Ed Stoppard

Alan Turing

Henry Goodman

Franz Greenbaum

Paul McGann

Himself - Narrator (voice)

Asa Briggs

Himself - Codebreaker, Bletchley Park

Jean Valentine

Herself - WRNS and Bombe Operator, Bletchley Park

David Leavitt

Himself - Alan Turing's Biographer

Rolf Noskwith

Himself - Codebreaker, Bletchley Park

Dermot Turing

Himself - Alan Turing's Nephew

Christopher Morcom

Himself - Christopher Morcom's Nephew (as Christopher Morcom QC)

Ian Stewart

Himself - University of Warwick (as Professor Ian Stewart)

Clare Beavan

Director

Nic Stacey

Director

Clare Beavan

Guión

Craig Warner

Guión

Rob Goldie

Director de Fotografía

Andy Jackson

Director de Fotografía

Edward White

Compositor de la Música Original, Música

Clare Beavan

Productor

Jennifer Beamish

Productor

Paul Sen

Productor Ejecutivo

Ryan Greenawalt

Productor Ejecutivo

Patrick Sammon

Productor Ejecutivo