Guest Stars Zoe Tapper as Katy Sutcliffe Danny Webb as DS Rory Maxwell Richie Campbell as Liam Sutcliffe Shelley Conn as DI Vanessa Harmon Jamie Flatters as Luke Earlham Katherine Kelly as DI Karen Renton Amy Nuttall as Winnie Peterson Sam Spruell as Oliver Graham Kieran Bew as Ian Davis Howard Charles as Carl Peterson Oliver Maltman as Nick Piller Jack Colgrave Hirst as Greg Maxwell Alex Delescu as Eric Security Guard Dan Nicholson as Dr. Charlie Jensen Sian Clifford as Ruby Allen David Kennedy as Reporter Austin Dean Graham as Journalist Tomi Sunmonu as Receptionist