Guest Stars Pearl Mackie as Alysse Tim Delap as Byron Kenichiro Thomson as Martin Jess Chanliau as Ronnie Buckhurst Penny Downie as Frances Munning Elijah Isaiah Cook as Theo (CIA Officer) Freddie Stabb as Lucinda Maggie Daniels as Louisa Olivia Nita as Mitzka Dana Haqjoo as Farid Namazi Tomini Babs as Medic 2 Louise Coles as Photographer James Beaumont as Medic 1 Tim Berrington as Tyler Randall Sharif Dorani as Parham Hajjar
