Cast & crew
El gran secreto (1980)
Directed by Pedro Mario Herrero Written by Pedro Mario Herrero
Cast
| Álvaro de Luna | Camionero |
| Francisco Rabal | Domingo |
| Francisco Piquer | |
| Miguel del Castillo | |
| Emilio Linder | |
| Emilio Fornet | Nicolás Aguilera |
| Lola Lemos | |
| María Luisa San José | María Álvarez |
| Carlos Muñoz Arosa | Don |
| Emilio Gutiérrez Caba | Paco |
| Eduardo López | Juanín |
| Charo López | Prostituta |
| Alfonso Castizo | |
| Manuel Zarzo | Alcalde |
| José Luis López Vázquez | Sebastián |
| Emilio Fornet | |
| María Asquerino | Dolores |
| África Pratt | Mónica Molnar |
| Elena Ajenjo | Patricia Franchini |
Crew
| José Luis Barbero | Script Supervisor |
| Enrique Bello | Electrician |
| Eduardo Noé | Cinematography |
| Lucio Cortés | Assistant Editor |
| Claudio García | Assistant Editor |
| Julio Arribas | Property Master |
| Eduardo Noé | Camera Operator |
| José Ramos Paíno | Assistant Director |
| Antonio Cortés | Art Direction |
| Julián Ruiz | Makeup Artist |
| Francisco Peramos | Sound Recordist |
| Valentín Panero | Producer |
| Ángel Arteaga | Music |
| Rosalía Bautista | Music |
| Rafael García Martos | Gaffer |
| Alfredo Díaz | Electrician |
| José Panero | Producer |
| José Luis Matesanz | Editor |
| Pedro Mario Herrero | Writer |
| Vicenta Palmero | Hairstylist |
| Pedro Mario Herrero | Director |
| Rafael Castro | Electrician |
| José Antonio Villalba | Electrician |