Alberto Sordi as Giacinto Colonna

Cochi Ponzoni as Prof. Ottavio Caramessa

Florinda Bolkan as Loredana Davoli

Claudia Cardinale as Armida Ballarin

Philippe Noiret as Giuseppe Costanzo

Dagmar Lassander as Ingrid Streissberg

Rossana Di Lorenzo as Erminia Colonna

Pino Colizzi as Tiziano Ballarin

Silvia Dionisio as Orchidea

Renzo Marignano as 'Lady Chatterley' Director

Giacomo Furia as Lattanzi

Gisela Hahn as Ursula Kerr

Horst Weinert as Hotel director

Gianni Baghino as la comparsa vestito da Pope

Giò Stajano as Photography studio director (uncredited)

Giulio Cesare Castello as Critical (uncredited)

Ugo Gregoretti as Critical (uncredited)

Marina Cicogna as Consultant (uncredited)

Manfred Freyberger as Fritz (uncredited)

David Warbeck as Lady Chatterley's Lover (uncredited)

Franca Scagnetti as Restaurant waitress (uncredited)

Jimmy il Fenomeno as Self (uncredited)

Armando Brancia as (uncredited)

Enrico Marciani as Jolly Director (uncredited)

Macha Magall as Countess (uncredited)

Antonia Dauria as Costumes assistant (uncredited)

Frank Nuyen as Asian movie distributor (uncredited)

Augusta Di Vincenzi as Woman at cinema (uncredited)