Russell CroweFather Gabriele Amorth
Daniel ZovattoFather Esquibel
Alex EssoeJulia
Franco NeroThe Pope
Peter DeSouza-FeighoneyHenry
Laurel MarsdenAmy
Cornell JohnBishop Lumumba
Ryan O'GradyCardinal Sullivan
Bianca BardoeRosaria
Santi BayónRoberto Vasquez IV (Henry's Dad)
Paloma BloydInterpreter
Alessandro GruttadauriaFather Gianni
River HawkinsEnzo / Halphas
Jordi ColletCarlos
Carrie MunroAdella
Marc VelascoWorker 1
Edward Harper-JonesYoung Amorth
Matthew SimCardinal Abato
Victor SoléSpanish Doctor
Tom BoningtonVatican Doctor
Andrea DugoniDrunken Farmer
Ed WhiteNazi Soldier
Laila BarwickDaughter (Farmhouse)
Gennaro DianaItalian Priest
Pablo RaybouldBishop Barbuto
Ralph InesonAsmodeus (voice)
Derek CarrollDoctor
Ella CannonPartisan