Mi campeón

Catita is a simple and poor woman who dreams of that her son stands out on something important to help her out of his humble. But she opposes to him being boxer, therefore constantly fighting with her husband.

Niní Marshall

(Doña Lupe; Cándida (as Nini Marshal))

Joaquín Pardavé

(Don Choforito Moreno)

Fernando Fernández

(Luis)

Rosita Arenas

(Rosita)

Beatriz Aguirre

(Doña Rosa Morfín Valenzuela)

Miguel Arenas

(Don Ramiro)

Pepe del Río

(Nacho (as José del Río))

Wolf Ruvinskis

(Pablo Rivas)

Libertad Lamarque

(Cantante)

Germán Valdés

(Tin Tan)

Marcelo Chávez

(Marcelo)

Agustín Lara

(Agustín)

Gloria Mestre

(Bailarina)

Lina Salomé

(Bailarina)

Armando Acosta

(Espectador del boxeo (uncredited))

Jesús Gómez

(Espectador del boxeo (uncredited))

Carlos Robles Gil

(Espectador del boxeo (uncredited))

Jaime Fernández

(Espectador del fútbol americano (uncredited))

Miguel Ángel López

(Espectador del fútbol americano (uncredited))

Joaquín Roche

(Espectador de la pelea del Choforito (uncredited))

José Muñoz

(Espectador (uncredited))

Gregorio Acosta

(Grandote en pelea del choforito (uncredited))

Eduardo Alcaraz

(Señor Maccini (uncredited))

Daniel Arroyo

(Invitado a fiesta (uncredited))

Lupe Carriles

(Invitada a fiesta (uncredited))

Cecilia Leger

(Invitada a fiesta (uncredited))

Velia Lupercio

(Invitada a fiesta (uncredited))

José Pardavé

(Invitado a fiesta (uncredited))

Humberto Rodríguez

(Invitado a fiesta (uncredited))

María Valdealde

(Invitada a fiesta (uncredited))

Hernán Vera

(Invitado a fiesta (uncredited))

Stephen Berne

(Entrenador (uncredited))

Maria Luisa Cortés

(La murcielaga (uncredited))

Pascual García Peña

(Asistente del Choforito (uncredited))

Conchita Gentil Arcos

(Empleada de doña Lupe (uncredited))

Álvaro Matute

(Chofer (uncredited))

José Luis Moreno

(Niño (uncredited))

Antonio «Pícoro» Padilla

(Anunciador (uncredited))

Julio Sotelo

(Anunciador (uncredited))

Salvador Quiroz

(Doctor (uncredited))