Taissa Farmiga
Sister Irene

Jonas Bloquet
Maurice Theriault

Storm Reid
Sister Debra

Anna Popplewell
Kate

Bonnie Aarons
The Demon Nun / Valak

Katelyn Rose Downey
Sophie

Suzanne Bertish
Madame Laurent

Léontine d'Oncieu
Simone

Anouk Darwin Homewood
Céleste

Peter Hudson
Father Ridley

Tamar Baruch
Sister Amara

Natalia Safran
Sister Chloe

Maxime Elias-Menet
Jacques

Pascal Aubert
Father Noiret

Alexandra Gentil
Sister Astrid

Florence Mestais
Double Demon Nun

Gaël Raës
Cedric the Altar Boy

David Horovitch
Cardinal Conroy

Paul Spera
Deacon Scott

Kate Colebrook
Irene's Mother / St. Lucy

Margot Bernazzi
Young Irene

Grégory Di Meglio
Hotel Clerk

Delcho Koprivshki
Ethan Rome

Aaron-Jon North
Demon Goat

Andrew Morgado
Demonic Voice (voice)

Patrick Wilson
Ed Warren

Vera Farmiga
Lorraine Warren