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 Steven Meo as DI Paul Stokes Meera Syal as Elizabeth Churchland Clive Russell as Clifford Major Beau Fowler as Pigtails Richard Ayoade voices The Voice of Brian Precious Mustapha as Roxy Millikan
