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Gonzalo Suárez as Narrator/Mephistopheles/Octavio Beiral |
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Alberto Puig as Doctor Fausto |
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Olga Vidali as Helena de Troya |
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Gila Hodgkinson as Margarita |
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Emma Cohen as Mujer de la botella |
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José Arranz as Euforion |
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Teresa Gimpera as Esfinge |
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Charo López as Mujer del brebaje |
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Rublo as Perro |
| Directing | Gonzalo Suárez | Director |
| Camera | José Gaspar | Director of Photography |
| Production | Luis del Castillo | Producer |
| Camera | Pilar Villarrazán | Still Photographer |
| Sound | Jordi Sangenís | Sound |
| Production | Gonzalo Suárez | Producer |
| Sound | Salvador Pueyo | Music |
| Camera | Carlos Suárez | Camera Operator |
| Editing | Maricel Bautista | Editor |
| Editing | Bautista Treig | Assistant Editor |
| Writing | Gonzalo Suárez | Writer |
| Camera | Francisco Marín | Assistant Camera |
