Cast
Benedict Cumberbatchas Alan Turing
Keira Knightleyas Joan Clarke
Matthew Goodeas Hugh Alexander
Rory Kinnearas Detective Robert Nock
Allen Leechas John Cairncross
Matthew Beardas Peter Hilton
Charles Danceas Commander Denniston
Mark Strongas Stewart Menzies
James Northcoteas Jack Good
Tom Goodman-Hillas Sergeant Staehl