Peter Sellers в ролята на Grand Duchess Gloriana XII / Prime Minister Count Rupert Mountjoy / Tully Bascombe
Jean Seberg в ролята на Helen Kokintz
William Hartnell в ролята на Will Buckley
David Kossoff в ролята на Professor Alfred Kokintz
Leo McKern в ролята на Benter
MacDonald Parke в ролята на General Snippet
Austin Willis в ролята на United States Secretary of Defense
Timothy Bateson в ролята на Roger
Monte Landis в ролята на Cobbley
Alan Gifford в ролята на Air Raid Warden
Colin Gordon в ролята на BBC Announcer
Harold Kasket в ролята на Pedro
Guy Deghy в ролята на Soviet Ambassador (uncredited)
Eve Eden в ролята на Spectator (uncredited)
Bill Edwards в ролята на Army Captain (uncredited)
Mabel Etherington в ролята на Ada - Lady in Waiting (uncredited)
Muriel Greenslade в ролята на Lady in Waiting (uncredited)
Fred Haggerty в ролята на Fenwickian (uncredited)
Juba Kennerley в ролята на Maybury (uncredited)
George Margo в ролята на O'Hara (uncredited)
Lionel Murton в ролята на American General at the Pentagon (uncredited)
Bill Nagy в ролята на U.S. Policeman (uncredited)
Robert O'Neill в ролята на Reporter (uncredited)
Pat Ryan в ролята на American General (uncredited)
Stuart Saunders в ролята на Sergeant (uncredited)
Fred Stroud в ролята на Fenwickian (uncredited)
John Tatum в ролята на American Admiral (uncredited)
Mavis Villiers в ролята на Telephone Operator (uncredited)
Fred Wood в ролята на Bird Seller (uncredited)
