Guest Stars Nicholas Gleaves as Roger Penhaligon Paul Ready as Rob Macdonald Richard Riddell as Tom Fenton Nick Robinson as Himself Anjli Mohindra as Nadia Ali Bella Padden as Ella Budd Matthew Stagg as Charlie Budd Justin Webb as Himself Martha Kearney as Herself Rosie Jones as Police Officer Laura Kuenssberg as Herself Mishal Husain as Herself Daniel Moore as SO15 Officer David Westhead as Prime Minister John Vosler Sarah Malin as Nadia's Solicitor Tina Chiang as Surgical Administrator Julian Firth as Rob's Solicitor Bailey Patrick as SO15 Officer Gary Pillai as Security Manager Annita McVeigh as Herself Simon McCoy as Himself Jo Jasani as Reporter Sheyi Akindele as Reporter Seamus Casey as Trauma Surgeon