Monster film and mad doctor spoof.
| Actor | Role |
|---|---|
 Germán ValdésPacifico Otero | Pacifico Otero |
 Manuel ValdésDoctor Lucas | Doctor Lucas |
 Sonia FurióLucia | Lucia |
| VVerónica LoyoMarilú Otero | Marilú Otero |
 Andrés SolerDoctor Ivanov | Doctor Ivanov |
 David SilvaProfessor Jones | Professor Jones |
 Agustín IsunzaEnfermero | Enfermero |
 Consuelo Guerrero de LunaDoña Angustias | Doña Angustias |
 Elizabeth DupeyrónLa chilindrina | La chilindrina |
 Nathanael León(uncredited) | (uncredited) |