Mo

Julie Walters

As Mo Mowlam

David Haig

As Jon Norton

Gary Lewis

As Adam Ingram

Tony Maudsley

As Peter Kilfoyle

Steven Mackintosh

As Peter Mandelson

Toby Jones

As Dr. Mark Glaser

Adrian Dunbar

As David Trimble

Lucy Boynton

As Henrietta Norton

John Lynch

As Gerry Adams

Eoin McCarthy

As Martin McGuinness

Ian Beattie

As Michael Stone

Ellie Haddington

As Jean

Terence Harvey

As Mr Campbell-Grey

Harry Ditson

As Sen. George Mitchell

Rebekah Staton

As Kate

Stella Gonet

As Dr Susi Strang

Ivan Little

As Himself

Stephen Don

As Brendan MacCionnaith

Kerry Shale

As Bill Clinton

Marc O'Shea

As Johnny Adair

Billy Clarke

As Harold Gracey

Emma Cambridge

As Ellen

Cathy White

As Radiographer

Katie Cecil

As Jo

Drew Thompson

As Paramilitary Thug

Gary Henry

As Kevin

Deborah Wiseman

As Centre Manager

Helena Bereen

As Elderly Woman

Neill Virtue

As Security Guard