Directed by
| Camillo Mastrocinque | ... | (as Thomas Miller) |
Writing Credits
| Tonino Valerii | ... | (story and screenplay) (as Robert Bohr) & |
| Ernesto Gastaldi | ... | (story and screenplay) (as Julian Berry) |
| María del Carmen Martínez Román | ... | (story) (uncredited) |
| Sheridan Le Fanu | ... | (novel) (uncredited) |
| José Luis Monter | ... | (uncredited) |
Cast (in credits order) complete, awaiting verification
| Christopher Lee | ... | Count Ludwig Karnstein | |
| Adriana Ambesi | ... | Laura Karnstein (as Audry Amber) | |
| Ursula Davis | ... | Ljuba | |
| José Campos | ... | Friedrich Klauss | |
| Véra Valmont | ... | Annette (as Vera Valmont) | |
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Angela Minervini | ... | Tilde Karnstein (as Angel Midlin) |
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Carla Calò | ... | Ljuba's Mother (as Cicely Clayton) |
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Nela Conjiu | ... | Rowena (as Nela Conjiú) |
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José Villasante | ... | Cedric the Butler |
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Benito Carif | ... | Undertaker (as Bill Curtis) |
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Ignazio Balsamo | ... | Undertaker (as James Brightman) |
| Rest of cast listed alphabetically: | |||
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Lee Campos | ... | Undertaker (uncredited) |
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José Cortés | ... | Coachman (uncredited) |
| John Karlsen | ... | Franz Karnstein (uncredited) | |
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Marzio Margine | ... | Hunchback (uncredited) |
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Rafael Vaquero | ... | Undertaker (uncredited) |
Produced by
| Samuel Z. Arkoff | ... | executive producer: US version |
| Mario Mariani | ... | producer (as William Mulligan) |
| James H. Nicholson | ... | executive producer: US version |
Music by
| Carlo Savina | ... | (as Herbert Buckman) |
Cinematography by
| Julio Ortas | ... | director of photography |
| Giuseppe Aquari | ... | (uncredited) |
Editing by
| Roberto Cinquini | ... | (as Herbert Markle) |
Production Design by
| Demofilo Fidani | ... | (as Demos Filos) |
Costume Design by
| Mila Vitelli Valenza | ... | (as Milose) |
Makeup Department
| Joe Carlin | ... | makeup artist |
| Stephan Carlin | ... | hair stylist |
Production Management
| Hector Corey | ... | production manager |
| Marcel Harrods | ... | production supervisor |
Second Unit Director or Assistant Director
| Tonino Valerii | ... | assistant director (as Robert Bohr) |
Art Department
| Remy Villar | ... | assistant production designer |
Sound Department
| Ferdinand Barzi | ... | sound |
| Ferdinand Larkin | ... | sound |
Camera and Electrical Department
| Noel Lardner | ... | camera operator |
| Charles Sundberg | ... | assistant camera |
Editorial Department
| Judy Marlow | ... | assistant editor |
Music Department
| Carlo Savina | ... | conductor (as James Munshin) |
Script and Continuity Department
| Piper Samson | ... | script supervisor |
Additional Crew
| Heinz Bischop | ... | production secretary |
| Pino Colizzi | ... | italian voice dubbing: José Campos (uncredited) |
| Mario Colli | ... | italian dubbing director (uncredited) |
| Noemi Gifuni | ... | italian voice dubbing: Adriana Ambesi (uncredited) |
| Giorgio Piazza | ... | italian voice dubbing: Christopher Lee (uncredited) |
| Robert Spafford | ... | english dubbing director (uncredited) |
| Luisella Visconti | ... | italian voice dubbing: Ursula Davis (uncredited) |