Jena Malone

~ as ~

Grace

Danny Huston

~ as ~

Father Romero

Thoren Ferguson

~ as ~

DCI Harris

Will Keen

~ as ~

John

Ian Pirie

~ as ~

Vincent

Janet Suzman

~ as ~

Mother Superior

Valerie Sarruf

~ as ~

Female Patient

Godwin To

~ as ~

Patient's Husband

Alexandra Lewis

~ as ~

Sister Beth

Steffan Cennydd

~ as ~

Michael