Guest Stars Kemi-Bo Jacobs as Yazz Hobson Mark Flitton as DS Jim Conroy Charles Babalola as DS Jesse Rawlins Nicola Stuart-Hill as Technician Alun Raglan as Robert Tarl Joanna Hole as Dr Erica Young Nicole Arumugam as Nurse Nicholas Cass as Ryan Clarke Rachael Spence as Female Detective Isabel Shanahan as Phoebe Tarl