Luke Treadaway

Christopher Boone

Niamh Cusack

Siobhan

Paul Ritter

Ed

Nicola Walker

Judy

Una Stubbs

Mrs Alexander/Voice Six/Ensemble

Sophie Duval

Mrs Shears/Mrs Gascoyne/Voice One/Ensemble

Nicholas Sidi

Mr Shears/Mr Wise/Duty Sergeant/Voice Two/Ensemble

Matthew Barker

Mr Thompson/Policeman/Voice Three/Ensemble

Rhiannon Harper-Rafferty

No. 44/Punk Girl/Voice Five/Ensemble

Howard Ward

Reverend Peters/Rhodri/Uncle Terry/Voice Four/Ensemble