John Boyega

Moses

Jodie Whittaker

Sam

Nick Frost

Ron

Alex Esmail

Pest

Luke Treadaway

Brewis

Selom Awadzi

Tonks

Franz Drameh

Dennis

Simon Howard

Biggz

Jumayn Hunter

Hi-Hatz

Sammy Williams

Probs

Michael Ajao

Mayhem

Paige Meade

Dimples

Danielle Vitalis

Tia

Terry Notary

The Creature

Chris Wilson

Arresting Police Officer

Joey Ansah

Policeman 1

Adam Leese

Policeman 2

Adam Buxton

Documentary Voice Over

Maggie McCarthy

Margaret

Flaminia Cinque

Italian Woman

Jacey Sallés

Biggz's Mum

Karl Collins

Dennis' Dad

David Cann

Detective Superintendant

Lee Nicholas Harris

Police Officer - SWAT (uncredited)

Philip Harvey

CO19 Officer