Enrico Maria Salerno as Enrico Marletti

Sandra Milo as Giuliana Marletti

Daniela Bianchi as Isabella Dominici

Leopoldo Trieste as Professor Ferri

Jean Sorel as Sergio

Lelio Luttazzi as Conte Antonio Bellanca

Raffaele Pisu as Pasqualino

Ana Castor as Signora Pellini

Helga Liné as Pucci

Trini Alonso as Clelia Valdameri

Alicia Brandet as Inge

José Calvo as Commendator Tagliaferri

Pedro Rodríguez de Quevedo as Gustavo Valdameri

Véronique Vendell as L'altra Giuliana

Antonella Della Porta as Signora De Rossi

Mirella Maravidi as The Girl kissing Enrico to pay a forfeit

Renato Terra as Giovanni - The Valet