Vittorio Gassman as Furio Bertuccia

Pamela Tiffin as Gloria Bianchi

Adolfo Celi as Marco Tarocchi Roda

Irina Demick as Signora Tarocchi Roda

Corrado Olmi as Commissario Monteforte

Tom Felleghy as Fabris

Carlo Delle Piane as Ninetto

Carlo Pisacane as Barbone / Homeless

Laura Antonelli as Elena (uncredited)

Jacques Stany as Professor Crescenzi

Pippo Starnazza as Janitor

Mario De Rosa as Butler

Aldo De Carellis as Judge

Graziella Polesinanti as Second Nurse

Carlo Baccarini as

Juan Valejo as

Antonio Guidi as

Giuseppe Terranova as

Paolo Prestano as

Augusto Soprani as

Gianni Pulone as

Gioia Desideri as First Nurse

Alfonso Giganti as Waiter at the restaurant (uncredited)