Emilia Fox Dr Nikki Alexander Actor David Caves Jack Hodgson Actor Jason Wong Adam Yuen Actor Owen McDonnell Ryan Actor Elliott Tittensor Scott Weston Actor Genesis Lynea Simone Tyler Actor Jack Bandeira Ollie Actor Sagar Arya Dr Arnie Rahul Actor Richard Durden Conor Actor Rhiannon May Cara Connelly Actor Pauline McLynn Mary Thorpe Actor Ahmed Elhaj Simi Jacobs Actor Kevin Eldon DI Dan Mason Actor Sîan Phillips Beattie Elleston Actor Divian Ladwa Leon Tovey Actor Ann Mitchell Molly Trask Actor Luke Mably Jed Fletcher Actor Lorraine Ashbourne Michelle Actor Caroline Sheen DI Meredith Hughes Actor Richard Pepper Dr. Mitchell Guest Star Gordon Anderson Director Marteinn Þórisson Writer Pete Hambly Writer Michael Crompton Writer Caroline Levy Executive Producer Lena Rae Writer Paulette Randall Director Lawrence Till Director, Executive Producer Priscilla Parish Executive Producer Nick Lambon Producer Susan Everett Writer Delyth Thomas Director