Cast
Alfonso Giganti
Industrialist (uncredited)
Giuseppe Marrocco
PANTAC Board Member (uncredited)
Alessandro Tedeschi
Professor introducing Jekyll (uncredited)
Luciano Zanussi
PANTAC Board Member (uncredited)
Paolo Villaggio
Dr. Jekyll / Mr Hyde
Gianrico Tedeschi
James / Jeeves
Gordon Mitchell
Pretorius
Francesco Anniballi
Henchman
Angelo Boscariol
PANTAC Board Member (uncredited)
Fulvio Mingozzi
PANTAC Board Member (uncredited)
Paolo Paoloni
Professor
Eolo Capritti
Henchman
Clemente Ukmar
Henchman
Geoffrey Copleston
Archibald Gold
Luciano Foti
Class Member (uncredited)
Edwige Fenech
Barbara Wimply
Guerrino Crivello
Student