Robert M. Young Director Tom Conti Pope Leo XIV Actor Fernando Rey Cardinal Stefano Biondi Actor Giancarlo Giannini Abalardi Actor Erland Josephson Monsignor Francesco Ghezzi Actor Donald Hewlett Monsignor Colin McGee Actor Edward James Olmos Ciolino Actor Patricia Mauceri Lucia Actor Angelo Evans Giuliano Actor Marta Zoffoli Isabella Actor Guido Alberti Cardinal Augusto Morante Actor Richard Kramer Screenwriter Herbert F. Solow Producer Reynaldo Villalobos Cinematographer Michael Kelly Film Editing Peter Zinner Film Editing William Goldstein Original Music Giovanni Natalucci Production Design Joe Chevalier Set Decoration Vittoria Guaita Costume Design Francesco Cinieri Casting