Cillian Murphy

Damien

Pádraic Delaney

Teddy

Liam Cunningham

Dan

Orla Fitzgerald

Sinead

Damien Kearney

Finbar

Frank Bourke

Leo

Myles Horgan

Rory

Martin Lucey

Congo

Aidan O'Hare

Steady Boy

Shane Casey

Kevin

Máirtín de Cógáin

Sean

Keith Dunphy

Terence

Gerard Kearney

Donacha

Noel O'Donovan

Station Guard

Frank O'Sullivan

Man in Pub

Roger Allam

Sir John Hamilton

William Ruane

Johnny Gogan

Sean McGinley

Father Denis

Denis Conway

Priest

Tom Charnock

Sergeant at Cottage

Mark Wakeling

Lieutenant

Antony Byrne

Interrogator

Jamie Lomas

British Soldier

Colin Parry

British Soldier

Siobhán McSweeney

Julia (uncredited)

Philip Wright

Man (uncredited)