Lory Del Santo as Andrea

Michela Miti as Marisa Patacchiola

Riccardo Billi as Nonno

Dagmar Lassander as Serena Patacchiola

Bombolo as dott. Filippo Patacchiola

Fabio Grossi as Paolo Patacchiola

Victor Cavallo as imbianchino

Franco Bracardi as barbone

Giovanni Attanasio as portinaio

Sergio Di Pinto as barista

Enio Drovandi as tassista

Anna Fall as Domenica

Carmine Faraco as amico di Marisa

Vito Fornari as uomo che deruba Andrea

Carlo Marini as Michele

Bobby Rhodes as amante di Domenica

Alfredo Adami as paziente con 18 figli

Enzo Andronico as esibizionista

Antonella Antinori as donna sadica in albergo (as Antonella Angelucci)

Ennio Antonelli as primo controllore

Alessandra Canale as ragazza bionda nell'istituto dietetico (as Sandra Canale)

Simonetta Carosi as paziente

Adriana Giuffrè as moglie di un paziente

Franco Laitano as

Martufello as impiegato comunale

Giulio Massimini as portiere Mario

Gina Poli as

Moana Pozzi as ragazza in treno senza biglietto (as Anna Moana Pozzi)

Antonella Prati as paziente muta

Alessandra Tani as

Italo Vegliante as uomo con il tic al cinema

Angelo Pellegrino as professore (uncredited)

Maurizio Mattioli as secondo controllore (uncredited)

Jimmy il Fenomeno as passante (uncredited)

Lina Franchi as moglie del passante (uncredited)