Nadia Cassini as Grazia Mancini

Lino Banfi as Prof. Amedeo La Russa

Paolo Giusti as Prof. Santarelli

Karin Schubert as Eva

Elio Zamuto as John

Carlo Sposito as Madman

Renato Cortesi as Ugolini

Alvaro Vitali as Peppino De Tappis

Nieves Navarro as Veronica La Russa

Marcello Martana as Moretti

Gino Pagnani as Ottavio

Ermelinda De Felice as Sister Fulgenzia

Enzo Andronico as Cavalier Galeazzo Gedeoni

Carmen Russo as Model

Jimmy il Fenomeno as The guardian of the clinic

Luigi Uzzo as Gustavo

Vittoria Di Silverio as The mad patient

Lucio Montanaro as Gianmaria, the vintner

Valentino Simeoni as The bothered bather

Fulvio Mingozzi as The captain of the carabinieri