Taissa Farmiga
Sister Irene

Demián Bichir
Father Burke

Bonnie Aarons
The Nun / Valak

Jonas Bloquet
Maurice Theriault

Ingrid Bisu
Sister Oana

Patrick Wilson
Ed Warren

Vera Farmiga
Lorraine Warren

Lili Taylor
Carolyn Perron

Charlotte Hope
Sister Victoria

Sandra Teles
Sister Ruth

Maria Obretin
Sister Abigail

August Maturo
Daniel

Jack Falk
Daniel

Ani Sava
Sister Jessica

Michael Smiley
Father Pasquale

Gabrielle Downey
The Abbess

David Horovitch
Cardinal Conroy

Tudor Munteanu
Grigore

Lili Bordán
Waitress Marta

Scarlett Hicks
Scarlett

Izzie Coffey
Student

Jared Morgan
Marquis

Laur Dragan
Villager

Eugeniu Cozma
Villager

Manuela Ciucur
Sister Christine

Beatrice Péter
Praying Nun

Ana Udroiu
Praying Nun

Andreea Sovan
Praying Nun

Dana Voicu
Praying Nun

Andreea Moldovianu
Praying Nun

Beatrice Rubica
Praying Nun

Claudia Susanu
Praying Nun

Boiangiu Alma
Demon Nun

Dee Bradley Baker
Demonic Voice

Debra Wilson
Demonic Voice

Mark Steger
Duke

Lidiya Korotko
Barmaid

Emma Appleton
Elena (uncredited)

Jonny Coyne
Gregoro

Flynn Hayward
Sister Samantha (uncredited)

Daniel Mandehr
Farmer Jozef

Samson Marraccino
Timothy (uncredited)

Jamie Muscato
Father Patino (uncredited)

Lourdes Nadres
Nun (uncredited)

Simon Rhee
Holy Man 1 (uncredited)

Sandra Rosko
Captured Nun (uncredited)