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Ramón Gay as Dr. Eduardo Almada |
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Rosita Arenas as Flor Sepúlveda |
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Luis Aceves Castañeda as Dr. Krupp |
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Crox Alvarado as Pinacate |
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Emma Roldán as Criada |
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Julián de Meriche as Doctor conferencia |
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Estela Inda as Aztec Chanteuse |
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Jorge Mondragón as Dr. Sepúlveda |
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Arturo Martínez as Tierno |
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Salvador Lozano as Doctor Rios |
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Jaime González Quiñones as Pepe Almada |
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Ángel Di Stefani as Popoca |
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Jesús "Murciélago" Velázquez as El Murciélago |
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Enrique Llanes as Esbirro del Murciélago |
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Alberto Yáñez as Esbirro del Murciélago |
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Firpo Segura as Esbirro del Murciélago |
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Sergio Llanes as Esbirro del Murciélago |
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Maria Luisa Cortés as Espectadora conferencia |
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José Raúl Mena as José (criado) |
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Carlos Robles Gil as Espectador conferencia |
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Guillermo Hernández as Lobo |
| Directing | Rafael Portillo | Director |
| Editing | Jorge Bustos | Editor |
| Camera | Enrique Wallace | Director of Photography |
| Sound | Antonio Díaz Conde | Original Music Composer |
| Costume & Make-Up | Carmen Palomino | Makeup Artist |
| Production | Luis García de León | Production Manager |
| Production | Guillermo Calderón | Producer |
| Art | Javier Torres Torija | Production Design |
| Production | José Alcalde | Unit Production Manager |
| Writing | Alfredo Salazar | Writer |
| Writing | Guillermo Calderón | Writer |
