Guest Stars Stephen Wight as DS Steve Galloway Nicholas Farrell as Professor Adrian Cowley Jessica Baglow as DI Ruth Cracknell Karen Bryson as Dr Emily Braithwaite Ahmed Elhaj as Simi Jacobs Pol White as Wilfred Okoye Hervé Goffings as Reverend Kanu Annette Badland as Linda Fletcher Rebecca Atkinson as Dr Benning Luke Mably as Jed Fletcher Sagar Arya as Dr Arnie Rahul Jenny Howe as Coroner Richard Pepper as Dr Mitchell Dandan Liu as Marie Yuen