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Lon Chaney Jr. as The Mummified Werewolf |
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Germán Valdés as Casimiro |
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Yolanda Varela as Paquita |
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Yerye Beirute as Professor Sebastian |
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Alfredo Wally Barrón as Nacho |
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Agustín Fernández as Rito |
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Óscar Ortiz de Pinedo as Dr. Lorenzo Salazar |
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Consuelo Guerrero de Luna as Dr. Salazar's Patient |
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Rafael Estrada as Professor Estrada |
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Dacia González as Mesera |
| Art | Jorge Fernández | Art Direction |
| Directing | Gilberto Martínez Solares | Director |
| Writing | Gilberto Martínez Solares | Writer |
| Writing | Juan García | Writer |
| Visual Effects | Jorge Benavides | Effects Supervisor |
| Art | Jorge Fernández | Production Design |
| Writing | Fernando de Fuentes | Writer |
| Editing | Carlos Savage | Editor |
| Crew | Raúl Martínez Solares | Cinematography |
| Sound | Luis Hernández Bretón | Music |
| Production | Fernando de Fuentes Jr. | Producer |
