The Mouse That Roared

The Duchy of Grand Fenwick decides that the only way to get out of their economic woes is to declare war on the United States, lose and accept foreign aid. They send an invasion force (in chain mail, armed with bows and arrows) to New York and they arrive during a nuclear drill that has cleared the streets.

• 
  Jack Arnold
• 
  Philip Shipway
• 
  Pamela Davies

• 
  Peter Sellers
  Grand Duchess Gloriana XII / Prime Minister Count Rupert Mountjoy / Tully Bascombe
• 
  Jean Seberg
  Helen Kokintz
• 
  William Hartnell
  Will Buckley
• 
  David Kossoff
  Professor Alfred Kokintz
• 
  Leo McKern
  Benter
• 
  MacDonald Parke
  General Snippet
• 
  Austin Willis
  United States Secretary of Defense
• 
  Timothy Bateson
  Roger
• 
  Monte Landis
  Cobbley
• 
  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)