The simple life and the values of loyalty and solidarity of the poor people in the environment of professional boxing, is the plot of this film, where Pepe el Toro shows the effort and tragedies that are experienced in this profession.
| Directing | Ismael Rodríguez | Director |
| Writing | Pedro de Urdimalas | Characters |
| Writing | Carlos Orellana | Screenplay |
| Writing | Ismael Rodríguez | Screenplay |
| Camera | Ignacio Torres | Director of Photography |
| Art | José Rodríguez Granada | Production Design |
| Camera | Jorge Pezet | First Assistant Camera |
| Production | Joaquín Garrido | Casting |
| Sound | James L. Fields | Sound Director |
| Production | Antonio Guerrero Tello | Production Director |
| Production | Pascual Aragonés | Production Manager |
| Sound | Francisco Alcayde | Sound Recordist |
| Costume & Make-Up | Josefina Cárdenas | Hairstylist |
| Camera | Teodoro García | First Assistant Camera |
| Camera | Andrés Torres | Camera Operator |
| Sound | Galdino R. Samperio | Sound Re-Recording Mixer |
| Directing | Icaro Cisneros | Script Supervisor |
| Costume & Make-Up | Román Juárez | Makeup Artist |
| Directing | Jorge López Portillo | Assistant Director |
| Crew | Jorge Benavides | Special Effects |
| Camera | Alvaro Gonzalez | Camera Operator |
| Sound | Felipe Bermejo | Songs |
| Sound | Manuel Esperón | Original Music Composer |
| Editing | Fernando Martínez | Editor |
