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Inma de Santis as Sheila Roberts |
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María del Puy as Dr. Liza Greene |
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Jack Taylor as Dr. Jack Morris |
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Luis Prendes as Mr. Roberts |
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Alicia Altabella as Mrs. Roberts |
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José Orjas as Benjamin |
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Alberto Fernández as Dr. Kline |
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José Lifante as The Man |
| Directing | Jorge Darnell | Director |
| Writing | Jorge Darnell | Writer |
| Production | Antonio Cuevas | Executive Producer |
| Camera | José Luis Alcaine | Director of Photography |
| Art | Adolfo Cofiño | Set Decoration |
| Costume & Make-Up | Mercedes Guillot | Hairstylist |
| Costume & Make-Up | Miguel Sesé | Makeup Artist |
| Production | José G. Jacoste | Production Manager |
| Crew | Julio Arribas | Property Master |
| Crew | Pablo Pérez | Special Effects |
| Camera | Víctor Benítez | Still Photographer |
| Editing | David Raposo | Assistant Editor |
| Sound | José Nieto | Music |
