Directed by
| Luis María Delgado | ||
| Fernando Fernán Gómez | ||
Writing Credits
| Edgar Allan Poe | ... | (story "The System of Doctor Tarr and Professor Fether") |
| Ramón Gómez de la Serna | ... | (story "La mona de imitación") |
| Aleksandr Kuprin | ... | (story "Una equivocación") |
| Leonid Andreyev | ... | (story "El médico loco") |
| Fernando Fernán Gómez | ... | (adaptation) & |
| Francisco Tomás Comes | ... | (adaptation) |
Cast (in credits order)
| Susana Canales | ... | Amanda | |
| Julio Peña | ... | Miguel | |
| Elvira Quintillá | ... | Mercedes | |
| Antonio Vico | ... | Marido de Mercedes | |
| María Asquerino | ... | Eugenia | |
| José María Lado | ... | Dr. Posada | |
| Fernando Fernán Gómez | ... | Carlos | |
| María Rivas | ... | Juana | |
| Carlos Díaz de Mendoza | ... | Dr. Garcés | |
| Vicente Parra | ... | Alejo | |
| Ana de Leyva | ... | Viajera en tren | |
 |
Manuel San Román | ||
| Rafael Calvo Revilla | ... | Director del manicomio | |
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Cayetano Torregrosa | ||
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José Alburquerque | ||
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Ernestina Siria | ||
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María Baus | ||
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Concha López Silva | ... | Loca gallo |
| Margarita Lozano | |||
| Camilo José Cela | ... | Sr. Haro, loco asno | |
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Alfredo Marqueríe | ... | Loco aceituna |
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Aurora de Alba | ... | Mary Luz |
| Rest of cast listed alphabetically: | |||
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Gabilán | ||
| Manuel Alexandre | ... | Hombre que finge desmayarse (uncredited) | |
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José Altabella | ... | Loco (uncredited) |
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Jesús Juan Garcés | ... | Loco que ríe (uncredited) |
Music by
| Manuel Parada | ||
Cinematography by
| Cecilio Paniagua | ||
| Sebastián Perera | ||
Editing by
| Félix Suárez Inclán | ||
Set Decoration by
| Eduardo Torre de la Fuente | ||
Makeup Department
| Carlos Nin | ... | makeup artist |
Production Management
| Ramón Plana | ... | production manager |
Second Unit Director or Assistant Director
| José María Ochoa | ... | assistant director |
Art Department
| Tomás Fernández | ... | set dresser (as T. Fernandez) |
| A. Luna | ... | props |
Sound Department
| Antonio Fernández Roces | ... | sound (as A. F. Roces) |
| Felipe Sáez Barea | ... | sound |
Camera and Electrical Department
| Mario Pacheco | ... | second operator |
| Rafael Pacheco | ... | still photographer |
Costume and Wardrobe Department
| Humberto Cornejo | ... | wardrobe |
Additional Crew
| Carlos Boué | ... | production assistant |
| Manuel Guitián | ... | voice dubbing: Alfredo Marquerie (uncredited) |
