Rooney Mara

Character: Young Roseanne McNulty

Theo James

Character: Father Gaunt

Vanessa Redgrave

Character: Old Roseanne McNulty

Eric Bana

Character: Dr. William Grene

Jack Reynor

Character: Michael Eneas

Aidan Turner

Character: Jack McNulty

Susan Lynch

Character: Nurse

Tom Vaughan-Lawlor

Character: McCabe

Charlie Kelly

Character: Beau

Nika McGuigan

Character: Chrissie

Antony Acheampong

Character: G.I Grove

Omar Sharif Jr.

Character: Daniel O'Brien

Pauline McLynn

Character: Anne McCartney

Brian Fortune

Character: Psychiatric Analyst

Elva Trill

Character: Pregnant Woman

Laurence O'Fuarain

Character: Detective

John Connors

Character: Joe Brady

Lesa Thurman

Character: Nurse O'Donnell

Enda Oates

Character: Driver

Sheila Moylette

Character: Angela

Shimmy Marcus

Character: Doctor

Ian Meehan

Character: Detective

Tony Doyle

Character: Dessie

Ryan McAllister

Character: Paddy

Geraldine McAlinden

Character: Sister Mary

Michelle Ward

Character: Pregnant Girl #4

Mark Quigley

Character: Doctor

Rhea Townsend

Character: Georgia

Colin Maher

Character: Hospital Security Guard

Grant O'Hara

Character: Eamonn

Hannah Faith

Character: Susan

Noreen Gorman

Character: Nurse with Whistle

Scott Murray

Character: Checkpoint Soldier

Faolan Barry

Character: Traveller boy

Ria Murphy

Character: Tobacco Woman

Nigel Davey

Character: Hangman

Christiane Reicke

Character: Mental Patient

Derek Carroll

Character: Villager (uncredited)