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