Onder andere met: Neil Connery (Dr. Neil Connery), Daniela Bianchi (Maya Rafis), Adolfo Celi (Mr. Thai - 'Beta'), Agata Flori (Mildred), Bernard Lee (Commander Cunningham), Anthony Dawson (Alpha), Lois Maxwell (Miss Maxwell), Yachuco Yama (Miss Yashuko), Franco Giacobini (Juan), Ana María Noé (Lotte Krayendorf), Guido Lollobrigida (Kurt), Francesco Tensi (Auctioneer), Enzo Consoli (Sitting Man at Lecture (as Vincenzo Consoli)), Mirella Pamphili