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José Elías Moreno as Dr. Krallman |
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Carlos López Moctezuma as Goyo |
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Армандо Сильвестре as Lt. Arturo Martinez |
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Norma Lazareno as Lucy Ossorio |
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Agustín Martínez Solares as Julio Krallman |
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Gerardo Zepeda as Monstruo |
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Noelia Noel as Redhead victim |
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Gina Morett as Woman in Shower |
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Nathanael León as Security Chief |
| Directing | René Cardona | Director |
| Writing | René Cardona Jr. | Story |
| Writing | René Cardona | Writer |
| Art | Carlos Arjona | Set Decoration |
| Production | Alfredo Salazar | Producer |
| Art | Javier Torres Torija | Production Design |
| Sound | Antonio Díaz Conde | Original Music Composer |
| Camera | Raúl Martínez Solares | Director of Photography |
| Production | Guillermo Calderón | Executive Producer |
| Editing | Jorge Bustos | Editor |
