Sergio Dow Director, Screenwriter, Executive Producer Richard Armitage Quart Actor Amaia Salamanca Macarena Bruner Actor Paul Guilfoyle Monseñor Paolo Spada Actor Paul Freeman Padre Príamo Ferro Actor Rodolfo Sancho Pencho Gavira Actor Fionnula Flanagan Duquesa Cruz Bruner Actor Franco Nero El Papa Actor Alicia Borrachero Gris Marsala Actor Joe Manjón Padre Geek Actor William Keen Arzobispo Corvo Actor Carlos Cuevas Padre Cooey Actor Unax Ugalde Padre Arregui Actor Jorge Sanz Fazil Actor Peter Vives Padre Óscar Lobato Actor Rubén Carballés El Potro Actor Enrique Cerezo Producer Rich Cowan Producer Pierfrancesco Fiorenza Producer Aitor Mantxola Cinematographer Pablo Blanco Film Editing Roque Baños Original Music Manuel Ludeña Production Design, Art Director Juan Pablo del Campo Set Decoration Alberto Luna Costume Design Camilla-Valentine Isola Casting Gretchen Cowan Writer