Totò

as Il Professore

Pablito Calvo

as Marcellino

Memmo Carotenuto

as Zeffirino

Jone Salinas

as Ardea

Fanfulla

as Alvaro Merini, il vero zio di Marcellino

Wandisa Guida

as la maestra

Nanda Primavera

as la portinaia Rosina

Amelia Perrella

as sora Amalia

Marianna Leibl

as la contessa

Renato Terra