José Elías Moreno
Dr. Krallman
José Elías Moreno
Dr. Krallman
Carlos López Moctezuma
Goyo
Armando Silvestre
Lt. Arturo Martinez
Norma Lazareno
Lucy Ossorio
Agustín Martínez Solares
Julio Krallman
Gerardo Zepeda
Monstruo
Noelia Noel
Victim
Gina Morett
Woman in Shower
Nathanael León
Security Chief
René Cardona Jr.
Story
René Cardona
Director
René Cardona
Writer
Guillermo Calderón
Executive Producer
Alfredo Salazar
Producer
Antonio Díaz Conde
Original Music Composer
Raúl Martínez Solares
Director of Photography
Jorge Busto
Editor
Javier Torres Torija
Production Design
Carlos Arjona
Set Decoration