Rooney Mara as Young Roseanne McNulty

Theo James as Father Gaunt

Vanessa Redgrave as Old Roseanne McNulty

Eric Bana as Dr. William Grene

Jack Reynor as Michael Eneas

Aidan Turner as Jack McNulty

Susan Lynch as Nurse

Tom Vaughan-Lawlor as McCabe

Charlie Kelly as Beau

Nika McGuigan as Chrissie

Antony Acheampong as G.I Grove

Omar Sharif Jr. as Daniel O'Brien

Pauline McLynn as Anne McCartney

Brian Fortune as Psychiatric Analyst

Elva Trill as Pregnant Woman

Laurence O'Fuarain as Detective

John Connors as Joe Brady

Lesa Thurman as Nurse O'Donnell

Enda Oates as Driver

Sheila Moylette as Angela

Shimmy Marcus as Doctor

Ian Meehan as Detective

Tony Doyle as Dessie

Ryan McAllister as Paddy

Geraldine McAlinden as Sister Mary

Michelle Ward as Pregnant Girl #4

Mark Quigley as Doctor

Rhea Townsend as Georgia

Colin Maher as Hospital Security Guard

Grant O'Hara as Eamonn

Hannah Faith as Susan

Noreen Gorman as Nurse with Whistle

Scott Murray as Checkpoint Soldier

Faolan Barry as Traveller boy

Ria Murphy as Tobacco Woman

Nigel Davey as Hangman

Christiane Reicke as Mental Patient