Terence Stamp
Padre Andreani, poi Papa Giovanni Clemente I
Fabrizio Bentivoglio
Padre Bruno Martello
Paula Molina
Nina
Gabriele Ferzetti
Cardinale Ixaguirre
José Luis López Vázquez
Don Perrone
Antonio Marsina
Vittorio
Adriano Amidei Migliano
Dottore
Eduardo Fajardo
Rettore
Frank Nuyen
Cardinal (uncredited)
Marcello Aliprandi
Director
Antonio Siciliano
Editor
Alberto Fioretti
Screenplay
Marcello Aliprandi
Screenplay
Enzo Gallo
Screenplay
Pino Donaggio
Original Music Composer
Lucio Battistrada
Screenplay
Elio Micheli
Art Direction
Alejandro Ulloa
Director of Photography
Pedro Mario Herrero
Screenplay
Enzo Gallo
Producer
Max Savigny
Screenstory
Maurice Serral
Screenstory
Antonio de Miguel
Art Designer
Davide Bassan
Set Decoration