Kadro (15)
Steven MackintoshHimself - Narrator
Brian DeaconGordon Welchman (voice)Rosamund WelchmanHerself - Gordon Welchman's DaughterW. Gordon WelchmanHimself - Ex-Head of Hut 6, Bletchley Park (1939-1941) (archive footage)Sinclair McKayHimself - Author, 'The Secret Life of Bletchley Park'Jimmy ThirskHimself - Veteran, Hut 6Asa BriggsHimself - Veteran, Hut 6Jane FawcettHerself - Veteran, Hut 6Tony ComerHimself - GCHQ Historian and Former AnalystJohn NaughtonHimself - Vice President, Wolfson College, Cambridge (as Prof John Naughton)John ScarlettHimself - Chairman, Bletchley Park Trust, and Former Chief, MI6 (as Sir John Scarlett KCMG OBE)Jennifer WelchmanHerself - Gordon Welchman's GranddaughterRobert R. EverettHimself - Former President, The MITRE CorporationEric EllingsonHimself - Gordon Welchman's ColleagueLarry HillHimself - Gordon Welchman's Colleague