Trailer
 | Susana Canales as Amanda |
 | Julio Peña as Miguel |
 | Elvira Quintillá as Mercedes |
 | Antonio Vico as Mercedes' Husband |
 | María Asquerino as Eugenia |
 | José María Lado as Dr. Posada |
 | Fernando Fernán Gómez as Carlos |
 | María Rivas as Juana |
 | Carlos Díaz de Mendoza as Dr. Garcés |
 | Vicente Parra as Alejo |
 | Ana de Leyva |
| Manuel San Román |
 | Rafael Calvo Revilla |
| Cayetano Torregrosa |
| José Alburquerque |
| Ernestina Siria |
| María Baus |
 | Concha López Silva |
 | Margarita Lozano |
 | Camilo José Cela |
| Alfredo Marqueríe |
 | Aurora de Alba |
 | Manuel Alexandre as (uncredited) |
| Ignacio de Paúl |
| Aurora de Alba as Mary Luz |
| Jesús Juan Garcés as Loco que ríe |
| José Altabella as Loco |
| Directing | |
| Fernando Fernán Gómez | Director |
Camera | |
| Sebastián Perera | Director of Photography |
Writing | |
| Edgar Allan Poe | Short Story |
Sound | |
| Antonio Fernández Roces | Sound |
Writing | |
| Fernando Fernán Gómez | Screenplay |
Art | |
| Eduardo Torre de la Fuente | Production Design |
Writing | |
| Leonid Andreyev | Short Story |
| Aleksandr Kuprin | Short Story |
Costume & Make-Up | |
| Carlos Nin | Makeup Designer |
Sound | |
| Manuel Parada | Original Music Composer |
Writing | |
| Francisco Tomás Comes | Screenplay |
Directing | |
| Carmen Salas | Script Supervisor |
| Luis María Delgado | Director |
Production | |
| Ramón Plana | Production Manager |
Directing | |
| José María Ochoa | Assistant Director |
Camera | |
| Rafael Pacheco | Still Photographer |
| Mario Pacheco | Camera Operator |
Editing | |
| Félix Suárez Inclán | Editor |
Production | |
| Carlos Boué | Production Assistant |
Camera | |
| Cecilio Paniagua | Director of Photography |
Sound | |
| Felipe Sáez Barea | Sound |
