Directed by
| Giuseppe Rosati | ... | (as Aaron Leviathan) |
Writing Credits
| Giuseppe Rosati | ... | (written by) (as Aaron Leviathan) |
Cast (in credits order)
| Gloria Guida | ... | Polly | |
| Leonard Mann | ... | Paul De Revere | |
| Joseph Cotten | ... | Sir Arthur Dundee | |
| Adolfo Celi | ... | Sir Harold Boyd | |
| Anthony Steel | ... | Supt. Jeff Hawks | |
| Janet Agren | ... | Lady Gloria Boyd | |
| Alida Valli | ... | Lady Clementine De Revere | |
| Franco Ressel | ... | Sgt. Phillips | |
| Paul Muller | ... | Gibson | |
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Mario Novelli | ... | Saboteur (as Antony Freeman) |
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Elio Stefanizzi | ... | Nurse |
| Claudio Gora | ... | Doctor | |
| Rest of cast listed alphabetically: | |||
| Kenneth Benda | ... | Old Gentleman (uncredited) | |
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Tom Felleghy | ... | Dr. Hobbes (uncredited) |
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Antonio Maimone | ... | Brooks (uncredited) |
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Giuseppe Marrocco | ... | Cameriere (uncredited) |
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Attilio Pelegatti | ... | Poliziotto fuori dalla villa (uncredited) |
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Filippo Perego | ... | Joseph Cotten's Butler (uncredited) |
| John Stacy | ... | Livingstone (uncredited) | |
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Maria Tedeschi | ... | Lady Clementine's Friend (uncredited) |
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Horst Weinert | ... | Dottore (uncredited) |
Music by
| Carlo Savina | ||
Cinematography by
| Giuseppe Bernardini | ... | (as Jerry Delawaree) |
Editing by
| Franco Fraticelli | ... | (as Franck Robertson) |
Art Direction by
| Roberto Ranucci | ... | (as Robert Frogs) |
Makeup Department
| Gloria Granati | ... | makeup artist |
Production Management
| Ferruccio Mosca | ... | general manager (as Ferry Fly) |
| Anselmo Parrinello | ... | production manager |
| Felice Ruffini | ... | production supervisor (as Felice Rufini) |
Sound Department
| Luciano Anzellotti | ... | special sound effects (as Luciano Anzelloti) |
| Romano Checcacci | ... | sound mixer |
Special Effects by
| Armando Grilli | ... | special effects |
Camera and Electrical Department
| Francesco Cerboni | ... | chief electrician (as Franco Cerboni) |
| Mario Filoni | ... | key grip |
| Marco Sperduti | ... | camera operator |
Editorial Department
| Sergio Fraticelli | ... | assistant editor |
Additional Crew
| Giulio Crescenzi | ... | administrator (as Giulio Crescenzi) (administrator CLC) |
| Pino Locchi | ... | dubbing director |
| Carlo Alighiero | ... | voice dubbing: John Stacy (uncredited) |
| Pino Colizzi | ... | voice dubbing: Leonard Mann (uncredited) |
| Luciano De Ambrosis | ... | voice dubbing (uncredited) |
| Arturo Dominici | ... | voice dubbing: Tom Felleghy (uncredited) |
| Micaela Esdra | ... | voice dubbing: Gloria Guida (uncredited) |
| Vittoria Febbi | ... | voice dubbing: Janet Agren (uncredited) |
| Sergio Graziani | ... | voice dubbing: Joseph Cotten (uncredited) |
| Alessandro Iovino | ... | voice dubbing: Paul Muller (uncredited) |
| Gianni Marzocchi | ... | voice dubbing: Franco Ressel (uncredited) |
| Glauco Onorato | ... | voice dubbing: Adolfo Celi (uncredited) |
| Sergio Rossi | ... | voice dubbing: Anthony Steel (uncredited) |
