Cantinflas
Salvador Medina / Chava
Cantinflas
Salvador Medina / Chava
Marta Romero
Laura Villanueva
Miguel Ángel Álvarez
Dr. Miguel Villanueva
Prudencia Grifell
Señora Martínez
Wolf Ruvinskis
Papá de Beto
Guillermo Zetina
Dr. Marín
Tony Carbajal
Dr. Pablo Montero
Pepito Velázquez
Beto
Carlos Riquelme
Administrador del hospital
Rosa Elena Durgel
Mamá de Beto
Alberto Catalá
Paciente ambidextro
Consuelo Monteagudo
Suegra de neurótica
José Chávez
Isidro Martínez
Paz Villegas
Paciente viejita coqueta
Ada Carrasco
Doña Lola
Arturo Castro 'Bigotón'
Comisario del pueblo
Guillermo Bravo Sosa
Paciente malnutrido (uncredited)
Margarita Delgado
Enfermera (uncredited)
Pedro Elviro
Paciente con television (uncredited)
Carmelita González
Paciente neurótica (uncredited)
Ramón Valdés
Paciente vendado (uncredited)
Alejandro Suárez
Hippie en cantina (uncredited)
Alfonso Zayas
Hippie en cantina (uncredited)
Jorge Zamora
Hombre en cantina (uncredited)
Miguel M. Delgado
Director
Rosalío Solano
Director of Photography
Fernando Galiana
Writer
Jacques Gelman
Producer
Bertha Chiu
Hairstylist
Galdino R. Samperio
Sound Re-Recording Mixer
Constanza Hool
Choreographer
James L. Fields
Sound
Fidel Pizarro
Production Manager
Manuel Fontanals
Production Design
Gonzalo Gavira
Sound Effects
Javier Mateos
Sound Recordist
Luis Gaytán
Script Supervisor
Miguel M. Delgado
Screenplay
Jorge Busto
Editor
Ana Guerrero
Makeup Artist
Américo Fernández
Assistant Director
Carlos León
Additional Writing
Raúl Lavista
Original Music Composer
Raúl Portillo
Sound Editor