Calificación
Reparto

Derek Jacobi
Alan Turing

Alun Armstrong
Mick Ross

Blake Ritson
Christopher Morcom

Prunella Scales
Sara Turing

Harold Pinter
John Smith

Julian Kerridge
Ron Miller

Richard Johnson
Dilwyn 'Dilly' Knox

Amanda Root
Patricia 'Pat' Green

William Mannering
Young Alan Turing