Aaron Taylor-Johnson as William

Imogen Poots as Eva

Matthew Beard as Jim

Hannah Murray as Emily

Tuppence Middleton as Candy

Daniel Kaluuya as Mo

Megan Dodds as Grace

Michelle Fairley as Rosie

Nicholas Gleaves as Paul

Jacob Anderson as Si

Ophelia Lovibond as Charlotte

Richard Madden as Ripley

Matthew Ashforde as Jim's Father

Dorothy Atkinson as Emily’s Mother

Alex Blake as Man on Mobile Phone

Noa Bodner as Woman at Book Launch

Amanda Boxer as Mrs. Sinclair

Lorraine Cheshire as Yorkshire Housewife

Matthew Fenton as Young Jim

Elarica Johnson as Ushi

Ross Gurney-Randall as Large Camden Man

Gerald Home as Tony Layton

Karin Ichihashi as Japanese Girl

Abigail Leonard as Gymnastics Coach

James Lester as Young 'Dorfli' Boy

Rebecca McLintock as Keisha

Jodie Miller as Tony Layton as Girl

Mary Roscoe as Psychiatrist

Scarlett Sabet as Betsy

Alex Peck as William as Girl

Simon Silva as Brazilian Bully #1

Michael Smart as Brazilian Bully #2

Fabio Pedrosa as Brazilian Bully #3

Claudio Moniz as Brazilian Bully #4

Emily Spires as Laura

Oliver Swainston as Brazilian Boy

Greg Bennett as Police Constable

Elizabeth Goram-Smith as Camden Girl

Billy Holland as Flashback Boy

Lindsay Lucas-Bartlett as Goth Girl

Sammy Measom as Gang Member

Panayiota Panteli as Chatroom Guest

Tedi Versace as Shopper