Directed by
| León Klimovsky | ||
Writing Credits (in alphabetical order)
| José Luis Garci | ||
| Carlos Pumares | ||
| Jaime Salom | ... | (play) |
| Manuel Villegas López | ||
Cast (in credits order)
| Simón Andreu | ... | Juan | |
| Charo Soriano | ... | Petra | |
 |
Ricardo Merino | ... | Mariano |
| María Kosty | ... | Trini (as María Kosti) | |
| Pedro Mari Sánchez | ... | El Nene (as Pedro María Sánchez) | |
| Rafael Hernández | ... | Sopla | |
| José Canalejas | ... | Guzmán | |
|
|
Simón Arriaga | ... | Villalba |
| Adriano Domínguez | ... | Alonso | |
| Antonio Casas | ... | El padre | |
| Rest of cast listed alphabetically: | |||
|
|
Alfredo Enríquez | ||
|
|
Antonio Cintado | ... | Nicolás (uncredited) |
|
|
Javier de Rivera | ... | Amigo de Juan (uncredited) |
Music by
| Carlos Laporta | ||
Cinematography by
| Francisco Fraile | ||
Editing by
| Pablo G. del Amo | ||
Set Decoration by
| José Algueró | ||
Costume Design by
| Mercedes de Segovia | ||
Makeup Department
| Francisca Guillot | ... | hair stylist |
| María Pilar Sese | ... | assistant makeup artist |
| Miguel Sesé | ... | makeup artist |
Production Management
| J.A. Pérez Giner | ... | production manager (as José Antonio Pérez Giner) |
Second Unit Director or Assistant Director
| Carlos Aured | ... | assistant director |
Art Department
| Juan García | ... | settings |
Sound Department
| José María San Mateo | ... | sound editor |
Special Effects by
| José Gómez Soria | ... | special effects |
| Antonio Molina | ... | special effects |
Camera and Electrical Department
| Antonio de Benito | ... | still photographer |
| Fernando Guillot | ... | second assistant camera |
| Miguel Ángel Muñoz | ... | assistant camera |
Editorial Department
| David Raposo | ... | assistant editor |
Additional Crew
| Ramón Escribano | ... | production assistant |
| Erika Szel | ... | shooting secretary |
| Jesús Nieto | ... | voice dubbing (uncredited) |
| Joaquín Vidriales | ... | voice dubbing (uncredited) |
