Bletchley Park: Code-breaking's Forgotten Genius (2015)

Steven Mackintosh

as Himself - Narrator

Brian Deacon

as Gordon Welchman (voice)

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Rosamund Welchman

as Herself - Gordon Welchman's Daughter

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W. Gordon Welchman

as Himself - Ex-Head of Hut 6, Bletchley Park (1939-1941) (archive footage)

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Sinclair McKay

as Himself - Author, 'The Secret Life of Bletchley Park'

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Jimmy Thirsk

as Himself - Veteran, Hut 6

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Asa Briggs

as Himself - Veteran, Hut 6

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Jane Fawcett

as Herself - Veteran, Hut 6

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Tony Comer

as Himself - GCHQ Historian and Former Analyst

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John Naughton

as Himself - Vice President, Wolfson College, Cambridge (as Prof John Naughton)

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John Scarlett

as Himself - Chairman, Bletchley Park Trust, and Former Chief, MI6 (as Sir John Scarlett KCMG OBE)

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Jennifer Welchman

as Herself - Gordon Welchman's Granddaughter

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Robert R. Everett

as Himself - Former President, The MITRE Corporation

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Eric Ellingson

as Himself - Gordon Welchman's Colleague

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Larry Hill

as Himself - Gordon Welchman's Colleague