 CantinflasSalvador Medina / Chava | Salvador Medina / Chava |
 Marta RomeroLaura Villanueva | Laura Villanueva |
 Miguel Ángel ÁlvarezDr. Miguel Villanueva | Dr. Miguel Villanueva |
 Prudencia GrifellSeñora Martínez | Señora Martínez |
 Wolf RuvinskisPapá de Beto | Papá de Beto |
 Guillermo ZetinaDr. Marín | Dr. Marín |
 Tony CarbajalDr. Pablo Montero | Dr. Pablo Montero |
| PPepito VelázquezBeto | Beto |
 Carlos RiquelmeAdministrador del hospital | Administrador del hospital |
 Rosa Elena DurgelMamá de Beto | Mamá de Beto |
 Alberto CataláPaciente ambidextro | Paciente ambidextro |
| CConsuelo MonteagudoSuegra de neurótica | Suegra de neurótica |
 José ChávezIsidro Martínez | Isidro Martínez |
| PPaz VillegasPaciente viejita coqueta | Paciente viejita coqueta |
 Ada CarrascoDoña Lola | Doña Lola |
 Arturo Castro 'Bigotón'Comisario del pueblo | Comisario del pueblo |
 Guillermo Bravo SosaPaciente malnutrido (uncredited) | Paciente malnutrido (uncredited) |
| MMargarita DelgadoEnfermera (uncredited) | Enfermera (uncredited) |
 Pedro ElviroPaciente con television (uncredited) | Paciente con television (uncredited) |
 Carmelita GonzálezPaciente neurótica (uncredited) | Paciente neurótica (uncredited) |
 Ramón ValdésPaciente vendado (uncredited) | Paciente vendado (uncredited) |
 Alejandro SuárezHippie en cantina (uncredited) | Hippie en cantina (uncredited) |
 Alfonso ZayasHippie en cantina (uncredited) | Hippie en cantina (uncredited) |
 Jorge ZamoraHombre en cantina (uncredited) | Hombre en cantina (uncredited) |
