Cast
- 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