Cast

Boris Karloff

Prof. John Mayer

Enrique Guzmán

Dr. Paul Rosten

Christa Linder

Laura

Maura Monti

Dr. Isabel Reed

Yerye Beirute

Thomas

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Tere Valez

Nancy

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Griselda Mejía

Prostitute

Sergio Kleiner

Alien

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Mariela Flores

Deaf-mute victim

Tito Novaro

Gen. Nord

Crew

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José Luis González de León

Director (Directing)

Jack Hill

Director (Directing)

Juan Ibáñez

Director (Directing)

Juan Ibáñez

Writer (Writing)

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Enrico C. Cabiati

Original Music Composer (Sound)

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Raúl Domínguez

Director of Photography (Camera)

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Vicente Tostado

Costume Design (Costume & Make-Up)

Karl Schanzer

Writer (Writing)

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José Luis Cerrada

Production Manager (Production)

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Raul J. Casso

Editor (Editing)