Directed by
| Alberto De Martino | ... | (as Martin Herbert) |
Writing Credits (in alphabetical order)
| Gianfranco Clerici | ... | (as Frank Clark) |
| Alberto De Martino | ... | (story) (as Martin Herbert) |
| Vincenzo Mannino | ... | (as Frank Weller) |
Cast (in credits order)
| David Warbeck | ... | Craig Milford | |
| Laura Trotter | ... | Joanna Fitzgerald | |
| Loris Loddi | ... | Dr. Elliott (as Lawrence Loddi) | |
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Giorgio Favretto | ... | Roach (as George Favretto) |
| John Ireland | ... | Anderson | |
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Victor Beard | ... | Inspector Morris (as Victor Loren Beard) |
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Sergio Rossi | ... | Professor Schweikert (as Sandy Russell) |
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Giorgio Bonora | ... | Dr. Warmick (as George Bonner) |
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David Baxter | ||
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Stefano Mazzitelli | ... | (as Stephen Masters) |
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Charles Harris | ||
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Alessandra Canale | ... | Susan (as Sally Cantor) |
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Pat Starke | ... | Dr. Janet Stein |
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Chris Gerard | ||
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Mauro Magliozzi | ... | (as Morry Markham) |
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Nazzareno Cardinali | ... | (as Nathan Carlin) |
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Dario Danieli | ||
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Fabio Lattanzi | ... | (as Frank Tazanian) |
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Guido Sacchi | ... | (as Guy Saxton) |
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Claudio Coletti | ... | (as Gary Coletti) |
Produced by
| Luciano Martino | ... | producer |
| Giorgio Salvioni | ... | producer |
Music by
| Detto Mariano | ... | (as Robert Marry) |
Cinematography by
| Gianlorenzo Battaglia | ... | (as Larry Battle) |
| Paolo D'Ottavi | ... | (as Paul Doty) |
Editing by
| Gianfranco Amicucci | ... | (as Frank Amicucci) |
Makeup Department
| Barbara Morosetti | ... | makeup artist |
Production Management
| Fabrizio De Martino | ... | unit production manager |
Special Effects by
| Paolo Ricci | ... | special weapon effects (as Paul Rich) |
| Sergio Stivaletti | ... | special effects coordinator |
Camera and Electrical Department
| Roberto Calabró | ... | still photographer (as Bob Caldwell) |
Additional Crew
| Carolyn De Fonseca | ... | voice dubbing: Laura Trotter (english version) (uncredited) |
| Ted Rusoff | ... | voice dubbing (US version) (uncredited) |
| Robert Spafford | ... | voice dubbing (US version) (uncredited) |