Bill Milner as Tom Harvey

Maisie Williams as Lucy Walker

Rory Kinnear as Ellman

Miranda Richardson as Nancy 'Nan' Harvey

Jordan Bolger as Danny

Charley Palmer Rothwell as Eugene

Helen Daniels as Kelly

Aymen Hamdouchi as Cutz

Christopher Colquhoun as Dr. Bale

Adam Lazarus as Doctor

Nick Thomas-Webster as Police Officer

Susan Fordham as Police Officer

McKell David as Hazzard

Armin Karima as Ant

Shaquille Ali-Yebuah as Cass

Leon Annor as Keon

Lucy Thackeray as Michelle

Oliver Coopersmith as Ben

Petrice Jones as Shotgun

Cameron Jack as Headteacher

Lindy Pieri as Teacher

Sally Davey as Teacher

Clara Onyemere as Teacher

Jamie Roberts as Teacher

Samuel Kyi Ankrah as Crow Gang Member

Matthew Faucher as Crow Gang Member

Jason Beeston as Drug Dealer

Gary Baxter as Riot Police

Ben Bean as Student

Cynthia Garbutt as Voice on Phone 6 (uncredited)