as Joe
as himself(1 ep)
as Ispettore John Clay(5 eps)
as Harry Brent(6 eps)
as Tancredi
as Doc
as L'ingegnere
as Commissioner Ferretti
as Duca di Urbino
as Frank Smith, agent 006
as Octavian
as Count Sigfrido di Treviri
as Escinio
as Dr. Andrew Manson(7 eps)
as D'Artagnan
as Magri
as Miguel
as Baron Rudolf Keller
as Ufficiale (uncredited)
as Paolino
as Alberto
as Andrea Paresi
as Giudice
as voiceover
as Maurizio
as Gianni
as Giulio Torelli
as Pentheus
as Chirone
as Prof. Alberto Levin
as Milziade
as Radiotelegrafista
as Aronne
as Mauri