Alfonso Balcázar Director, Screenwriter George Martin Gary Actor Vivi Bach Monica Actor Klausjürgen Wussow Klaus Actor Daniele Vargas Electra 1 Actor Rosalba Neri Silvana Actor Michael Montfort Bill Actor Ignazio Leone Ivan Actor Georges Chamarat Prof. Roland Actor Maria Badmayew Madame van Hallen Actor Hans Waldherr Klaus' Henchman Actor Robert Party Colonel Randolph Actor Gerard Landry The Commissioner Actor Lorenzo Robledo Electra Agent Actor José Antonio de la Loma Screenwriter Giovanni Simonelli Screenwriter Claude Bolling Music Víctor Monreal Cinematographer