Peter Moffat Creator Jeremy Jones Joe Martin Actor Jessie Buckley Honor Martin Actor Ben Miles Actor Stephen Campbell Moore Ed Actor Essie Davis Actress Actor Richard Dillane Harvey Tilbrook Actor Amanda Drew Mary Markham Actor Ouidad Elma Yusra Actor Toby Woolf George Markham Actor Kal Naga The Informant Actor Tom Glynn-Carney Actor Louis Greatorex Actor Aymen Hamdouchi Actor Jessica Raine Alison Laithwaite Actor Chris Reilly Alex Baxter Actor Kevin Sutton Actor Paul Tinto Actor Andrew Havill Dr. Russell Actor Stuart Graham Ronnie Carter Actor Amira Ghazalla Alima Saeed Actor Margery Bone Executive Producer Elwen Rowlands Executive Producer George Faber Executive Producer Mark Pybus Executive Producer Matthew Read Executive Producer Jonny Campbell Director