| Actor | Tony Russel (as Cmdr. Mike Halstead (as Tony Russell)), Massimo Serato (as Mr. Nurmi), Carlo Giustini (as Lt. Ken (as Charles Justin)), Franco Nero (as Lt. Jake Jacowitz), Enzo Fiermonte (as General Fowler), Umberto Raho (as General Maitland (as Bert Raho)), Vittorio Bonos (as Undetermined role (as Victor Bonos)), Aldo Canti (as Gymnasium Victim (as Aldo Kant)), Franco Doria (as Anton Fryd, as a dwarf (as Frank Doris)), Carlo Kechler (as Werner (as Karl Mechler)), Rodolfo Lodi (as Claridge (as Rudolph Lodin)), Renato Montalbano (as Detective), Piero Pastore (as Scientist on Planet Delfos (as Peter Pastor)) |
