El analfabeto
Inocencio Prieto y Calvo receives a letter telling him he is the heir to his uncle's fortune of two million pesos. Not being able to read he has no idea of who sent the letter or its content. So he goes to the drugstore because the pharmacist can read the letter to him. But while waiting to be helped he sees that a young girl can read. He figures he has to be able to discover the letter's content by himself and decides he will save the letter and go to school, and wait to read the letter on his own.
Cantinflas
Inocencio Prieto y Calvo
Lilia Prado
Blanca Morales
Sara García
Doña Epifanita
Ángel Garasa
Don Romulo González
Miguel Manzano
Don Fermín
Carlos Agostí
Licenciado Aníbal Guzmán
María Teresa Rivas
Refugio González
Daniel Herrera
El Poca Luz
Fernando Soto
'El Sapo'
Guillermo Orea
Comisario
Óscar Ortiz de Pinedo
Jesús López, notario público
Carlos Martínez Baena
Profesor
Judy Ponte
Ofelia González
Luis Manuel Pelayo
Ministerio Público
Lidia Franco
Doña Chona
León Barroso
Empleado del banco
Armando Arriola
Asistente de Notario
Palmira Arzubide
Mamá de Lupita
Alberto Catalá
El Güero
Manuel Alvarado
Don Leoncio
José Peña
Don Diego, boticario
Margarita Villegas
(uncredited)
Alicia Moreno
(uncredited)
Salvador Terroba
(uncredited)
Armando Acosta
Carpintero (uncredited)
Jorge Casanova
Empleado del banco (uncredited)
José Chávez
Asaltante (uncredited)
Gerardo del Castillo
Asaltante (uncredited)
Pedro Elviro
Alguacil (uncredited)
Enrique García Álvarez
Sacerdote (uncredited)
Roberto Meyer
Gutierritos (uncredited)
José Pardavé
Gorgonio (uncredited)
Francisco Reiguera
Juez (uncredited)