Giancarlo Giannini
Dario
Massimo Girotti
Alex
Susan Strasberg
Martha
Attilio Dottesio
Party Guest
Nathalie Delon
Diana
Lars Bloch
Martha's Lover
Filippo Perego
Party Guest (uncredited)
Alfonso Giganti
Diana's Driver (uncredited)
Rossana Canghiari
Train Passenger (uncredited)