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 Fraser Risk as Max Sutcliffe Ethan Risk as Olly Sutcliffe Warren Brown as Tom Bailey Rita McDonald Damper as Deputy Head Oliver Maltman as Nick Piller Chu Omambala as Semer Finn Bennett as Ewen Akbar Kurtha as Birav Suri Adjoa Andoh as Margaret Rust Tsion Habte as Makeda Kidane Peter Davison as Denis Walters Franc Ashman as SARC Nurse Forensic Examiner Steven O'Neill as Andrew's Solicitor Fatah Ghedi as Postman Shanice Sewell as Nurse David Avery as Officer Brown Vanessa Hehir as Sara Dejan Bucin as Man Being Chased Genevieve Barr as Dr. Hartley Beverley Klein as Michaela Alistair Donegan as Park Ranger Mike Rosie Nicholls as Coffee Shop Woman