• 
  Rachel Blanchard

  Nancy
• 
  Peter Capaldi

  Professor MacLeish (1 episode, 2004)
• 
  Tim Downie

  Greg
• 
  Sophie Winkleman

  Big Suze
• 
  Jesse Armstrong
• 
  Jay Simpson

  Foz (1 episode, 2007)
• 
  Flora Newbigin

  Valerie (1 episode, 2003)
• 
  Olivia Colman

  Sophie Chapman (24 episodes, 2003-2008)

• 
  David Armand

  Pete  (2 episodes, 2004)
• 
  Cheryl Campbell

  Penny Chapman (2 episodes, 2007)
• 
  Shelley Blond

  Michelle (1 episode, 2005)
• 
  James Bachman

  Role-playing Guy (1 episode, 2008)
• 
  Justin Edwards

  Mike (1 episode, 2003)
• 
  Philip Clarke

  Surprised Man (1 episode, 2003)
• 
  Robert Harley (I)

  Barry (1 episode, 2003)

• 
  Alex Lowe

  Cult Recruiter (1 episode, 2008)
• 
  Matt King

  Super Hans (19 episodes, 2003-2009)
• 
  Meredith MacNeill

  Merry (1 episode, 2005)
• 
  Robert Webb (VI)

  Jeremy Osborne (36 episodes, 2003-2009)
• 
  Zac Fox

  Barney Chapman (1 episode, 2008)
• 
  Daisy Haggard

  Practice Nurse (1 episode, 2003)
• 
  Sarah Hadland

  Karen (1 episode, 2004)
• 
  Agnieszka Liggett

  Eva (1 episode, 2007)
• 
  Alex Macqueen

  Jury Foreman (1 episode, 2005)
• 
  Jenny Howe

  Registrar (1 episode, 2004)
• 
  Sari Sheehan

  Linzi (1 episode, 2008)
• 
  Francis Magee

  Russell 'The Orgazoid' (1 episode, 2007)
• 
  Chris Wilson

  Security Guard (1 episode, 2008)
• 
  Dorothy Atkinson

  Therapist (1 episode, 2007)
• 
  Liam Noble

  Andy (1 episode, 2005)
• 
  Robert Cambrinus

  Steffan (1 episode, 2009)
• 
  Josef Altin
• 
  Vera Filatova

  Elena (1 episode, 2009)
• 
  Michael Wildman

  Band Member (1 episode, 2003)
• 
  Liz May Brice

  Sally Slater (1 episode, 2007)
• 
  Jim Howick

  Gerard (4 episodes, 2007-2009)
• 
  Tony Wadham

  Pete Preston (1 episode, 2004)
• 
  Cara Horgan

  Aurora (1 episode, 2007)
• 
  Paterson Joseph

  Alan Johnson (12 episodes, 2003-2009)
• 
  Eryl Maynard

  Isobel (1 episode, 2005)
• 
  Neil Fitzmaurice

  Jeff Heaney (15 episodes, 2003-2009)
• 
  Harmage Singh Kalirai

  Mr. Rashid (1 episode, 2004)
• 
  David Mitchell

  Mark Corrigan (36 episodes, 2003-2009)
• 
  Rosie Cavaliero

  Vicky (1 episode, 2005)
• 
  Margaret Cabourn-Smith

  Tash (1 episode, 2008)
• 
  Jessica Claire

  Hans' Girlfriend (1 episode, 2005)
• 
  Katy Brand

  Lucy (1 episode, 2007)
• 
  Tom Chadbon

  Martin (1 episode, 2008)
• 
  Kevin Bishop

  Ollie (1 episode, 2005)
• 
  Cathryn Bradshaw

  Dance Class Leader (1 episode, 2004)