• 
  Sandy Johnson

  regizor

• 
  Joss Ackland

  Mr. John Narbutowicz (1 episode, 2007)
• 
  Paul Kaye

  Alan McEwan (3 episodes, 2007-2009)
• 
  Stephen Fry

  Peter Kingdom
• 
  Karl Davies

  Lyle Anderson
• 
  Celia Imrie

  Gloria Millington
• 
  Sophie Winkleman

  Kate
• 
  Kelly Campbell

  Honor O'Sullivan (4 episodes, 2007-2008)

• 
  Dermot Crowley

  Mr. Matthews (1 episode, 2008)
• 
  Stephen Marcus

  Hill (3 episodes, 2007)
• 
  Ann Firbank

  Grace (1 episode, 2008)
• 
  Trevor Peacock

  Tom Case (1 episode, 2007)
• 
  Tim Bentinck

  Judge Harrison (2 episodes, 2009)
• 
  Meera Syal

  Headteacher (1 episode, 2007)
• 
  Anna Massey

  Winifred (1 episode, 2009)

• 
  Hermione Norris

  Beatrice Kingdom (16 episodes, 2007-2009)
• 
  Tony Slattery

  Sidney Snell (18 episodes, 2007-2009)
• 
  Carolyn Pickles

  Patricia Wright (1 episode, 2008)
• 
  Miriam Margolyes

  Henny (1 episode, 2008)
• 
  Rory Bremner

  Vicar (1 episode, 2007)
• 
  Kate O'Flynn

  Emily Cartwright (5 episodes, 2009)
• 
  Neil Dudgeon

  Terry (1 episode, 2009)
• 
  Chris Wilson

  Lecturer (1 episode, 2008)
• 
  Pax Baldwin

  Dan (1 episode, 2009)
• 
  Tobias Menzies

  David Morston (1 episode, 2009)
• 
  Elizabeth Goram-Smith

  Cambridge student in library  (4 episodes, 2008-2009)
• 
  Polly Adams

  Amelia (1 episode, 2009)
• 
  Richard Bremmer

  Stan Geddick (1 episode, 2009)
• 
  Martin Ballantyne

  Jason  (4 episodes, 2007-2009)
• 
  John Nettleton

  Mr Macavoy (1 episode, 2008)
• 
  Paul Copley

  Vincent Straker (1 episode, 2008)
• 
  Richard Wilson

  Professor Barkway (2 episodes, 2007-2008)
• 
  Neil Stuke

  Damien (1 episode, 2007)
• 
  Robert Bathurst

  Philip Collins (1 episode, 2007)
• 
  Diane Fletcher

  Cynthia (2 episodes, 2008)
• 
  Claire Skinner

  Brenda Collins (1 episode, 2007)
• 
  James Phelps

  Callum Anderson (1 episode, 2009)
• 
  Phyllida Law

  Aunt Auriel (16 episodes, 2007-2009)
• 
  Jaye Griffiths

  Dr. Nicky Laker (1 episode, 2009)
• 
  Nicholas Rowe

  Robert Morston (1 episode, 2009)
• 
  Daniel Hill

  Mr. Earnshaw Jnr. (1 episode, 2009)
• 
  Harry Peacock

  Tom Case Jnr (1 episode, 2007)
• 
  Peter Sallis

  Cyril (1 episode, 2009)
• 
  Adrian Scarborough

  Jeff (1 episode, 2009)
• 
  Richard Briers

  Jim Wright (1 episode, 2008)
• 
  Larissa Wilson

  Donna (1 episode, 2009)
• 
  Gerard Horan

  D.C. Yelland (14 episodes, 2007-2009)
• 
  June Whitfield

  Mrs. Earnshaw (1 episode, 2009)
• 
  Diana Payan

  Mrs. Ashworth (1 episode, 2007)
• 
  Pippa Haywood

  Mrs. Anderson (2 episodes, 2009)
• 
  Alan Stocks

  Leo (1 episode, 2007)
• 
  Angus Imrie

  Scott Millington (6 episodes, 2007-2009)
• 
  Steve Pemberton

  Jack Thriplow (1 episode, 2007)
• 
  John Thomson

  Nigel Pearson (6 episodes, 2008-2009)
• 
  Jack Dee

  Judge Jeremy Harding (2 episodes, 2009)
• 
  Dominic Mafham

  Simon Kingdom
• 
  Tom Fisher

  Ted