Guest Stars Paul Ready as Rob Macdonald Richard Riddell as Tom Fenton Nicholas Gleaves as Roger Penhaligon Nick Robinson as Himself Sophie Raworth as Herself Bella Padden as Ella Budd Justin Webb as Himself Matthew Stagg as Charlie Budd Tom Brooke as Andrew Apsted Frank Gardner as Himself David Westhead as Prime Minister John Vosler Claire-Louise Cordwell as PC Kimberley Knowles Vicki Young as Herself Shubham Saraf as Tahir Mahmood Susan Rae as Herself Gordon Corera as Himself John Pienaar as Himself Timothy Knightley as SO15 Control Mark Holgate as ARV Leader Jonathan Nyati as MASTS Darren Clarke as Security Guard