| Actor | Massimo Serato (as Mr. Nurmi), Carlo Giustini (as Lt. Ken), Franco Nero (as Lt. Jake Jacowitz), Enzo Fiermonte (as General Paul H. Fowler), Umberto Raho (as General Paul Maitland), Vittorio Bonos (as Scientist On Planet Delfos), Aldo Canti (as Gymnasium Victim), Franco Doria (as Shrunken Anton Fryd), Carlo Kechler (as Werner), Rodolfo Lodi (as Claridge), Renato Montalbano (as Detective), Piero Pastore (as Scientist On Planet Delfos), Isarco Ravaioli (as Quarters Sergeant), Franco Ressel (as Lt. Jeffries), Claudio Scarchilli (as Halstead's Pilot), Calisto Calisti (as Dispatcher ( Uncredited )), Aldo D'Ambrosio (as Anton Fryd ( Uncredited )), Lino Desmond (as Schneider ( Uncredited )), Alfonso Giganti (as Control Room Technician ( Uncredited )), Sandro Mondini (as Scientist On Planet Delfos ( Uncredited )), Giuliano Raffaelli (as Francini ( Uncredited )), Archie Savage (as Proteo Theater Performer ( Uncredited )), Goffredo Unger (as Charles De Lauty ( Uncredited )), Michel Lemoine (as Uncredited) |
| Actress | Margherita Horowitz (as Mrs. Fowler), Moa Tahi (as Abductor Chief), Victoria Zinny (as Vicky Halstead), Kitty Swan (as Abudctor Agent ( Uncredited )) |
| Assistant | Ruggero Deodato (as Assistant Director), Nino Fruscella (as 2nd Assistant Director) |
| Associate Producer | Walter Manley, Ivan Reiner |
| Creator | Berenice Sparano (as Costume Design), Euclide Santoli (as Make-up) |
| Director | Antonio Margheriti |
| Director Of Photography | Riccardo Pallottini |
| Film Editor | Otello Colangeli |
| Music | Angelo Francesco Lavagnino |
| Producer | Joseph Fryd, Antonio Margheriti |
| Production Company | Mercury Film International, Southern Cross Feature Film Company |
| Production Designer | Piero Poletto |
| Screenplay | Ivan Reiner, Renato Moretti |
| Sound | Vittorio Massi |
| Starring | Tony Russel (as Cmdr. Mike Halstead), Lisa Gastoni (as Lt. Connie Gomez) |
| Subject | Ivan Reiner, Renato Moretti |
| Links | https://www.davinotti.com |
