Julie Walters

Character: Mo Mowlam

David Haig

Character: Jon Norton

Gary Lewis

Character: Adam Ingram

Tony Maudsley

Character: Peter Kilfoyle

Steven Mackintosh

Character: Peter Mandelson

Toby Jones

Character: Dr. Mark Glaser

Adrian Dunbar

Character: David Trimble

Lucy Boynton

Character: Henrietta Norton

John Lynch

Character: Gerry Adams

Eoin McCarthy

Character: Martin McGuinness

Ian Beattie

Character: Michael Stone

Ellie Haddington

Character: Jean

Terence Harvey

Character: Mr Campbell-Grey

Harry Ditson

Character: Sen. George Mitchell

Rebekah Staton

Character: Kate

Stella Gonet

Character: Dr Susi Strang

Ivan Little

Character: Himself

Stephen Don

Character: Brendan MacCionnaith

Kerry Shale

Character: Bill Clinton

Marc O'Shea

Character: Johnny Adair

Billy Clarke

Character: Harold Gracey

Emma Cambridge

Character: Ellen

Cathy White

Character: Radiographer

Katie Cecil

Character: Jo

Drew Thompson

Character: Paramilitary Thug

Gary Henry

Character: Kevin

Deborah Wiseman

Character: Centre Manager

Helena Bereen

Character: Elderly Woman

Neill Virtue

Character: Security Guard