- Rosie Cavaliero - Vicky
- Leanne Wilson - Cafe Girl
- Peter Capaldi - Professor Alistair MacLeish
- Kevin Bishop - Ollie
- Tim Preece - Mr. Klugman
- Philip Herbert - Lazerbowl Manager
- Cheryl Campbell - Penny Chapman
- Paul Clayton - Ian Chapman
- Joe Van Moyland - Jamie Chapman
- Nigel Boyle - JLB Worker
- Ellie Chidzey - Lap Dancer
- Endy McKay - Lisa
- James Carlton - Matt Townsend
- Agnieszka Liggett - Eva
- Stuart McQuarrie - Gym Manager
- Liz May Brice - Sally Slater
- Francis Magee - Russell
- Jay Simpson - Foz
- Dorothy Atkinson - Therapist
- Katy Brand - Lucy
- Cara Horgan - Aurora
- Tom Knight - Malcolm
- Philip Harvey - Vicar
- Colin Mace - Motorist
- Mathew Baynton - Simon
- Justin Edwards - Alan
- Tom Chadbon - Martin
- Ingrid Oliver - Natalie
- Daisy Haggard - Practice Nurse
- Sarah Hadland - Karen
- Jonathan Aris - Ben Prenderghast
- Rufus Jones - Peter
- Lynn Farleigh - Pam Corrigan
- John Hodgkinson - Tony
- Isy Suttie - Dobby
- Paterson Joseph - Alan Johnson
- Jim Howick - Gerard Matthew
- Emily Bruni - Gail Huggins
- Camilla Beeput - Zahra
- Vera Filatova - Elena
- Danny Babington - Ben
- Bart Edwards - Joe
- Angus Wright - Angus Maynard
- Eliza L. Bennett - Sarah Corrigan
- Robert Harley - Barry
- Sonny Muslim - Clean Shirt Boy
- Carolyn Pertwee - Davina
- Dolly Wells - Paula
- Sandy Walsh - Barbara Bingham
- Keir Charles - Valerie's Brother
- Michael Wildman - Band Member
- Neil Edmond - Paramedic
- Alexander Kirk - Keith
- David Armand - Rejected Dancer
- Stephen Beresford - Dancer
- Cathryn Bradshaw - Dance Class Leader
- Alan Westaway - Gwyn
- Ashley Barker - WWII Re-Enactment Officer
- Steve Edge - Darryl
- Adam G. Goodwin - Studio Technician
- Gareth Tunley - Gog
- Terry Bird - Terry
- Trevor Laird - Laurie
- Tadeusz Pasternak - Nim
- James Holmes - Vegetarian Homeless Man
- Alexia Traverse-Healy - Band Fan
- Harmage Singh Kalirai - Mr. Rashid
- Catherine Shepherd - April Danecroft
- Tony Wadham - Pete Preston
- Jordan Long - Zack
- Jenny Howe - Registrar
- Tim Steed - Sam
- Josef Altin - Mugger #1
- Shelley Blond - Michelle
- Lee Long - Kid at Chicken Corner's Mate
- Mark Wakeling - Stu
- Morgan Watkins - Mugger #2
- Surinder Duhra - Psychiatrist
- Meredith MacNeill - Merry
- Liam Noble - Andy
- Brodie Bass - Jude
- Tim Faraday - Bouncer
- Simon Lowe - Dom
- Alex MacQueen - Jury Foreman
- Wendy Meredith - Female Juror
- Tracy Whitwell - Carla
- Georgia Zaris - Laura
- Eryl Maynard - Isobel
- Geoffrey McGivern - Gerard
- Jack Bence - Burglar
- Jessica Regan - Actress in Play
- Susannah Wise - Heather
- Zac Fox - Barney Chapman
- Natasha Beaumont - Saz
- Margaret Cabourn-Smith - Speed Dating Coordinator
- Sarah Niles - Cashier
- Scarlett Sabet - Fertility Clinic Nurse
- Sari Sheehan - Lindsey
- Tessa Wyatt - Jackie Usborne
- Niky Wardley - Cally
- James Bachman - Role Playing Guy
- Alex Lowe - Edwin Pascoe
- Robert Cambrinus - Steffan Strauss
- Douglas McFerran - Security Guard
- Max Brown - Drugs Customer
- Stevee Davies - Drugs Customer
- Penelope Beaumont - Jan
- Justin Brett - Michael
- Robert Popper - Annoying Man
- Phillip Brooks - Father
- Jasper Jacob - Colin
- Marcus Garvey - Party Crasher
- Will Beer - Driving Instructor
- Mark Kempner - Driving Test Examiner
- Yasmine Akram - Yana
- Michele Austin - Midwife
- Lorraine Brunning - Receptionist Nurse
- Dylan Edwards - Video Arcade Oddball
- Ashley George - Fast Food Server
- Daniel Ings - Doctor
- Frog Stone - Maternity Theatre Nurse
- David Fynn - Games Shop Assistant
- Jack Doolan - Door-to-Door Seller
- Clive Merrison - Dan Corrigan
- Kanako Nakano - Yoko
- Richard Sandling - Raymond
- India Fisher - Katie Matthew
- Matt Garrill - Hugh
- Graham Padden - Dr. Bendix
- Dan Tetsell - Robert Grayson
- Nadia Cameron-Blakey - Celia
- Charlie Covell - Trish
- Tim Downie - Greg
- Patrick Kennedy - Neil
- Rakhee Thakrar - Waitress
- Adam Byron - Charlie
- Bradley Hall - Local Youth
- Karen Ascoe - Young Mum
- Josephine Butler - Stephanie
- Rob Carter - MBA Tutor
- Sandra Reid - Sara
- Jiggy Bhore - Mo Gatland
- Huw Higginson - Dave Franks
- George Potts - Alan McGurnagee
- Laura Jean Marsh - Alice
- Franc Ashman - Molly
- Tim Key - Jerry
- Cariad Lloyd - Megan
- Jonathan Harden - Gregory
- Simon Harvey - Will
- Simon Meacock - Wadey
- Max Olesker - Aaron
- Conor MacNeill - Clerk
Stuart McQuarrie hace el papel de Gym Manager.
Robert Webb interpreta a Jeremy Usborne en la serie.
David Mitchell hace el papel de Mark Corrigan.
Sophie Winkleman interpreta a Big Suze en la serie.
Capítulo disponible en las siguientes plataformas:
