Gino Cervi as Cardinale Lambertini

Nadia Gray as Gabriella di Roccasibalda

Carlo Romano as Goffredo di Roccasibalda

Arnoldo Foà as Duca di Montimar

Sergio Tofano as Canonico Peggi

Virna Lisi as Maria di Roccasibalda

Tino Buazzelli as Conte Davia

Gianni Agus as Conte Pepoli

Agnese Dubbini as La tata

Mario Mazza as Anastasio

Aldo Fiorelli as Padre Cavalcanti

Loris Gizzi as Conte Orsi

Paolo Carlini as Carlo Barozzi

Tullio Altamura as Don Tinti

Ignazio Balsamo as Il sergente

Rita Glori as La marchesa Gozzadini

Gualtiero Isnenghi as Il conte Aldovrandi

Armando Migliari as Il dottore

Emilio Petacci as Costanzo

Alfredo Salvatori as Don Girolamo

Mario Siletti as Il maggiordomo

Piero Pastore as Il messo papale