Grand Duchess Gloriana XII / Prime Minister Count Rupert of Mountjoy / Tully Bascombe
Helen Kokintz
Will Buckley
Doctor Alfred Kokintz
Benter
General Snippet (as Macdonald Parke)
United States Secretary of Defense
Roger
Cobbley (as Monty Landis)
Air Raid Warden
BBC Announcer
Pedro
American General (uncredited)
Fenwickian MP (uncredited)
Air Raid Warden (uncredited)
Ticket Collector (uncredited)
British Ambassador (uncredited)
French Ambassador (uncredited)
Soviet Ambassador (uncredited)
Spectator (uncredited)
Army Captain (uncredited)
Ada - Lady in Waiting (uncredited)
Man in Subway (uncredited)
Fenwickian (uncredited)
Mulligan (uncredited)
Lady in Waiting (uncredited)
Maybury (uncredited)
O'Hara (uncredited)
American General at the Pentagon (uncredited)
U.S. Policeman (uncredited)
Reporter (uncredited)
Girl in Underground (uncredited)
American youth (uncredited)
Cunard Captain (uncredited)
American Policeman (uncredited)
Cunard Second Officer (uncredited)
American Admiral (uncredited)
Telephone Operator (uncredited)
Bird Seller (uncredited)