Onder andere met: Manuel Gélin (Robert Blabert), France Lomay (Erika (as France Jordan)), Jeff Montgomery (Ben), Myriam Landson (Kurt's Wife), Eric Viellard (Ronald (as Eric Saint-Just)), Caroline Audret (Sylvie), Henri Lambert (Kurt (as Henry Lambert)), Miguel Ángel Aristu (Ahmed (uncredited)), Albino Graziani (Prof. Konrad Deniken (uncredited)), Javier Maiza (Robert's Father (uncredited)), Antonio Mayans (The Sheik (uncredited)), Doris Regina (Aisha (uncredited))