editorial Department
| Loredana Cruciani | ... | assistant editor |
| Pina La Rosa | ... | assistant editor |
Location Management
| Maurizio Anticoli | ... | location auditor |
Music Department
| Gianfranco Plenizio | ... | conductor |
Script and Continuity Department
| Eva Koltay | ... | continuity |
Additional Crew
| Lewis E. Ciannelli | ... | dialogue director |
| Paul Costello | ... | dialogue coach |
| Osmar Soares Da Silva | ... | production assistant |
| Pedro Dahan | ... | production assistant |
| Sully Drummond | ... | production assistant |
| Lew Grade | ... | presenter (as Sir Lew Grade) |
| Carlo Ponti | ... | presenter |
| Mark Princi | ... | production consultant |
| Jose Roberto Rosa | ... | production assistant |
| Cristiano Luis Sottano | ... | production assistant |
| Herbert V. Theis | ... | underwater piranha sequences |