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