Arthur
The Prime Minister
Colonel Lukyn
Dr. Andrei Smyslov
Doctor Knock
Fred Midway
François-Marie Aroue / Voltaire
Co-Ordinator Ugo Priest
Frank Harris
Captain Quin
Sowerberry
Fred Tomlinson
Nikolai Krobnevsky
Quinlan
Johnny Spooner
Welsh Hughie
Rigsby
Sergeant Rolfe
Commander von Bonin
Vincent Potter
McCoy
Persian Soldier Who Falls On Sword (uncredited)
Dr. Wallis
Whymper