Directed by
| Pedro L. Ramírez | ... | (as Pedro L. Ramirez) |
Writing Credits
| Juan Gallardo Muñoz | ... | (story) (as Juan Gallardo) |
| Juan Gallardo Muñoz | ... | (screenplay) (as Juan Gallardo) |
Cast (in credits order)
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Wal Davis | ... | Derek |
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Norma Kastel | ... | Virginia Kendall (as Norma Kastell) |
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Ada Tauler | ... | Marina |
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Ricardo Vázquez | ... | Zachary Kendall (as Richard Kendall) |
| Barta Barri | ... | Comisario (as Barta Barry) | |
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María Elena Arpón | ... | Enfermera Tessy (as Mª Elena Arpon) |
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Rex Martín | ... | Marco |
| Víctor Israel | ... | Pedro | |
| Montserrat Prous | ... | Mónica (as Monserrat Proust) | |
| Gustavo Re | ... | Miguel Toledo | |
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Susana Taber | ... | Hilde Schneider |
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Agustín Bescos | ... | Doctor (as Agustín Besco) |
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Richard Kolin | ... | Selwyn Kendall |
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Víctor Vilens | ||
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Gili Angli | ||
Produced by
| Ricardo Vázquez | ... | executive producer |
Cinematography by
| Antonio L. Ballesteros hijo | ... | director of photography (as Antonio Lopez Ruiz) |
Editing by
| Ramon Quadreny | ... | (as Ramon Cuadreny) |
Makeup Department
| Elena Cervera | ... | assistant makeup artist |
| Adela del Pino | ... | makeup artist |
| María Carmen Fletes | ... | hair stylist (as Mª Carmen Fletes) |
Production Management
| Antonio Cervera | ... | production manager |
Second Unit Director or Assistant Director
| Ricardo Vázquez del Pino | ... | assistant director (as Ricardo Vázquez Jr.) |
Art Department
| Alfredo Montenegro | ... | property master |
Camera and Electrical Department
| Luis Muñoz Alcolea | ... | assistant camera (as Luis M. Alcolea) |
| Antonio Piñero | ... | camera operator |
| Julio Sánchez Caballero | ... | still photographer (as Julio G. Caballero) |
Editorial Department
| Susana Lemoine | ... | assistant editor |
Script and Continuity Department
| Gloria Roldán | ... | script supervisor |
Additional Crew
| Eugenio Villar | ... | production assistant |
| José Luis Vázquez | ... | second production assistant (as Jose L. Vazquez) |
| Manuel Cano | ... | voice dubbing: Wal Davis (uncredited) |
| Roser Cavallé | ... | voice dubbing (uncredited) |
| Francisco Garriga | ... | voice dubbing: Victor Israel (uncredited) |
| Rosa Guiñón | ... | voice dubbing: Monteserrat Prous (uncredited) |
| Rogelio Hernández | ... | voice dubbing: Ricardo Vázquez (uncredited) |
| Luis Posada Mendoza | ... | voice dubbing: Barta Barri (uncredited) |
| Ricard Solans | ... | voice dubbing: Rex Martín (uncredited) |
| María Luisa Solá | ... | voice dubbing: Ada Tauler (uncredited) |
| Fernando Ulloa | ... | voice dubbing: Gustavo Re (uncredited) |