Antonio Gradoli

as Doctor

as Donovan

as Major Metternich

as Ferguson

as Pedro

as Braddock

as Carson, Silvertown Sheriff (uncredited)

as Von Klausen

as Commissioner Sebastian

as Monte Carlo inspector

as Pavlos (as Anthony Gradwell)

as Gordon's boss (as Anthony Gradwell)

as Brack

as Yussef (as Anthony Gradwell)

as Lester (as Anthony Gradwell)

as Captain Moran

as Captain Hull

as Castoro

as Padre Montecchi

as L'Oste

as Alcalde Hopkins

as Maresciallo dei Carabinieri Marciano

as Ten. Carrabinieri

as Il tenente dei carabinieri (uncredited)

as Il fratello di Margaret

as Morris, first officer

as Domenico