;Britons •
David Mitchell as Keith Davis, the British Ambassador to Tazbekistan •
Robert Webb as Neil Tilly, the
Deputy Head of Mission •
Keeley Hawes as Jennifer, the Ambassador's wife and a physician •
Matthew Macfadyen as the
Foreign Office official (known as POD, for "Prince of Darkness") •
Susan Lynch as Caitlin, the Head of Consular Affairs •
Amara Karan as Isabel, the Trade and Political Secretary •
Michael Smiley as Mr. Jackson (also known as "Mister 21"), a Foreign Office interrogation specialist •
Henry Lloyd-Hughes as Simon Broughton, a human rights activist •
Elliot Cowan as Stephen Pembridge, a solo performance actor •
Tom Hollander as Prince Mark, a minor
British royal •
Julian Lewis Jones as Mike Treasure, Prince Mark's valet and "security man" ;Tazbekis •
Velibor Topic as Svecko, an Interior Ministry official •
Yigal Naor as President Karzak of the Republic of Tazbekistan • Richard Katz as Jamatt, second-in-charge to Karzak •
Natalia Tena as Tanya, Neil's Tazbek girlfriend and a barmaid • George Lasha as the tall surveillance man • Sevan Stephan as the short surveillance man • Danny Scheinmann as a guide • Krystian Godlewski as Amil Zarifi, a dissident • Umit Ulgen as Oybek Yerzhan, Tanya's brother and a rebel •
Lydia Leonard as Fergana Karzak, the daughter of President Karzak ;Embassy Tazbekis •
Shivani Ghai as Natalia, the Head of Public Relations •
Debbie Chazen as Ludmilla, the embassy housekeeper • Andy Lucas as Sergei, the embassy driver •
Jenny Galloway as Mrs. Petrova, the ambassador's Tazbeki language tutor ;Others •
Oliver Dimsdale as the French Ambassador to Tazbekistan •
Lachele Carl as Petra, the American Ambassador to Tazbekistan ==Production==