Directed by
| Enrique López Eguiluz | ... | (as Enrique Eguiluz) |
Writing Credits
| Juan Logar | ... | (screenplay) (as Juan) |
Cast (in credits order)
 |
Juan Logar | ... | Jean (as Juan) |
| Irene Gutiérrez Caba | ... | Madre de Jean (as Irene G. Caba) | |
| Pepe Rubio | ... | Henry (as José Rubio) | |
| Yelena Samarina | ... | Susan | |
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Annie Sinigalia | ... | Jacqueline |
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Manuel Manzaneque | ... | Pierre |
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Ángel Soler | ... | Comisario |
| Tomás Blanco | ... | Padre de Jean | |
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Nuria Gimeno | ... | Fanny (as Nuria Jimeno) |
| Antonio Jiménez Escribano | ... | Sirviente (as Antonio Escribano) | |
| Paul Naschy | ... | Inspector de policía (as David Molba) | |
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Ángel Celdrán | ... | Director del colegio |
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Ángel Menéndez | ... | Doctor |
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Francisco Garzón | ||
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Eduardo Alberto | ... | André |
Music by
| Juan Logar | ... | (as Juan) |
Cinematography by
| Raúl Artigot | ... | director of photography |
Editing by
| Juan Pisón | ||
Set Decoration by
| Teddy Villalba | ||
Makeup Department
| Manuel Martín | ... | key makeup artist |
| Manuel Novoa | ... | assistant makeup artist |
Production Management
| Enrique Cabeza | ... | production manager |
Second Unit Director or Assistant Director
| Joaquín Palomares | ... | assistant director |
Art Department
| Félix Corella | ... | property master |
Camera and Electrical Department
| César Benítez | ... | still photographer |
| Francisco Gómez Conde | ... | camera operator (as Francisco G. Conde) |
| Fernando Navarro | ... | assistant camera |
Editorial Department
| Sebastián Herranz | ... | assistant editor |
Script and Continuity Department
| Paul Naschy | ... | script supervisor (as Jacinto Molina) |
Additional Crew
| Francisco García Gárgoles | ... | production assistant (as Francisco G. Gargoles) |
| Antonio L. Padial | ... | titles (as A.L. Padial) |
| Félix Acaso | ... | voice dubbing: José Rubio (uncredited) |
| Manuel Aguilera | ... | voice dubbing (uncredited) |
| José Luis Baltanás | ... | voice dubbing (uncredited) |
| Eduardo Calvo | ... | voice dubbing: Antonio Jiménez Escribano (uncredited) |
| Maripe Castro | ... | voice dubbing: Yelena Samarina (uncredited) |
| Rafael de Penagos | ... | voice dubbing (uncredited) |
| Josefina de Luna | ... | voice dubbing: Nuria Gimeno (uncredited) |
| Fernando Mateo | ... | voice dubbing: Paul Naschy (uncredited) |
| Claudio Rodríguez | ... | voice dubbing: Tomás Blanco (uncredited) |
| José Luis Yzaguirre | ... | voice dubbing (uncredited) |
