Guest Stars Amber Jean Rowan as Kaley Robbie Gee as DCI Pike Rebekah Wainwright as Molly Ryan Osi Okerafor as Philip Anthony Stewart Head as James Sujaya Dasgupta as Veena Patel Katie Clarkson-Hill as Charlotte Crockleby Jonathan Howard as Prison Guard Josh Juliet Howland as Dr. Caldwell Sam O'Mahony as Declan Ryan