- Harry Trevaldwyn - Stan
- Rhys Yates - Smiler
- Charles Babalola - Malaki
- Claes Bang - The Dean
- Tom Hanson - Spencer
- Dolly Wells - Margaret
- Aiyana Goodfellow - Esme
- Stephen Merchant - Greg
- Ian McElhinney - John Snr
- Nina Wadia - Shanthi
- Gyuri Sarossy - Jerzy
- Steve Aaron-Sipple - Man (Rani's Lover)
- Jessica Boyde - Anne-Marie
- Chelsea Edge - Sarah
- Bridgitta Roy - Rhona
- Nicholas Rowe - Strickland
- Rufus Wright - DCI Monroe
- Richard E. Grant - The Earl
- Amanda Drew - Ruth
- Patrick Robinson - Sean
- Ricky Grover - Burgess
- Ross Hatt - Dog Walker
- Gerard Horan - Hilgard
- Adrian Lukis - Kelvin Archer
- Adam Vaughan - Scary Inmate
- Matilda Ziegler - Judge #1
- Emily Burnett - Hotel Receptionist
- Gail Kemp - Fertility Clinician
- John El-Jor - Hipster
- Juri Henley-Cohn - Wall Street Guy
- Joe Coen - Architect
- Patricia England - Smiler's Elderly Neighbour
- Mircea Monroe - Helena
- Charlie Rawes - Victor
- Chanel Waddock - Josie
- David Yelland - Judge #2
- Justin Edwards - Head Teacher
- Lloyd Griffith - Nigel
- Julia Davis - Rita
- Meghan Treadway - News Reporter
- Meghan Treadway - Esther Mansfield
- Guillermo Bedward - Tom
- Tom Clegg - Junkie
- Marcus Fraser - Souljah
- Isla Gie - Holly
- Annie McGrath - Producer
- Alan Mehdizadeh - Cabbie
- Lois Chimimba - Claire
- Joseph Passafaro - PC Denison
- James Redmond - Club Owner
- Chicho Tche - Carter
- Jonny Weldon - Laurence
- Jayde Adams - Julie
- Marc Antolin - Male Interviewer
- Billy Harris - Posh Boy
- Billy Harris - Scott Patterson
- Ellie Courtiour - Tyler
- Charlie Hammond - Boy
- Julie Fernandez - Female Interviewer
- Godiva Marshall - Kelly
- Ellen Robertson - Rentagob
- Chris Bianchi - Quiz Master
- Will Brown - Oily Developer
- Elizabeth Counsell - Barbara
- Yvonne Edgell - The Cook
- Sasha Frost - Dr Jane Aspinall
- Judith Haley - Louise
- Rosa Robson - Lara
- Gabrielle Sheppard - Anastasia
- Jamie O'Rourke - Man in Pup Mask
- Earl Palmer - Bouncer
- Michael Cochrane - Mr Kingsley
- Alison Fitzjohn - Bored Woman
- Kyle Pryor - Hunky Guy
- Gethin Alderman - Video Pap
- Raj Bajaj - Paparazzo
- Chike Chan - Director Yang
- John Lomas - Store Detective
- James Nelson-Joyce - Spider
- Sam Troughton - Wilder
- Helen Belbin - News Reporter
- Buffy Davis - Susan
- Louis Emerick - Marcus
- Adrian Harris - Man in Crumpled Suit
- Alexandria Riley - Yvonne
- Katy Carmichael - Kathy
- Tallulah Conabeare - Young Margaret
- Liam Garrigan - Young Frank
- Ella Kenion - Sales Woman
- Francesca Knight - Young Louise
- Rayna Campbell - Jacqui
- Alexander Cobb - Letting Agent
- Kerry Howard - Trace
- Mark Olver - Seedy Looking Guy
Christopher Walken interpreta a Frank en la serie.
Stephen Merchant interpreta a Greg en la serie.
Darren Boyd interpreta a John en la serie.
Rhianne Barreto interpreta a Rani en la serie.
Gamba Cole interpreta a Christian en la serie.
Clare Perkins interpreta a Myrna en la serie.
Eleanor Tomlinson interpreta a Gabby en la serie.
Jessica Gunning hace el papel de Diane.
Scott Rose-Marsh hace el papel de Enforcer.
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