Cantinflas as Cantinflas

Silvia Pinal as Rosita

Carlos Martínez Baena as Don Sebastian, el profe

Óscar Pulido as Elpidio

Fernando Casanova as Raúl

José Baviera as Dr. Perfecto Lozano

Josefina del Mar as La vecina bailarina

Conchita Gentil Arcos as Doña Cuca, vecina

Pepe Martínez as Profesor examinador

Pedro Elviro as Don Fortino

Ricardo Adalid as Amigo de Raúl en fiesta (uncredited)

Felipe de Flores as Amigo de Raúl en fiesta (uncredited)

Stephen Berne as Masajista (uncredited)

Victorio Blanco as Hombre en velorio (uncredited)

Rodolfo Calvo as Hombre en velorio (uncredited)

Carmen Cabrera as Miembra del patronato (uncredited)

María Valdealde as Miembra del patronato (uncredited)

Paco Martínez as Miembro del patronato (uncredited)

Félix Samper as Miembro del patronato (uncredited)

Jaime Calpe as Estudiante inteligente (uncredited)

José Luis Moreno as Estudiante (uncredited)

Ismael Pérez 'Poncianito' as Estudiante (uncredited)

Jorge Pérez as Estudiante (uncredited)

Lupe Carriles as Vecina chismosa (uncredited)

María Gentil Arcos as Vecina chismosa (uncredited)

Lupe del Castillo as Vecina (uncredited)

Regino Herrera as Vecino (uncredited)

Enrique Carrillo as El tarzán, vecino pachuco (uncredited)

Jorge Chesterking as John, amigo de Perfecto (uncredited)

Edmundo Espino as Esposo de Guadalupe (uncredited)

Elodia Hernández as Doña Guadalupe (uncredited)

Rafael Icardo as Secretario (uncredited)

José Pardavé as Lechero (uncredited)

Salvador Quiroz as Empleado carrera caballos (uncredited)

Humberto Rodríguez as Empleado secretaria (uncredited)

Jaime Jiménez Pons as Estudiante (uncredited)