Forensic pathologist Dr. Sam Ryan returns to Cambridge to take up a teaching assignment and to work for the police as required.
Lesley Dunlop - Marion Wallace Jelena Budimir - Prisoner 1 Carl Hillsden - Michael Wallace Sophie Manning - Sarah Crew Adam Ratcliffe - Dean Crew Amanda Burton - Sam Ryan William Armstrong - Trevor Stewart Alec Linstead - Professor Jenkins Barney Craig - Gary Phillips Kelly Hunter - Ronnie Crew Roger Llewellyn - Priest Renata Heinen - Waitress Rebecca Craig - Jenny Stewart Janice Acquah - Marcia Evans John McGlynn - Tom Adams Ruth Gemmell - Kerry Cox Clare Higgins - D.S. Farmer Tom Chadbon - P.C. Coleman Milo Twomey - P.C. North Sam Parks - Fred Dale Pat Keen - Mrs. Phillips Ruth McCabe - Wyn Ryan Doreen Hepburn - Beryl Ryan Matthew Steer - Ricky Ryan Maryann Turner - Jean Charon Bourke - Prisoner 2 Peter Geddis - Ken Peter Whitbread - Coroner Oliver Montgomery - Solicitor Mark Chapman - Forensic Officer Jeremy Paxman - Self (archive footage) John Westwood - Forensic Officer
