Directed by
| Jesús Franco | ... | (as Jess Franco) |
Writing Credits (in alphabetical order)
| Jesús Franco | ... | (screenplay) (as Jess Franco) |
| Jesús Franco | ... | (story) |
| Mary Shelley | ... | (characters) (uncredited) |
Cast (in credits order)
| Alberto Dalbés | ... | Doctor Seward (as Alberto Dalbes) | |
| Dennis Price | ... | Doctor Frankenstein (as Denis Price) | |
| Howard Vernon | ... | Cagliostro | |
 |
Beatriz Savón | ... | Vera Frankenstein |
| Anne Libert | ... | Melisa | |
| Fernando Bilbao | ... | Monstruo | |
| Carmen Yazalde | ... | Madame Orloff (as Britt Nichols) | |
| Luis Barboo | ... | Caronte | |
|
|
Daniel White | ... | Tanner (as Daniel Gerome) |
|
|
Doris Thomas | ... | Abigail (as Doris Tom) |
| Lina Romay | ... | Esmeralda (in version "La maldición de Frankenstein") | |
| Jesús Franco | ... | Morpho (as J. Franco) | |
| Rest of cast listed alphabetically: | |||
| Eduardo Calvo | ... | Dr. Frankenstein (voice) (uncredited) | |
|
|
Eduarda Pimenta | ... | Asistente de Vera Frankenstein (uncredited) |
Produced by
| Arturo Marcos | ... | executive producer |
Music by
| Vladimir Cosma | ||
| Vincent Gemignani | ... | (as Vincent Geminiani) |
| Robert Hermel | ||
| Armando Sciascia | ... | (as H. Tical) |
| Daniel White | ... | (as Daniel Whitte) |
Cinematography by
| Raúl Artigot | ... | director of photography (as Raul Artigot) |
Editing by
| Roberto Fandiño | ||
Production Design by
| Jean d'Eaubonne | ||
Set Decoration by
| J. de Alberto | ||
Makeup Department
| Monique Adélaïde | ... | makeup artist |
Production Management
| Victor Dacosta | ... | production manager (as Victor De Costa) |
Second Unit Director or Assistant Director
| José Antonio Arévalo | ... | assistant director |
| Robert de Nesle | ... | assistant director |
Script and Continuity Department
| Nicole Guettard | ... | script supervisor |
Additional Crew
| Francisco Arenzana | ... | voice dubbing: Daniel White (uncredited) |
| Eduardo Calvo | ... | voice dubbing: Dennis Price (uncredited) |
| Manolo García | ... | voice dubbing: various (uncredited) |
| Ángela González | ... | voice dubbing: Beatriz Savón (uncredited) |
| José Guardiola | ... | voice dubbing: Howard Vernon (uncredited) |
| Federico Guillén | ... | voice dubbing: Luis Barboo (uncredited) |
| Josefina de Luna | ... | voice dubbing (uncredited) |
| Simón Ramírez | ... | voice dubbing: Alberto Dalbés (uncredited) |
| María Romero | ... | voice dubbing: Anne Libert (uncredited) |
| Matilde F. Vilariño | ... | voice dubbing: Lina Romay (uncredited) |
