Paddy Considine as Peter Hunter

Warren Clarke as Bill Molloy

Maxine Peake as Helen Marshall

James Fox as Philip Evans

David Calder as Sir John Marsden

Nicholas Woodeson as Michael Warren

Tony Pitts as John Nolan

Jim Carter as Harold Angus

David Morrissey as Maurice Jobson

Eddie Marsan as Jack Whitehead

Sean Harris as Bob Craven

Tony Mooney as Tommy Douglas

Shaun Dooley as Dick Alderman

Ron Cook as Clement Smith

Lesley Sharp as Joan Hunter

Peter Mullan as Martin Laws

Robert Sheehan as BJ

Joseph Mawle as The Ripper

Andrew Garfield as Eddie Dunford

Michelle Holmes as Sharon Douglas

Kelly Freemantle as Clare Strachan

Julia Ford as Elizabeth Hall

Charlotte James as Karen Douglas

Chris Walker as Jim Prentice

Katherine Vasey as Steph

James Weaver as Sgt. John Chain

Darren Whitfield as Detective (uncredited)