Benedict CumberbatchAlan Turing
Keira KnightleyJoan Clarke
Matthew GoodeHugh Alexander
Rory KinnearDetective Robert Nock
Allen LeechJohn Cairncross
Matthew BeardPeter Hilton
Charles DanceCommander Denniston
Mark StrongStewart Menzies
James NorthcoteJack Good
Tom Goodman-HillSergeant Staehl
Steven WaddingtonSuperintendent Smith
Ilan GoodmanKeith Furman
Jack TarltonCharles Richards
Alex LawtherYoung Alan Turing
Jack BannonChristopher Morcom
Tuppence MiddletonHelen
Dominik CharmanSherborne Student 1
James G. NunnSherborne Student 2
Charlie MantonSherborne Student 3
David CharkhamJoan's Father
Victoria WicksJoan's Mother
Andrew HavillTeacher
Laurence KennedyHeadmaster
Tim van EykenMI6 Agent
Viv WeatherallMilitary Policeman (as Will Bowden)
Miranda BellMargaret
Tim SteedElectrical Assistant
Bartosz WandrykowCrossword Enthusiast
Lese Asquith-CoeMI6 Agent (uncredited)
Hayley Joanne BaconWoman in Crowd (uncredited)
Lauren BeachamRAF Wren (uncredited)
Ingrid BenussiDancer (uncredited)
Nicholas BlattMinistry Man (uncredited)
Jack BrashEvacuee (uncredited)
Ancuta BreabanWren (uncredited)
Alex Corbet BurcherDancer (uncredited)
Grace CalderAssistant Wren (uncredited)
Richard CampbellCrossword Man in Pub (uncredited)
Daniel ChappleMI6 Agent (uncredited)
Lisa ColquhounJoan Clarke's Friend (uncredited)
Alexander CooperBletchley Park Agent (uncredited)
Leigh DentPasserby (uncredited)
Esther EdenWW2 Wren (uncredited)
Sam ExleyMilitary Policeman 3 (uncredited)
Ben FarrowMilitary Police (uncredited)
Mike FirthCrossword Enthusiast (uncredited)
Hannah FlynnWren (uncredited)
James GardSchool Boy (uncredited)
Guna GultniecePasserby (uncredited)
Benjamin HardiePaperboy (uncredited)
Oscar HattonEvacuee (uncredited)
Luke HopeMI6 Agent (uncredited)
Vera HortonNunn (uncredited)
Vincent IdearsonMI6 Agent (uncredited)
Denis KoroshkoCivilian (uncredited)
Debra Leigh-TaylorEvacuee (uncredited)
Stuart MatthewsBletchley Park Operative (uncredited)
Amber-Rose MayJoan Clarke's Friend (uncredited)
Samantha MoranWren (uncredited)
Adam NowellTechnician (uncredited)
Joseph OliveiraMI6 Agent (uncredited)
Harry Leonard ParkinsonEvacuee (uncredited)
John RedmannYoung Officer (uncredited)
David G. RobinsonPolice Sergeant White (uncredited)
Alice TapfieldWren (uncredited)
Mark UnderwoodCrossword Man (uncredited)
Nicola-Jayne WellsFirst Aid Nurse (uncredited)
Josh WichardGerman Pilot (uncredited)
AAAADirected by
Graham MooreScreenplay
Óscar FauraDirector of photography
Maria DjurkovicProduction design
Rebecca MiltonArt direction
Marco Anton RestivoArt direction
Sammy SheldonCostumes
Alexandre DesplatOriginal music
William GoldenbergEditing
Nora GrossmanProducer
Graham MooreExecutive producer
Ido OstrowskyProducer
Teddy SchwarzmanProducer
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