Directed by
| Elio Scardamaglia | ... | (as Michael Hamilton) |
| Lionello De Felice | ... | (uncredited) |
Writing Credits
| Ernesto Gastaldi | ... | (screenplay) (as Julian Berry) and |
| Luciano Martino | ... | (screenplay) (as Martin Hardy) |
| Ernesto Gastaldi | ... | (novel) (as J. Berry) and |
| Luciano Martino | ... | (novel) (as M. Hardy) |
| Albert G. Miller | ... | (dialogue: German version) (as Albert Miller) |
| R. Wayland Williams | ... | (novel) (as Robert Williams) |
Cast (in credits order) complete, awaiting verification
| William Berger | ... | Dr. Robert Vance | |
| Françoise Prévost | ... | Gisèle de Brantome | |
 |
Mary Young | ... | Lizabeth Vance |
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Barbara Wilson | ... | Mary Stuart |
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Philippe Hersent | ... | Marc de Brantome |
| Harriet Medin | ... | Sheena (as Harriet White) | |
| Germano Longo | ... | Ivan (as Grant Laramy) | |
| Massimo Righi | ... | Fred (as Max Dean) | |
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Delfi Mauro | ... | Laura - Lizabeth's Sister (as Delphine Maurin) |
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Anna Maria Polani | ... | Janey - Hospital Patient (as Ann Sherman) |
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Rossella Bergamonti | ... | Katty - Nurse (as Patricia Carr) |
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William Gold | ... | Walter |
Produced by
| Elio Scardamaglia | ... | producer (as Michael Hamilton) |
Music by
| Francesco De Masi | ... | (as Frank Mason) |
Cinematography by
| Marcello Masciocchi | ... | director of photography (as Marc Lane) |
Editing by
| Alberto Gallitti | ... | (as Richard Hartley) |
Makeup Department
| Massimo Giustini | ... | makeup artist (as Max Huston) |
Production Management
| Piero Lazzari | ... | production manager (as Peter Taylor) |
Second Unit Director or Assistant Director
| Roberto Pariante | ... | assistant director (as Montague Jackson) |
Art Department
| Walter Parkington | ... | set construction |
Sound Department
| Bernardino Fronzetti | ... | sound recordist (as Dino Fronzetti) (as Oliver Scott) |
Camera and Electrical Department
| Thomas Rawlins | ... | camera operator |
Music Department
| Francesco De Masi | ... | conductor (as Frank Mason) |
Script and Continuity Department
| Alberto Salvatori | ... | continuity (as Alberto Salvatore) |
