Jena Malone

Grace

Danny Huston

Father Romero

Thoren Ferguson

DCI Harris

Will Keen

John

Ian Pirie

Vincent

Janet Suzman

Mother Superior

Alexandra Lewis

Sister Beth

Steffan Cennydd

Michael

Kit Rakusen

Young Michael

Eilidh Fisher

Sister Meg

Jolade Obasola

Sister Matilda

Victoria Donovan

Grace's Mother

Shaun Scott

Father Carol

Godwin To

Patient's Husband

Daisy Allen

Young Grace

Marilyn O'Brien

Nurse

Valerie Sarruf

Female Patient

Brian Wells

Taxi Driver

Michael Brophy

Father Jacobs

Charlotte Palmer

Sister Dianne