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 Oliver Maltman as Nick Piller Rita McDonald Damper as Deputy Head Chu Omambala as Semer Finn Bennett as Ewen Akbar Kurtha as Birav Suri Tsion Habte as Makeda Kidane Franc Ashman as SARC Nurse Forensic Examiner Steven O'Neill as Andrew's Solicitor Freddie Greaves as Kayaker Donna Banya as Rebecca Andrew Greenough as Cab Driver Jill Buchanan as English Teacher Talitha Lindo as Claire Douglas Bunn as Police Officer Conrad Peters as David Arthur Wilde as Hospital Porter James Baller as School Friend