- Johnny Vegas
- Â Moz / ... 54 episodes, 2005-2011
- Graham Duff
- Â Brian / ... 50 episodes, 2005-2011
- Nicola Reynolds
- Â Nicki 48 episodes, 2005-2011
- Tom Goodman-Hill
- Â PC 46 episodes, 2005-2011
- Ryan Pope
- Â Psycho Paul / ... 44 episodes, 2005-2011
- David Sant
- Â Cartoon Head / ... 43 episodes, 2005-2011
- Ben Crompton
- Â Colin 39 episodes, 2005-2011
- Jo Neary
- Â Judith 38 episodes, 2006-2011
- Seymour Leon Mace
- Â Steve / ... 38 episodes, 2005-2010
- Sinead Matthews
- Â Jenny 36 episodes, 2005-2011
- Haruka Kuroda
- Â Yasuko 25 episodes, 2005-2011
- Alfie Joey
- Â Derrick 25 episodes, 2005-2011
- Hanne Steen
- Â Carmel 24 episodes, 2006-2011
- Andrew Lee Potts
- Â Lee 23 episodes, 2005-2011
- Mick Miller
- Â Keith 22 episodes, 2008-2011
- Emma Fryer
- Â Tania 20 episodes, 2007-2011
- Tony Burgess
- Â Troy 19 episodes, 2005-2011
- Tim Fallows
- Â Jason 19 episodes, 2005-2011
- Michael Kofi
- Â Xavier 18 episodes, 2008-2011
- Peter Slater
- Â Alan 17 episodes, 2007-2010
- Natalie Gumede
- Â China 16 episodes, 2005-2010
- Andrew Lawrence
- Â Marco 16 episodes, 2007-2010
- Fist
- Â Self 15 episodes, 2008-2011
- Jo Enright
- Â Carol 14 episodes, 2009-2011
- Ronny Jhutti
- Â Kuldip 13 episodes, 2005-2007
- Dan Li
- Â Tony 13 episodes, 2008-2011
- Naomi Bentley
- Â Rainbow 13 episodes, 2007-2011
- Jessica Peh
- Â Kim 13 episodes, 2007-2011
- Haruka Abe
- Â Miko 13 episodes, 2007-2011
- Janeane Garofalo
- Â Tilly 13 episodes, 2010-2011
- Hon Ping Tang
- Â Chen 12 episodes, 2008-2010
- Danny Morgan
- Â Jake 10 episodes, 2008-2011
- Sunetra Sarker
- Â Sangita 9 episodes, 2005-2008
- Des O'Malley
- Â Felix 7 episodes, 2005-2008
- Elinor Crawley
- Â Jess 6 episodes, 2011
- James Foster
- Â Cartoon Head 6 episodes, 2005-2010
- David Bradley
- Â Stemroach 6 episodes, 2006-2008
- Rebecca Atkinson
- Â Asia 5 episodes, 2005-2006
- Malcolm Boyle
- Â Warren 5 episodes, 2008-2011
- Amaan Patel
- Â Baby Sanjeev 4 episodes, 2008
- Maxine Burth
- Â WPC 4 episodes, 2005-2011
- Josephine Welcome
- Â Mrs. Rupani 4 episodes, 2007-2010
- Lee Williams
- Â Luke 4 episodes, 2007
- Neil Bell
- Â Ian 3 episodes, 2006
- Beatrice Kelley
- Â Sheila 3 episodes, 2005-2007
- Liz Sutherland
- Â Mrs. Low 3 episodes, 2010-2011
- Zain E. Nazar
- Â Baby Sanjeev 3 episodes, 2007
- Philip Brodie
- Â Nikolai 3 episodes, 2009-2010
- Iain McKee
- Â Jamie 3 episodes, 2009-2010
- Dominic Doughty
- Â Stripes 3 episodes, 2008-2010
- Sean Lock
- Â Nathaniel 3 episodes, 2010
- Jason Manford
- Â Jack 2 episodes, 2005
- Darren Tighe
- Â Davey 2 episodes, 2006
- Vincent Ebrahim
- Â Mr. Rupani 2 episodes, 2006
- Dylan Edwards
- Â Jake 2 episodes, 2009-2010
- David Mulrooney
- Â Leo The Window Cleaner 2 episodes, 2005-2010
- Matt McKenzie Lee
- Â Daniel 2 episodes, 2005
- Sophia Di Martino
- Â Helena 2 episodes, 2007-2009
- Karl Lucas
- Â Peter 2 episodes, 2007-2010
- Barry Adamson
- Â Blackball 2 episodes, 2010-2011
- Graham Fellows
- Â Dr. Persil 2 episodes, 2010
- Sam Fletcher
- Â Dinos 2 episodes, 2009-2010
- Richard Cottier
- Â Jem 2 episodes, 2008-2010
- Mark E. Smith
- Â Jesus 2 episodes, 2007-2010
- Elena Poulou
- Â Astrid 2 episodes, 2010-2011
- Zoe Gardner
- Â Monique 2 episodes, 2009-2010
- Eileen Essell
- Â Mrs. Coneybear 1 episode, 2006
- Rosie MacPherson
- Â Dream Jenny 1 episode, 2010
- Kara Tointon
- Â Kara Tointon 1 episode, 2011
- Ian Hallard
- Â Owen 1 episode, 2006
- Mark McDonnell
- Â Dream Brian 1 episode, 2010
- Paul Weller
- Â Paul Weller 1 episode, 2011
- Daniel Hayes
- Â Barry Two Mouths 1 episode, 2010
- Alisdair McKee
- Â Leon 1 episode, 2007
- Paul Loughran
- Â Ratcatcher 1 episode, 2005
- Abi Eniola
- Â Alex 1 episode, 2005
- Tanveer Ghani
- Â Ravi 1 episode, 2009
- Daniel Rigby
- Â Hugh 1 episode, 2011
- Kay Purcell
- Â Alice 1 episode, 2006
- Julia Davis
- Â Dawn 1 episode, 2008
- George Ward
- Â Ewan 1 episode, 2007
- Stuart Kelsall
- Â Lindsay 1 episode, 2005
- Regina Murtazina
- Â Cassandra 1 episode, 2008
- Kris Mochrie
- Â Matt 1 episode, 2005
- Margaret Henshaw
- Â Delivery Woman 1 episode, 2005
- Jonathan Aris
- Â Rich 1 episode, 2009
- David Ononokpono
- Â Linden 1 episode, 2005
- Marlon G. Day
- Â Jim 1 episode, 2006
- Tanya Vital
- Â Window Cleaner 1 episode, 2009
- Robert Cohen
- Â Stepan 1 episode, 2009
- Elianne Byrne
- Â Amanda 1 episode, 2005
- Michael Hugo
- Â Liam 1 episode, 2006
- Peter Whittington
- Â James 1 episode, 2006
- Pooky Quesnel
- Â Donna 1 episode, 2011
- Steven Blower
- Â Clive 1 episode, 2008
- Emma Kearney
- Â Jackie 1 episode, 2005
- Colin Parry
- Â Lewis 1 episode, 2009
- Tom Andrews
- Â Weims 1 episode, 2010
- Eri Jackson
- Â Heather 1 episode, 2011
- Di Botcher
- Â Nicki's Mum 1 episode, 2007
- Rula Lenska
- Â The Red King 1 episode, 2011
- Reece Hampton
- Â Flynn 1 episode, 2008
- Kate G. Laycy
- Â Attractive Girl 1 episode, 2005
- Alan Yentob
- Â Self 1 episode, 2009
- John Robb
- Â Ross 1 episode, 2010
- Paul-Michael Giblin
- Â Fireman 1 episode, 2009
- Mark Radcliffe
- Â Josh 1 episode, 2010
- Davina Mellows
- Â Young PC 1 episode, 2005
- Ellis Carney
- Â Young Niki 1 episode, 2005
- Chris Lindon
- Â Malook (uncredited) 1 episode, 2005
- Wayne Docksey
- Â Police Dog Handler (uncredited) 1 episode, 2006
- Simon Flynn
- Â Party goer (uncredited) 1 episode, 2008