Guest Stars Anna Maxwell Martin as Kelly Major Rosie Cavaliero as DCS Dennett Amanda Payton as Dr. Alison Parfit Michelle Greenidge as DS Judith Papastathopoulos Tracy-Ann Oberman as Helen Chalmers Richard Gadd as Liam Cleasby Michael Armstrong as Officer Mike Vinette Robinson as Professor Sarah McAllister Sasha Behar as Elizabeth Churchland Bleu Landau as Reece Idris Balogun as Courier Greg McKenzie as Reporter
