- Alan Gifford - Air Raid Warden
- Colin Gordon - BBC Announcer
- Harold Kasket - Pedro
- Guy Deghy - Soviet Ambassador (uncredited)
- Eve Eden - Spectator (uncredited)
- Bill Edwards - Army Captain (uncredited)
- Mabel Etherington - Ada - Lady in Waiting (uncredited)
- Muriel Greenslade - Lady in Waiting (uncredited)
- Fred Haggerty - Fenwickian (uncredited)
- Juba Kennerley - Maybury (uncredited)
- George Margo - O'Hara (uncredited)
- Lionel Murton - American General at the Pentagon (uncredited)
- Bill Nagy - U.S. Policeman (uncredited)
- Robert O'Neil - Reporter (uncredited)
- Pat Ryan - American General (uncredited)
- Stuart Saunders - Sergeant (uncredited)
- Fred Stroud - Fenwickian (uncredited)
- John Tatum - American Admiral (uncredited)
- Mavis Villiers - Telephone Operator (uncredited)
- Fred Wood - Bird Seller (uncredited)
- Jack Arnold
-
Stanley Mann, Roger MacDougall
-
Walter Shenson
Capítulo disponible en las siguientes plataformas:
