Gordon Welchman was one of the original elite codebreakers crucial to the allies defeating the Nazis in World War II. He is the forgotten genius of Bletchley Park.
Steven Mackintosh
Himself - Narrator
Brian Deacon
Gordon Welchman (voice)
Rosamund Welchman
Herself - Gordon Welchman's Daughter
W. Gordon Welchman
Himself - Ex-Head of Hut 6, Bletchley Park (1939-1941) (archive footage)
Sinclair McKay
Himself - Author, 'The Secret Life of Bletchley Park'
Jimmy Thirsk
Himself - Veteran, Hut 6
Asa Briggs
Himself - Veteran, Hut 6
Jane Fawcett
Herself - Veteran, Hut 6
Tony Comer
Himself - GCHQ Historian and Former Analyst
John Naughton
Himself - Vice President, Wolfson College, Cambridge (as Prof John Naughton)
John Scarlett
Himself - Chairman, Bletchley Park Trust, and Former Chief, MI6 (as Sir John Scarlett KCMG OBE)
Jennifer Welchman
Herself - Gordon Welchman's Granddaughter
