Bletchley Park: Code-breaking's Forgotten Genius

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