Guest Stars Jack Deam as DC Ken Blackstone Lorraine Burroughs as DS Winsome Jackman Colin Tierney as CS Rydell Tom Shaw as DC Kevin Templeton John Light as Mark Keane Tamzin Merchant as Miranda John Bowe as Dr Patrick Aspern Marc Finn as Geoff Hamilton Jade Williams as Gerry Siddons Rakhee Thakrar as Lab Assistant Gary Cargill as Jake McMahon Leah Bracknell as Maria