irst broadcast 9th10th January 2014. br br Forensic evidence given by Nikki contributes to the release on appeal of disturbed ex-soldier David Bennetto.br br Emilia Fox - Dr. Nikki Alexander br David Caves - Jack Hodgson br Richard Lintern - Dr. Thomas Chamberlain br Michael Socha - David Bennetto br Tobias Menzies - Greg Walker br Mark Tandy - QC Harry Fraser br Chanel Cresswell - Jill Bond br George Russo - Mark Bond br Lynne Miller - Lady Justice Lloyd br Janine Wood - QC Elizabeth Dunn br Lorraine Ashbourne - DI Rachel Klein br Alister Cameron - Dr. Bell br Liz Carr - Clarissa Mullery br Steve Toussaint - Richard Parkwood br Rhiannon Lewis - Young Jill br Patrick Higgins - Young David br Richard Oldham - Bill Bennetto br Aaron McCusker - DS Adam Kemp br Michael Gould - Peter Masham br Charles Furness - Charlie Masham br Jonny Freeman - Callum Jordan br Laurence Belcher - Robbie Masham br Ravi Aujla - Dr.