Guest Stars Anna Maxwell Martin as Janine Colin Mace as Peter Stanley Shaun Parkes as Paul Okebu Ben Caplan as Charles Chapman Joe Sims as Vincent Tabak Andrew Hilton as Richard Anna Gorham as Charles and Melissa's Daughter Marcus May as Charles and Melissa's Son Carla Turner as Joanna Yeates Matthew Barker as Greg Reardon Jennifer Higham as Tanja Jonathan Newth as Geoffrey Nathalie Armin as Melissa Chapman Flip Webster as Susan Richard Hope as Exam Board Official Claire Oberman as Tabak's Mother Tim Sullivan as Press Solicitor Michael Slator as Press Solicitor Matthew Firth as Press Solicitor Neil Constable as Press Solicitor Martin Whatley as Legal Associate Alys Torrance as Legal Associate Clive Linthorne as Chaplain Glynn Sweet as Clifton College Staff Roger Michell as Press Solicitor David Shackleton as Press Solicitor Clive Panto as Press Solicitor Neal Foster as Press Solicitor John Walters as Clifton College Staff Katharine Rogers as DC Carrie Thomas Peter Polycarpou as Louis Charalambous Uncredited Steve Coogan as Himself