Cesare Barbetti

as Tiberio (voce)

as Il dottore (voice)

as Avvocato Nitti

as Michele Fiorenza

as Le directeur des répétitions de Guglielmo

as Lele Costanzi

as De Bosis

as Mario Franchi

as Padre di Dario

as Preside

as Dr. Meyer

as Cesare Rossi

as Volusiano

as Paul Cooper

as (Voice dubbing for Aldo Bufi Landi)

as Lucio

as Brunello

as Peppino

as Marco Ansaldi

as (as Cesarino Barbetti)

as Mozart da Bambino

as Il figlio del governatore

as bambino