Directed by
| Riccardo Freda | ||
| Mario Bava | ... | (uncredited) |
Writing Credits
| Piero Regnoli | ... | (story) & |
| Mario Bava | ... | (story) (as Rijk Sijöstrom) |
| Piero Regnoli | ... | (screenplay) and |
| Mario Bava | ... | (screenplay) (as Rijk Sijöstrom) and |
| Riccardo Freda | ... | (screenplay) |
| V.J. Rheims | ... | (final revisions written by: English version) (uncredited) |
Cast (in credits order) complete, awaiting verification
| Gianna Maria Canale | ... | Giselle du Grand / Margherita du Grand | |
| Carlo D'Angelo | ... | L'ispettore Chantal (as Carlo d'Angelo) | |
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Dario Michaelis | ... | Pierre Lantin |
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Wandisa Guida | ... | Laurette Robert |
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Angelo Galassi | ... | Ronald Fontaine (as Angiolo Galassi) |
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Renato Tontini | ... | L'assistente del professore Grand |
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Charles Fawcett | ... | Signor Robert |
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Gisella Mancinotti | ... | Amica di Laurette |
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Miranda Campa | ... | Signora Robert |
| Antoine Balpêtré | ... | Professor Julien du Grand (as Antoine Balpetré de la Comédie Française) | |
| Paul Muller | ... | Joseph Signoret | |
| Rest of cast listed alphabetically: | |||
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Armando Annuale | ... | Un uomo anziano al funerale (uncredited) |
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Larry Boston | ... | Unknown Role (uncredited) |
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Aristide Catoni | ... | Porter (uncredited) |
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Riccardo Freda | ... | Il dottore (uncredited) |
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Bert Goldstein | ... | Maitre D' (uncredited) |
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Ronny Holiday | ... | Nora (uncredited) |
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Joy Holliday | ... | Anita (uncredited) |
| Al Lewis | ... | Assistant (uncredited) | |
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Emilio Petacci | ... | L'antiquario (uncredited) |
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Barbara Rodell | ... | Lisette (uncredited) |
Produced by
| Luigi Carpentieri | ... | producer |
| Jonathan Daniels | ... | executive producer: English version (uncredited) |
| Ermanno Donati | ... | producer |
| Piero Donati | ... | producer (uncredited) |
| Victor Purcell | ... | executive producer: English version (uncredited) |
| Fouad Said | ... | associate producer: English version (uncredited) |
Music by
| Roman Vlad | ||
| Franco Mannino | ... | (uncredited) |
Cinematography by
| Mario Bava | ... | director of photography |
Editing by
| Roberto Cinquini | ||
Production Design by
| Beni Montresor | ||
Costume Design by
| Beni Montresor | ||
Makeup Department
| Franco Freda | ... | makeup artist |
| Ada Palombi | ... | hair stylist |
Production Management
| Claudio Agostinelli | ... | assistant production manager |
| Piero Donati | ... | production manager |
| Ron Honthaner | ... | in charge of production: English version (as Ronald Honthaner) |
Second Unit Director or Assistant Director
| Piero Regnoli | ... | assistant director |
| Ron Honthaner | ... | director of additional scenes: English version (uncredited) |
Sound Department
| Mario Messina | ... | sound |
Special Effects by
| Mario Bava | ... | special effects (uncredited) |
Camera and Electrical Department
| Corrado Bartoloni | ... | camera operator |
| Antonio Rinaldi | ... | gaffer (uncredited) |
Costume and Wardrobe Department
| Adriana Berselli | ... | assistant costume designer (as Adriana Berzelli) |
Editorial Department
| Fouad Said | ... | additional editor: English version |
Music Department
| Roman Vlad | ... | conductor |
Additional Crew
| Claudio Agostinelli | ... | production assistant |
| Mario Besesti | ... | voice dubbing: Antoine Balpêtré (uncredited) |
| Fiorella Betti | ... | voice dubbing: Wandisa Guida (uncredited) |
| Emilio Cigoli | ... | voice dubbing: Carlo D'Angelo (uncredited) |
| Dhia Cristiani | ... | voice dubbing: Ronny Holiday (uncredited) |
| Gualtiero De Angelis | ... | voice dubbing: Charles Fawcett (uncredited) |
| Nando Gazzolo | ... | voice dubbing: Paul Muller (uncredited) |
| Pino Locchi | ... | voice dubbing: Dario Michaelis (uncredited) |
| Bruno Persa | ... | voice dubbing: Riccardo Freda (uncredited) |
| Amilcare Pettinelli | ... | voice dubbing: Emilio Petacci (uncredited) |
| Clara Ristori | ... | voice dubbing: Gianna Maria Canale as Margherita (uncredited) |
| Fouad Said | ... | English language version (uncredited) |
| Lydia Simoneschi | ... | voice dubbing: Gianna Maria Canale as Giselle (uncredited) |
