- Craig Parkinson - Shaun Merton
- Matthew McNulty - Seth
- Alex Reid - Sally
- Robert Sheehan - Nathan Young
- Natasha O'Keeffe - Abbey
- Matt Cross - Tim
- Erin Richards - Sarah
- Anna Wilson-Jones - Laura
- Adrian Rawlins - Dave
- Justin Edwards - Roger
- Michelle Fairley - Louise Young
- Jessica Brown Findlay - Rachel
- Ruth Sheen - Maggie
- Ellie Kendrick - Helen
- Jordan Metcalfe - Brian
- Phil Daniels - Keith the Dog (voice)
- Nathalie Emmanuel - Charlie
- Louis Decosta Johnson - Psychotic Tony
- Ben Smith - Lee
- Jo Stone-Fewings - Jeremy
- Roland MacLeod - Stan
- Robert Fyfe - Harry
- Nicholas Burns - PC Wilson
- Amy Beth Hayes - Young Ruth
- Clare Welch - Old Ruth
- Jamie Davis - Ben
- Bunmi Mojekwu - Jodi
- Jack Bence - Darren
- Stephen Wight - Danny
- Perry Benson - Beverly
- Anna Koval - Sam
- Florence Bell - Rebecca
- Jamie Blackley - Matt
- Danny Barnham - Liam
- Claire Prempeh - Reporter
- Michael Obiora - Pete
- Steven Cree - Tom
- Sam Keeley - Jamie
- Dexter Fletcher - Mike Young
- Ruth Negga - Nikki
- Zawe Ashton - Jessica
- Ian Pirie - DI Roberts
- Richard Riddell - Bruno
- Craig Vye - Matt
- Hannah Britland - Emma
- Louise Ford - Katie
- Jay Taylor - Mark
- Josef Altin - Gary
- Catrin Stewart - Lily
- Michael Marcus - Peter
- Fred Pearson - Friedrich
- David Barrass - Hitler
- Glenn Speers - Captain Smith
- Nick Blood - Dom
- Nicola Harrison - Clare
- Alex Childs - Doctor
- Amy Manson - Leah
- Joanna Christie - Jo
- Hannah John-Kamen - Carly
- Anna Nightingale - Jenna
- Barry Aird - Custody Officer
- David Ajala - Private Investigator
- Charlene McKenna - Shannon
- Sandra Maitland - Maggie
- Jayne Wisener - Stacie
- Iskra Lawrence - Cheerleader
- Velile Tshabalala - Laura
- Mark Heap - Jonas
- Charlotte McDougall - Woman
- Matthew Steer - James
- Charlie Murphy - Grace
- Danny Sapani - Tony Morecombe
- Francis Magee - Dan
- Diveen Henry - Nurse
- Zara White - Tara
- Juliet Cowan - Course Leader
- Jack Hardwick - Mark
- Charlie Covell - James
- Sandy McDade - Sister Catherine
- Sam Battersea - Sister Elizabeth
- Eve Ponsonby - Sarah
- Charles Mnene - Derren
- Charles Mnene - Youth
- Paul Brown - Horseman of the Apocalypse #3
- Klariza Clayton - Chloe
- Jack Donnelly - White Rabbit
- Gemma Lawrence - Ellie
- Sydney White - Tanya
- Nathan Constance - Vince
- Susy Kane - Presenter
- Kyle Summercorn - Billy
- Sean Francis - Dr. Jones
- Joshua McGuire - Ollie
- Charlie Hollway - Chris
- Dylan Edwards - Neil
- Natalie Klamar - Daisy
- Harry Hepple - Luke
- Edward Hogg - Elliot
- Gwyneth Keyworth - Marnie
- Katie Moore - Tanya
- Michael Müller - Edward
- Marc Baylis - PC Mitchell
- Lee Long - Cameron
- Nathaniel Martello-White - Michael
- Imogen Doel - Sadie
- Eleanor Wyld - Ally
- Lucy Gaskell - Lola
- Nadine Lewington - Lisa
- Rick Warden - Mike
- Andrew Gower - Jake
- Tom Austen - Pete
- Gresby Nash - Drama Teacher
- Alex Austin - Richard Saunders
- Ellie Turner - Katie
- Osy Ikhile - Craig
- Chandra Ruegg - Polly
- Oliver Wilson - Will
- Sophie Austin - Girl at Funeral
- Jenny Bede - Stephi
- Ruby Wild - Emma
- Anna-Maria Nabirye - Nurse
- Rosie Day - Lucy
- Robert Whitelock - Keith
- Phil Cornwell - Geoff
- Liz May Brice - Tina
- Julia Ford - Pat
- Michael Winder - Sam
- Lydia Wilson - Laura
- Royce Pierreson - Rob
- Mark Phoenix - Scary
- Kenneth Colley - Old Rudy
- Oliver Lansley - Stuart
- Riann Steele - Naomi
- Kyle Redmond-Jones - Young Mr. Johnson
- Scarlett Brookes - Leah
- Chloe Pirrie - Debbie
- Ade Oyefeso - Lucas
- Lewis Reeves - Ben
- Kate Bracken - Karen
- Claire Rafferty - Hayley
- Ciaran O'Brien - Kevin
- Kevin Guthrie - Mark
- James Boyland - Car Thief
- Daniel Boyd - Luke
- Luke Harris - Neil
- Howard Overman
- Petra Fried
- Murray Ferguson
- Matt Strevens
Adrian Rawlins hace el papel de Dave.
Dexter Fletcher hace el papel de Mike Young.
Joseph Gilgun interpreta a Rudy Wade en la serie.
Karla Crome hace el papel de Jess.
Nathan McMullen interpreta a Finn Samson en la serie.
Matt Stokoe hace el papel de Alex.
Shaun Dooley interpreta a Greg en la serie.
Natasha O'Keeffe interpreta a Abbey en la serie.
Capítulo disponible en las siguientes plataformas:
