Andrea Riseborough

Colette McVeigh

Clive Owen

Mac

Gillian Anderson

Kate Fletcher

Aidan Gillen

Gerry

Domhnall Gleeson

Connor

Brid Brennan

Ma

David Wilmot

Kevin Mulville

Stuart Graham

Ian Gilmour

Martin McCann

Brendan

Maria Laird

Young Collette

Michael McElhatton

Liam Hughes

Gary Lydon

Geoff

Tom Bennett

Watcher #2

Morgan Watkins

MI5 Officer

Mark Huberman

RUC Officer at Hospital

Eoin Murtagh

Louie, Fletcher's Son

Alan Devine

Social Club Barman

David Herlihy

Senior Staff Officer

Lisa Walsh

Brendan's Girlfriend