Left on the doorstep of a monastery as an infant, Marcelino was raised by the monks. He was well-cared for but lonely and missed having a mother. One day he found a special friend in the forbidden attic, hanging on a cross. A friend that would repay Marcelino's kindness by granting him one heart-felt wish.
Pablito Calvo
as Marcelino
Rafael Rivelles
as Padre Superior
Antonio Vico
as Fray Puerta
Juan Calvo
as Fray Papilla
José Marco Davó
as Pascual
José Nieto
as Civil Guard Commander
Fernando Rey
as Monje narrador
Juanjo Menéndez
as Fray Giles
Adriano Domínguez
as Monk
Matilde F. Vilariño
as Marcelino (voice) (uncredited)
Mariano Azaña
as Fray Malo
Joaquín Roa
as Fray Talán
