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