Neri Marcorè as Papa Luciani

José María Blanco as Card. Jean-Marie Villot

Paolo Romano as Don Diego Lorenzi

Franco Interlenghi as Mons. Agostino Casaroli

Imma Colomer Marcet as Suor Lúcia dos Santos

Giorgia Bongianni as Bortola Luciani

Alberto Scala as Berto

Mario Opinato as Operaio Mario

Alberto Di Stasio as Mons. Gioacchino Muccin

Gabriele Ferzetti as Card. Giuseppe Siri

Roberto Citran as Luigi Tiezzi

Jacques Sernas as Mons. Paul Marcinkus

Sergio Fiorentini as Padre Gruber

Giuseppe Antignati as Card. Karol Wojtyła

Emilio De Marchi as M Mons. Girolamo Bartolomeo Bortignon

Daniele Griggio as Partigiano Mazzola

Stefano Fregni as Partigiano

Romuald Kłos as Medico polacco

Sergio Savastano as Sindacalista

Franco Moscon as Cardinale

Dario Penne as

Robert Madison as

Augusto Zucchi as