Guest Stars George Anton as Dr. Roddy Armitage Diana Quick as Judge Mary Hall Hazel Ellerby as Pathologist Heather Beatie Edney as Megan Parnell Oliver Dimsdale as Dominic Peck Ashley McGuire as Simone Lewis Luke Bryant as Lee Lewis Joe Mason as Aaron Lewis Julia Montgomery Brown as Dr. Elizabeth Arlberg Robert Horwell as Craig Parnell Jane Wheldon as Dr. Elaine Schreiber Andy Linden as Dom Mason Jean Trend as Eleanor Green Avin Shah as Sanjit Chatterjee Geoffrey Leesley as Mike Harris Clara Onyemere as Denise Swanson Thomas Aldridge as Reece Uncredited Robert Glenister voices Opening Narration