• 
  Indira Varma

  Suzanne Daley
• 
  Michael Landes

  Gil Raymond
• 
  Tamsin Greig

  Alice Chenery
• 
  Sheridan Smith

  Cleo Martin
• 
  Georgie Glen

  Woman in Store (1 episode, 2005)
• 
  Louise Fullerton

  Young Mother (1 episode, 2005)
• 
  Ron Donachie

  Inspector Harbin (1 episode, 2008)
• 
  Kerry Shale

  Clark Kramer (1 episode, 2005)

• 
  Olivia Colman

  Penny (1 episode, 2008)
• 
  Adam Deacon

  Hooded Thief (1 episode, 2008)
• 
  Trudie Styler

  Irene (5 episodes, 2005)
• 
  David Ren

  Phil  (2 episodes, 2005-2008)
• 
  Andy Gatjen

  Ulrich (1 episode, 2008)
• 
  John Fortune

  Geoffrey Strayhorn Q.C. (1 episode, 2005)
• 
  Darren Boyd

  Adam Coates (1 episode, 2005)

• 
  Simon Kassianides

  Ileus (1 episode, 2008)
• 
  Bill Bailey

  Elliot Anderson (1 episode, 2008)
• 
  Sanjeev Bhaskar

  Mitch (1 episode, 2008)
• 
  Justin Edwards

  Burgess (1 episode, 2008)
• 
  Simon Day

  Wolf (1 episode, 2008)
• 
  Ronnie Corbett

  Gordon Bexter (1 episode, 2008)
• 
  Geraldine Alexander

  Laura Kelly (1 episode, 2005)
• 
  Jaime Murray

  Natalie Brown (1 episode, 2005)
• 
  Mackenzie Crook

  Marty Cady (1 episode, 2008)
• 
  Stewart Wright

  Jeff (1 episode, 2008)
• 
  Alex Hassell

  Jake Randall (1 episode, 2008)
• 
  Sarah Hadland

  Sarah (1 episode, 2008)
• 
  River George

  DB Heather  (2 episodes, 2005-2008)
• 
  Elizabeth Spriggs

  Penny's mother (1 episode, 2008)
• 
  Jenny Howe

  Mrs. Blunt (1 episode, 2005)
• 
  Mark Donovan

  Bernardo (1 episode, 2005)
• 
  Lee Montague

  Larry (1 episode, 2008)
• 
  Chris Wilson

  Armed MI5 Officer (1 episode, 2008)
• 
  Elisabeth Dermot Walsh

  Roberta Samms (1 episode, 2005)
• 
  Christine Stephen-Daly

  Kirsty (1 episode, 2008)
• 
  Joanna Page

  Heather (1 episode, 2008)
• 
  Anthony Debaeck

  French Lover (1 episode, 2005)
• 
  Rosalind Halstead

  Rochelle Tandy (1 episode, 2005)
• 
  James Weber Brown

  Neil (1 episode, 2008)
• 
  Andy Taylor

  Dr. Fishbein (1 episode, 2008)
• 
  Jeremy Clyde

  Larry (1 episode, 2008)
• 
  Mina Anwar

  Antonia (1 episode, 2008)
• 
  Adam James

  Guy Cassidy (1 episode, 2005)
• 
  Joanna Bending

  Dilly (1 episode, 2008)
• 
  Bridget McConnell

  Mrs. Angela Bisswell (1 episode, 2005)
• 
  Ben Lloyd-Hughes

  Teenage Boy (1 episode, 2005)
• 
  Pierre Mascolo

  Gavin (1 episode, 2008)
• 
  Charlotte Avery

  Davina (1 episode, 2008)
• 
  Christine Adams

  Vanessa (1 episode, 2005)
• 
  Amelia Curtis

  Fae Maddison (5 episodes, 2008)
• 
  Adam Bond

  Guy at Cafe (unknown episodes, 2007)
• 
  Stephen Modell

  Passerby (1 episode, 2008)
• 
  Suzanne Bertish

  Sally (1 episode, 2005)
• 
  Kevin Bishop

  Billy (1 episode, 2005)
• 
  Rupert Degas

  Garth (1 episode, 2005)
• 
  Olivia Poulet

  Julie Pirelli (1 episode, 2005)
• 
  Owen Brenman

  Lloyd Drewitt
• 
  Montserrat Lombard

  Milly Russell