Directed by
| Jesús Franco | ... | (as Jess Franco) |
Writing Credits (in alphabetical order)
| Mariana Alcoforado | ... | (love letters) |
| Erwin C. Dietrich | ... | (as Manfred Gregor) |
| Christine Lembach | ... | (dialogue) |
Cast (in credits order) verified as complete
| Susan Hemingway | ... | Maria Rosalea Coutinho | |
| William Berger | ... | Father Vicente | |
| Herbert Fux | ... | Satan | |
| Ana Zanatti | ... | Mother Alma, the Grand Priestess | |
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Aida Vargas | ... | Joanna, a Nun (as Aida Kargas) |
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Vítor Mendes | ... | António Fernando Queiroz de Melo, the Mayor (as Victor Mendés) |
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Aida Gouveia | ... | Antónia, a Nun (as Isa Schneider) |
| Herman José | ... | Manuel Gonçalves, the Prince (as Hermann Krippahl) | |
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José Viana | ... | The Grand Inquisitor (as Jose Viana) |
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Patrícia Leal | ... | Maria's Mother (as Patricia Da Silva) |
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Victor de Sousa | ... | Inquisitor's Aid |
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Nicolau Breyner | ... | Prince's Aid |
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Clara Marabuto | ... | Josefina, a nun |
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Esther Studer | ... | Nun at ritual |
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Dagmar Bürger | ... | Nun at ritual |
| Anton Diffring | ... | Old Priest | |
Produced by
| Erwin C. Dietrich | ... | producer |
| Max Dora | ... | executive producer |
Music by
| Walter Baumgartner | ||
Cinematography by
| Peter Baumgartner | ||
Editing by
| Marie-Luise Buschke | ... | (as Marie-Louise Buschke) |
Art Direction by
| David Quintans | ||
Production Management
| Edouard A. Stöckli | ... | production manager (as Eduard A. Stöckli) |
Second Unit Director or Assistant Director
| David Quintans | ... | assistant director (uncredited) |
Sound Department
| Klaus Kunsemüller | ... | sound |
| Hubertus Schmandtke | ... | sound (as Hubertus Schmandke) |
