Gavin Hood Director, Screenwriter Keira Knightley Katharine Gun Actor Matt Smith Martin Bright Actor Matthew Goode Peter Beaumont Actor Rhys Ifans Ed Vulliamy Actor Adam Bakri Yasar Gun Actor Ralph Fiennes Ben Emmerson QC Actor Indira Varma Shami Chakrabarti Actor Conleth Hill Roger Alton Actor MyAnna Buring Jasmine Actor Hattie Morahan Yvonne Ridley Actor Tamsin Greig Elizabeth Wilmshurst Actor Sara Bernstein Screenwriter Gregory Bernstein Screenwriter Claudia Bluemhuber Executive Producer Mark Gordon Executive Producer Hugo Heppell Executive Producer Matt Jackson Executive Producer Lucy Wainwright Executive Producer Sara Smith Executive Producer Ged Doherty Producer Elizabeth Fowler Producer Melissa Shiyu Zuo Producer Melissa Zuo Producer Florian Hoffmeister Cinematographer Megan Gill Film Editing Paul Hepker Original Music Mark Kilian Original Music