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Alberto Dalbés as Dr. Seward |
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Dennis Price as Dr. Frankenstein |
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Howard Vernon as Cagliostro |
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Beatriz Savón as Vera Frankenstein |
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Carmen Yazalde as Madame Orloff |
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Anne Libert as Melissa |
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Fernando Bilbao as Monstruo |
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Luis Barboo as Caronte |
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Daniel White as Tanner |
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Doris Thomas as Abigail |
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Jesús Franco as Morpho |
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Lina Romay as Esmeralda |
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Eduarda Pimenta as Asistente de Vera Frankenstein (uncredited) |
| Editing | Roberto Fandiño | Editor |
| Directing | Jesús Franco | Director |
| Writing | Jesús Franco | Screenplay |
| Camera | Raúl Artigot | Director of Photography |
| Sound | Daniel White | Original Music Composer |
| Art | Jean d'Eaubonne | Production Design |
| Production | Arturo Marcos | Executive Producer |
| Writing | Jesús Franco | Story |
| Art | J. de Alberto | Set Decoration |
| Sound | Vincent Gemignani | Music |
| Sound | Vladimir Cosma | Music |
| Sound | Armando Sciascia | Music |
| Sound | Robert Hermel | Music |
| Writing | Mary Shelley | Characters |
| Costume & Make-Up | Monique Adélaïde | Makeup Artist |
| Directing | José Antonio Arévalo | Assistant Director |
| Directing | Robert de Nesle | Assistant Director |
