Guest Stars Anna Maxwell Martin as Kelly Major Rosie Cavaliero as DCS Dennett Amanda Payton as Dr. Alison Parfit Tracy-Ann Oberman as Helen Chalmers Emily Lloyd-Saini as DI Ryle Steve Oram as DI Gilbert Michelle Greenidge as PC Williams (not Judy) Anna Leong Brophy as The Voice of A.L. David Shelley as Priest Faith Edwards as Civil Servant Richard Pepple as Kristof Leila Hoffman as Mrs. Latimer
