Keira Knightley Joan Clarke
Benedict Cumberbatch Alan Turing
Charles Dance Commander Denniston
Matthew Goode Hugh Alexander
Mark Strong Stewart Menzies
James G. Nunn Sherborne Student 2
Marco Anton Restivo Art Direction
Tom Goodman-Hill Sergeant Staehl
Katie Anna Brady VFX Artist
Nina Gold Casting
Debra Leigh-Taylor Evacuee (uncredited)
Tuppence Middleton Helen
Allen Leech John Cairncross
Rory Kinnear Detective Robert Nock
Alex Lawther Young Alan Turing
Steven Waddington Superintendent Smith
Chris Lyons Special Effects Makeup Artist
Peter Burgis Foley
Alexandre Desplat Original Music Composer
Matthew Beard Peter Hilton
Matt Curtis Title Designer
James Northcote Jack Good
Andrew Havill Teacher
Victoria Wicks Joan's Mother
Morten Tyldum Director
William Goldenberg Editor
John Midgley Sound Recordist
Jack Bannon Christopher Morcom
Levan Doran Stunts
Tim Steed Electrical Assistant
Joseph Oliveira MI6 Agent (uncredited)
Lee Walpole Supervising Sound Editor
Stuart Hilliker Sound Re-Recording Mixer
Teddy Schwarzman Producer
Kirsty Whalley Music Editor
Grace Calder Assistant Wren (uncredited)
Jack English Still Photographer
Dennis Good Civilian (uncredited)
Martin Jensen Sound Re-Recording Mixer
Peter Wignall Steadicam Operator
Lauren Briggs-Miller Assistant Art Director
Steven Hall Second Unit Director of Photography
Beverly Winston Script Supervisor
Maria Djurkovic Production Design
Peter Heslop Co-Producer
Sarah Shepherd Dialect Coach
Jonathan Collard Digital Intermediate
Phil Booth First Assistant Director
Nick Dent Supervising Art Director
Graham Moore Writer, Executive Producer
Alexander Cooper Bletchley Park Agent (uncredited)
Andy Kennedy Sound Designer
Sammy Sheldon Costume Design
Lucy Ainsworth-Taylor Visual Effects Producer
Nicky Ackland-Snow Construction Coordinator
Denise Kum Makeup Artist
Eran Barnea Visual Effects Supervisor
Gary Hutchings Key Grip
Stuart Matthews Bletchley Park Operative (uncredited)
Marc Gómez del Moral "B" Camera Operator
Roo Maurice Makeup Artist
Miranda Bell Margaret
Angela Barson Visual Effects Supervisor
Tatiana Macdonald Set Decoration
Crispin Reece Second Unit Director
Charlie Manton Sherborne Student 3
Will Bowden Military Policeman
Mark Underwood Crossword Man (uncredited)
Amy Riley Makeup Artist
Rebecca Milton Art Direction
Suzie Shearer Production Manager
Joshua Wichard German Spy Plane Pilot (uncredited)