Directed by
| Riccardo Freda | ... | (as Robert Hampton) |
Writing Credits (in alphabetical order)
| Oreste Biancoli | ... | (story and screenplay) (as Robert Davidson) |
| Oreste Biancoli | ... | (story) (as Robert Davidson) |
| Riccardo Freda | ... | (screenplay) (as Robert Hampton) |
Cast (in credits order) complete, awaiting verification
| Barbara Steele | ... | Margaret Hichcock | |
| Peter Baldwin | ... | Dr. Charles Livingstone | |
 |
Elio Jotta | ... | Dr. John Hichcock (as Leonard G. Elliot) |
| Harriet Medin | ... | Catherine Wood - Housekeeper (as Harriet White) | |
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Carol Bennet | ... | Woman |
|
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Carlo Kechler | ... | Police Superintendent (as Charles Kechler) |
| Umberto Raho | ... | Canon Owens (as Raoul H. Newman) | |
|
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Reginald Price Anderson | ... | Albert Fisher |
Produced by
| Luigi Carpentieri | ... | producer (as Louis Mann) |
Music by
| Franco Mannino | ... | (as Franck Wallace) |
Cinematography by
| Raffaele Masciocchi | ... | director of photography (as Donald Green) |
Editing by
| Ornella Micheli | ... | (as Donna Christie) |
Art Direction by
| Mario Chiari | ... | (as Sammy Fields) |
Makeup Department
| Massimo Giustini | ... | makeup artist (as Max Justins) |
| Charles Seaman | ... | hair stylist |
Production Management
| Lou D. Kelly | ... | production manager |
Second Unit Director or Assistant Director
| Silvana Merli | ... | assistant director (as Silvy Black) |
Art Department
| Enrico De Seta | ... | poster artist |
Sound Department
| Cristopher Curtis | ... | sound |
Camera and Electrical Department
| Antonio Schiavo Lena | ... | camera operator (as Anthony Taylor) |
| Piero Servo | ... | camera loader |
Costume and Wardrobe Department
| Mary McCharty | ... | wardrobe |
Music Department
| Franco Mannino | ... | conductor (as Franck Wallace) |
Additional Crew
| Romolo Germano | ... | production assistant (as Rommy Deutch) |
| Lucky Reed | ... | production assistant |
| Geoffrey Copleston | ... | voice dubbing: Umberto Raho (english version) (uncredited) |
