| Episode credited cast: |
 | Neville Chamberlain | - | Himself (archive footage) |
 | Nevile Henderson | - | Himself (archive footage) (as Sir Nevile Henderson) |
 | King George VI | - | Himself (archive footage) |
 | Sue Lawley | - | Herself - Presenter |
| Princess Margaret | - | Herself (archive footage) |
 | Queen Elizabeth II | - | Herself (archive footage) |
 | Queen Elizabeth the Queen Mother | - | Herself (archive footage) |
| Tim Sebastian | - | Himself (voice) |
| David Sells | - | Himself - Home Affairs Correspondent (voice) |
| Charles Wheeler | - | Himself - Berlin Correspondent |
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