Guest Stars Anna Maxwell Martin as Janine Shaun Parkes as Paul Okebu Colin Mace as Peter Stanley 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 Peter Polycarpou as Louis Charalambous Tim Sullivan as Press Solicitor Glynn Sweet as Clifton College Staff 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 Claire Oberman as Tabak's Mother 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 Uncredited Steve Coogan as Himself