Cast & crew
Bletchley Park: Code-breaking's Forgotten Genius (2015)
Directed by Russell England, John Smithson
Cast
| Steven Mackintosh | Himself |
| Brian Deacon | Ethel Gordon |
| Rosamund Welchman | Herself |
| W. Gordon Welchman | Bletchley |
| Sinclair McKay | Bletchley |
| John Naughton | Cambridge |
| Jimmy Thirsk | Himself |
| Asa Briggs | Himself |
| Jane Fawcett | Herself |
| Tony Comer | Analyst |
| John Scarlett | Bletchley |
| Jennifer Welchman | Granddaughter |
| Larry Hill | Himself |
| Eric Ellingson | Himself |
| Robert R. Everett | Mitre |
Crew
| Russell England | Director |
| John Smithson | Director |