Richard Dormer as Terri Hooley

Jodie Whittaker as Ruth

Karl Johnson as George Hooley

Michael Colgan as Dave Hyndman

Liam Cunningham as Davy

Dylan Moran as Pat

Ruth McCabe as Mavis Hooley

Mark Ryder as Greg Cowen

Killian Scott as Ronnie Matthews

Kerr Logan as Feargal Sharky

Adrian Dunbar as Andy

Andrew Simpson as Getty

Conor MacNeill as Schoolboy Executive

Petesy Burns as Pugwash

Demetri Goritsas as Paul McNally

Patrick O'Kane as Hatchet

Ryan McParland as Fangs

Niall Cusack as Bank Manager

Diarmuid Noyes as Brian Young

Niall Wright as Mickey Bradley

Richard Clements as Marty

John Travers as Mutt

Mark Asante as Soldier

Chris Patrick-Simpson as Wolfgang Zorrer

Allan Gildea as RUC Officer

Claire Hannaway as Pink Haired Punk Girl

Kieron Forsyth as John Peel

Laura Hughes as Nurse