"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
as Doña Lupe; Cándida (as Nini Marshal)
Joaquín Pardavé
as Don Choforito Moreno
Fernando Fernández
as Luis
Rosita Arenas
as Rosita
Beatriz Aguirre
as Doña Rosa Morfín Valenzuela
Miguel Arenas
as Don Ramiro
Pepe del Río
as Nacho (as José del Río)
Wolf Ruvinskis
as Pablo Rivas
Libertad Lamarque
as Cantante
Germán Valdés
as Tin Tan
Marcelo Chávez
as Marcelo
Agustín Lara
as Agustín
Gloria Mestre
as Bailarina
Lina Salomé
Armando Acosta
as Espectador del boxeo (uncredited)
Jesús Gómez
Carlos Robles Gil
Jaime Fernández
as Espectador del fútbol americano (uncredited)
Miguel Ángel López
Joaquín Roche
as Espectador de la pelea del Choforito (uncredited)
José Muñoz
as Espectador (uncredited)
Gregorio Acosta
as Grandote en pelea del choforito (uncredited)
Eduardo Alcaraz
as Señor Maccini (uncredited)
Daniel Arroyo
as Invitado a fiesta (uncredited)
Lupe Carriles
as Invitada a fiesta (uncredited)
Cecilia Leger
Velia Lupercio
José Pardavé
Humberto Rodríguez
María Valdealde
Hernán Vera
Stephen Berne
as Entrenador (uncredited)
Maria Luisa Cortés
as La murcielaga (uncredited)
Pascual García Peña
as Asistente del Choforito (uncredited)
Conchita Gentil Arcos
as Empleada de doña Lupe (uncredited)
Álvaro Matute
as Chofer (uncredited)
José Luis Moreno
as Niño (uncredited)
Antonio «Pícoro» Padilla
as Anunciador (uncredited)
Julio Sotelo
Salvador Quiroz
as Doctor (uncredited)
Jorge Fernández
Art Direction
Chano Urueta
Director
Gregorio Walerstein
Producer
Sergio Guerrero
Original Music Composer
Agustín Martínez Solares
Director of Photography
Rafael Ceballos
Editor
Benjamin de León
Casting
Adaptation
Story
Margarita Ortega
Makeup Artist
María E. Salazar
Hairstylist
Jacobo Derechín
Production Manager
Manuel Muñoz 'Torito'
Assistant Director
Pedro Gallo
Painter
Rodolfo Benítez
Sound Recordist
Abraham Cruz
Sound Effects
Jesús González Gancy
Sound Re-Recording Mixer
José Antonio Carrasco
Camera Operator
Juan Durán
Lighting Technician
Consuelo Mújica
Wardrobe Supervisor
Lupita Marino
Negative Cutter
Eufemio Rivera
Assistant Editor
Nicolás Rueda Jr.
Title Graphics
Óscar Lepe
Projection