Vittorio Gassman

as Principe Vincenzo Gonzaga

Virna Lisi

as Giulia

Philippe Leroy

as Ippolito

Vittorio Caprioli

as Marchese Liginio

Maria Grazia Buccella

as Marchesa Clelia di Pepara

Alfredo Bianchini

as cavalier Vinta

Paola Borboni

as Madonna Violante

Giusi Raspani Dandolo

as Francesca Gonzaga

Jacques Herlin

as dott. Lulli

Claudie Lange

as Marfisia

Luciano Mondolfo

as Cardinale Farnese

Francesco Mulè

as un medico dei Gonzaga

Esmeralda Ruspoli

as Bianca De' Medici

Mario Scaccia

as Cardinale Gonzaga

Leopoldo Trieste

as Marchese di Pepara

José Luis de Vilallonga

as Francesco De' Medici

Anna Maria Guarnieri

as Margherita Farnese

Tino Buazzelli

as Duca di Mantova