- Abdo Apanai
- Â Q Scientist (1968) (as Abd Apanai)
- Robert Bain
- Â FBI Economic Investigator (1968)
- Fred Bossart
- Â Van Manuel Perez (1968) (as Michael Bossart)
- Pierre Caramelo
- Â (1968) (as Pierre Karamero)
- Harold Conway
- Â Q Commander L. (1968)
- Mike Danning
- Â Boss Of The Pack (1968)
- Jacques Enghien
- Â Heinz (1968)
- Luigi Fidanza
- Â (1968)
- Franz Gruber
- Â Dr. Tachibana's son Fritz (1968)
- Hans Horneff
- Â (1968)
- Sam Howard
- Â Responsible for Q (1968)
- Yoshio Katsube
- Â Hotel Desk Clerk
- Salam Khan
- Â (1968)
- Eisaburo Komatsu
- Â Security Guard (Q's Spy)
- Bruno Lucique
- Â Schulz (1968) (as Bruno Luluque)
- Hiroshi Minami
- Â (1968)
- Kenji Nagisa
- Â (1968)
- Masaya Nihei
- Â (1968)
- Ranfan Ou
- Â Secretary (1968)
- Celia Paul
- Â (1968)
- Kazuo Suzuki
- Â Q Villian
- Masaaki Tachibana
- Â Guest House Security Guard / ...
- Peter Williams
- Â Joseph Mengel (1968)
- Osman Yusuf
- Â Dr. Adams (1968)
- Ulf Ôtsuki
- Â Q Commander(1968)
- Enver Altenbay
- Â Policeman / ... (uncredited)
