as Flavio de Nerestra

as Manuel de Haviland

as L'arciduca Cirillo

as Rodolfo Meseri

as Leone Squassi

as Antonio

as Un altro scienziato

as L'ingegner Zanni

as Ilario

as Il gioielliere

as Leopoldo Morache

as Signore Piccirillo

as Conte Amedeo

as Sablonscky

as Barof, redattore mondano

as Zoffoli

as Il barista

as Dottore Enrico Sarti

as Demetrio, il maggiordomo

as Il commandante Baldi (uncredited)

as Barone Kapperdof

as Schröder

as duca di Parma

as Il marchese Enrico Poli di Torrebruciata

as Il regista Riva

as Direttore della Stazione Radio