as Duca di Urbino
as Prof. Alberto Levin
as Ufficiale (uncredited)
as Andrea Paresi
as Pentheus
as Baron Rudolf Keller
as Doc
as Joe
as Magri
as Octavian
as Frank Smith, agent 006
as Chirone
as Escinio
as Miguel
as Aronne
as Milziade
as Giulio Torelli
as Radiotelegrafista
as Ayak
as Tancredi
as Paolino
as L'ingegnere
as Alberto
as Giudice
as Commissioner Ferretti
as Mauri
as Gianni
as Maurizio
as Count Sigfrido di Treviri
as Harry Brent
as himself
as Dr. Andrew Manson
as Ispettore John Clay
