马克·里朗斯
Mark Rylance
饰：Dr. David Kelly
乔纳森·凯克
Jonathan Cake
饰：Alastair Campbell
艾玛·菲尔丁
Emma Fielding
饰：Susan Watts
丹尼尔·瑞恩
Daniel Ryan
饰：Andrew Gilligan
杰拉尔丁·亚力山大
Geraldine Alexander
饰：Janice Kelly
乔治娜·赖兰斯
Georgina Rylance
饰：Rachel Kelly
James Larkin
饰：Tony Blair
朱利安·沃德姆
Julian Wadham
饰：Jonathan Powell
Philip Bowen
Philip Bowen
饰：Sir Kevin Tebbit
巴纳比·凯
Barnaby Kay
饰：Tom Kelly
汤姆·比尔德
Tom Beard
饰：Godric Smith
达伦·莫菲特
Darren Morfitt
饰：Daniel Pruce
Martin Maynard
Martin Maynard
饰：Paul Hammill
Geoffrey Freshwater
Geoffrey Freshwater
饰：Andrew MacKinlay
Shaughan Seymour
饰：Richard Ottaway
詹姆斯·奥布里
James Aubrey
饰：David Chidgey
Jasper Jacob
Jasper Jacob
饰：Greg Pope
杰伊·维利尔斯
Jay Villiers
饰：Geoff Hoon
乔纳森·阿里斯
Jonathan Aris
饰：Bryan Wells
Patrick Pearson
饰：Patrick Lamb
Richard Huw
Richard Huw
饰：Richard Hatfield
多米尼克·杰普科特
Dominic Jephcott
饰：Martin Howard
Celia Robertson
饰：Kate Wilson
Peter Forbes
Peter Forbes
饰：Wing Commander John Clark
迈克尔·科克伦
Michael Cochrane
饰：Sir Richard Dearlove
理查德·霍普
Richard Hope
饰：Richard Sambrook
本·迈尔斯
Ben Miles
饰：Kevin Marsh
Kate Miles
Kate Miles
饰：Miranda Holt
阿里克斯·瑞德
Alex Reid
饰：Claire
David Prosho
David Prosho
饰：Steve Haws (as Dave Prosho)
霍华德·沃德
Howard Ward
饰：Mark Ridsdale
威廉·阿姆斯壮
William Armstrong
饰：Carl Klein
Sasha Behar
饰：Nan
凯万·诺瓦克
Kayvan Novak
饰：Qasim Hamdani
Suzanna Nour
Suzanna Nour
饰：Dr. Rihab Taha al Azawi
Younes Megri
饰：General Amin
Basel Al-Jibouri
Basel Al-Jibouri
饰：Interpreter
Nigel Hastings
Nigel Hastings
饰：Nick Radford
比尔·斯图尔特
Bill Stewart
饰：Barry Trent
乔伊·布鲁克
Joy Brook
饰：Alison Blackshaw (uncredited)
Antony Byrne
Antony Byrne
饰：Mark Damazer (uncredited)
Sam Dale
Sam Dale
饰：John Humphrys (uncredited)
Richard Howard
饰：Donald Anderson (uncredited)
斯特华特·豪森
Stewart Howson
饰：Fabian Hamilton (uncredited)
Stephanie Langton
Stephanie Langton
饰：Ellen Kelly (uncredited)
Stuart Nurse
饰：Jack Straw (uncredited)
埃德·皮尔斯
Ed Pearce
饰：Weapons Inspector (uncredited)
约翰·彼得斯
John Peters
饰：Bill Olner (uncredited)
Jeff Peterson
Jeff Peterson
饰：US Marine Officer (uncredited)
皮普·托伦斯
Pip Torrens
饰：John Scarlett