Filmmakers: Mario Bava - Director / Writer (original version), Alberto Bevilacqua - Writer (original version), Callisto Cosulich - Writer (original version), Louis M. Heyward - Writer (English language version), Ib Melchior - Writer (English language version), Renato Pestriniero - Writer (story "One Night of 21 Hours"), Antonio Román - Writer (original version), Rafael J. Salvia - Writer (original version), Fulvio Lucisano - Producer, Antonio Pérez Olea - Cinematographer, Antonio Rinaldi - Cinematographer, Gino Marinuzzi Jr. - Composer, Romana Fortini - Editor, Antonio Gimeno - Editor more »