Gary Oldman Winston Churchill
Kristin Scott Thomas Clemmie
Lily James Elizabeth Layton
Samuel West Sir Anthony Eden
Dan Channing-Williams First Assistant Director
David Strathairn President Roosevelt (voice)
Carlos De Carvalho Second Unit Director of Photography
Stephen Dillane Viscount Halifax
Ben Mendelsohn King George VI
Pip Torrens BBC Producer
Joshua James W D Wilkinson (Secretary #2)
Faye Marsay Sybil
Tamara Catlin-Birch Art Department Coordinator, Set Decorating Coordinator
Joe Wright Director
Charley Palmer Rothwell Christopher Wilson (Photographer)
Valerio Bonelli Editor
Marc-Olivier Rouleau Pipeline Technical Director
Eric Fellner Producer
Adrian Rawlins Air Chief Marshal Dowding
Josh O'Neill Carpenter
Ronald Pickup Neville Chamberlain
Anne-Marie Ouellet Visual Effects Production Assistant
David Bamber Admiral Ramsay
David Schofield Clement Atlee
Mark Appleby ADR Mixer
Chuck Finch Gaffer
Nicholas Jones Sir John Simon
Tim Bevan Producer
Jina Jay Casting
Diana Choi Wigmaker
Bronte Carmichael Young Girl on Tube
Benjamin Whitrow Sir Samuel Hoare
Johnny Otto Member of Parliament (uncredited)
Anthony McCarten Screenplay, Producer
Hilton McRae Arthur Greenwood
Jamie Edgell Stunt Coordinator
Malcolm Storry General Ironside
Cristian Knight Stunts
Joe Armstrong John Evans
Patsy Ferran Maid
Paul Ridley House of Commons Speaker
Dario Marianelli Original Music Composer
Jeremy Braben Aerial Director of Photography
James Eeles Maurice Baker
Philip Martin Brown Sawyers
Brian Pettifer Lord Kingsley Wood
Kazu Hiro Hair Designer, Prosthetic Makeup Artist
Sarah Flind Cook
Dave Wells Best Boy Grip
Craig Berkey Sound Re-Recording Mixer, Supervising Sound Editor
Bob Kretschmer Wigmaker
Jeff Gomillion ADR Mixer
Des Whelan Camera Operator
James Collins Draughtsman
Jeremy Child Lord Stanhope
Jacqueline Durran Costume Design
Hannah Steele Abigail Walker
Demetri Goritsas Cabinet Secretary Bridges
Leonard Woodcock Stunts
Imogen King Teenage Girl at Tube Map
Anna Burnett Pamela Churchill
Douglas Urbanski Producer
Nick Gottschalk Supervising Art Director
James Harkness AD Nicholl (Secretary #1)
Lucy Sibbick Prosthetic Makeup Artist
John Casali Production Sound Mixer
Bruno Delbonnel Director of Photography
Vanessa Baker ADR Voice Casting
Paul Carter Sound Designer
Flora Moody Key Makeup Artist, Key Hair Stylist
Chris Murphy Boom Operator
Johnathan Rush Sound Mix Technician