Directed by
| Ferdinando Baldi | ||
Writing Credits
| Lloyd Battista | ... | (written by) and |
| Jim Bryce | ... | (written by) and |
| Jerry Lazarus | ... | (written by) |
| Tony Anthony | ... | (story) (as Tony Petitto) and |
| Gene Quintano | ... | (story) |
Cast (in credits order)
| Tony Anthony | ... | J.T. Striker | |
| Ana Obregón | ... | Liz (as Ana Obregon) | |
| Gene Quintano | ... | Edmond | |
 |
Jerry Lazarus | ... | Rick |
| Francisco Rabal | ... | Sócrates | |
| Emiliano Redondo | ... | Brother Jonas | |
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Fernando Villena | ... | Professor Montgomery (as Francisco Villena) |
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Kate Levan | ... | Possessed Woman |
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Lewis Gordon | ... | Popo |
Produced by
| Tony Anthony | ... | producer |
| Yoram Globus | ... | executive producer |
| Menahem Golan | ... | executive producer |
| Marshall Lupo | ... | associate producer |
| Luis Méndez | ... | producer (uncredited) |
| Gene Quintano | ... | producer |
Music by
| Ennio Morricone | ... | (music composed by) |
Cinematography by
| Marcello Masciocchi | ... | director of photography |
| Giuseppe Ruzzolini | ... | director of photography |
Editing by
| Franco Fraticelli | ||
Art Direction by
| Luciano Spadoni | ||
Costume Design by
| María Eugenia Escrivá | ... | (as Eugenia Escriva) |
Makeup Department
| Carlo De Marchis | ... | makeup special effects |
Production Management
| Francisco Bellot | ... | production manager |
| Nino Milano | ... | production supervisor |
Sound Department
| Roberto Arcangeli | ... | sound effects |
| Italo Cameracanna | ... | foley artist / sound effects editor |
| Sotir Gjika | ... | sound effects editor |
Special Effects by
| Germano Natali | ... | special effects |
| Goffredo Unger | ... | special effects supervisor (as Fredy Unger) |
Stunts
| Nazzareno Zamperla | ... | stunt director (as Neno Zamperla) |
| Solier Fagundez | ... | stunts (uncredited) |
Camera and Electrical Department
| Vasco Benucci | ... | focus puller |
| Ricardo Navarrete | ... | camera operator |
Editorial Department
| Dennis McNeill | ... | color timer |
Music Department
| Ennio Morricone | ... | conductor |
Additional Crew
| Harry N. Blum | ... | production associate |
| Arthur M. Herskovitz | ... | production associate |
| Stan Loth | ... | 3-D technical supervisor |
| Nancy Quintano | ... | assistant to producers |
| Félix Acaso | ... | voice dubbing: Fernando Villena (uncredited) |
| Héctor Cantolla | ... | voice dubbing: Tony Anthony (uncredited) |
| Paloma Escola | ... | voice dubbing: Ana Obregón (uncredited) |
| Eduardo Jover | ... | voice dubbing: Jerry Lazarus (uncredited) |
| José Martínez Blanco | ... | voice dubbing: Lewis Gordon (uncredited) |
| Jesús Nieto | ... | voice dubbing: Gene Quintano (uncredited) |
| Claudio Rodríguez | ... | voice dubbing: Emiliano Redondo (uncredited) |
