Ugo Tognazzi
— Stefano
Ilaria Occhini
— Daniela
Margrete Robsahm
— Carla
Marisa Merlini
— Amalia
Mario Carotenuto
— Count Gaetano
Franco Giacobini
— commissario
Mario Castellani
— marito di Amalia
Raimondo Vianello
— (uncredited)
Anna Manduchi
— Nurse (uncredited)
Pinuccia Nava
— prostituta romana
Gianni Musy
— Nando Marcellini
Olimpia Cavalli
— Claretta
Renato Mambor
— Raffa
Franco Ciuchini
— Tripoli
Aldo Berti
— Righetto
Franco Ressel
— René
Armando Bandini
— ragionier Bandini
Consalvo Dell'Arti
— vice commissario Donati
Franco Moruzzi
Nino Nini
Arrigo Peri
Myriam Pisani
