Paolo Villaggio
Dr. Jekyll / Mr Hyde
Edwige Fenech
Barbara Wimply
Gianrico Tedeschi
James / Jeeves
Francesco Anniballi
Henchman
Walter Williams
PANTAC Top President
Geoffrey Copleston
Archibald Gold
Angelo Boscariol
PANTAC Board Member (uncredited)
Luciano Foti
Class Member (uncredited)
Alfonso Giganti
Industrialist (uncredited)
Juba Kennerley
Gentleman (uncredited)
Giuseppe Marrocco
PANTAC Board Member (uncredited)
Fulvio Mingozzi
PANTAC Board Member (uncredited)
Alessandro Tedeschi
Professor introducing Jekyll (uncredited)
Luciano Zanussi
PANTAC Board Member (uncredited)
