![The Mouse That Roared](https://image.tmdb.org/t/p/original//l6EvqBOrU2fitXyodw4mINFWQSg.jpg)
![The Mouse That Roared](https://image.tmdb.org/t/p/w200//dHSIXGVmLHsPeWdfyVe8J1eZCFS.jpg)
The Mouse That Roared
1 hour 23 minutes1959-07-17
6.3
Watch Trailer
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.
Cast
![Peter Sellers](https://image.tmdb.org/t/p/w200//tdgIIb5HQJ4cgiEssuhJc89He11.jpg)
Peter Sellers
Grand Duchess Gloriana XII / Prime Minister Count Rupert Mountjoy / Tully Bascombe
![Jean Seberg](https://image.tmdb.org/t/p/w200//mNW6MJ5YAiFWAnH9pCmi0PjKXc.jpg)
Jean Seberg
Helen Kokintz
![William Hartnell](https://image.tmdb.org/t/p/w200//yMNMzT2YVinyJLzqrzTC4clbnLT.jpg)
William Hartnell
Will Buckley
![David Kossoff](https://image.tmdb.org/t/p/w200//xHhjvASCgqQPFCK2rGUbUJzx1e0.jpg)
David Kossoff
Professor Alfred Kokintz
![Leo McKern](https://image.tmdb.org/t/p/w200//yzVoghBAj7iK8dsVu39TNrLpfvE.jpg)
Leo McKern
Benter
![MacDonald Parke](https://image.tmdb.org/t/p/w200//6bsQ4608AFvQHKyxb9zKaLMD1xq.jpg)
MacDonald Parke
General Snippet
![Austin Willis](https://image.tmdb.org/t/p/w200//f9hyLgx7RvvTNNbGLQrJ5EnCHF1.jpg)
Austin Willis
United States Secretary of Defense
![Timothy Bateson](https://image.tmdb.org/t/p/w200//rLJo8duzhtaWYJUftLejVXE4AD8.jpg)
Timothy Bateson
Roger
![Monte Landis](https://image.tmdb.org/t/p/w200//lTsPA1axwQIXgyGgU4nYfW9riKb.jpg)
Monte Landis
Cobbley
![Alan Gifford](https://image.tmdb.org/t/p/w200//bRmH5q90Y5pwrmERHi9aol8WeLp.jpg)
Alan Gifford
Air Raid Warden
![Colin Gordon](https://image.tmdb.org/t/p/w200//aGLWJWtW0bVEUCCEEDAshz4qu2Y.jpg)
Colin Gordon
BBC Announcer
![Harold Kasket](https://image.tmdb.org/t/p/w200//vh8z2nN0AH25JhujWuBG0aY7hvM.jpg)
Harold Kasket
Pedro
![Guy Deghy](https://image.tmdb.org/t/p/w200//y0d1nhgVwZtVwQoG84vyCG6ehcf.jpg)
Guy Deghy
Soviet Ambassador (uncredited)
![Eve Eden](https://image.tmdb.org/t/p/w200//jg4zDZMeXhdwB0vdXNQVRihQGZY.jpg)
Eve Eden
Spectator (uncredited)
![Bill Edwards](https://image.tmdb.org/t/p/w200//kT7MLc1jWsv9kDO0jdBbIW1RGmM.jpg)
Bill Edwards
Army Captain (uncredited)
![Mabel Etherington](/_next/static/media/notFound.aecd17f8.png)
Mabel Etherington
Ada - Lady in Waiting (uncredited)
![Muriel Greenslade](/_next/static/media/notFound.aecd17f8.png)
Muriel Greenslade
Lady in Waiting (uncredited)
![Fred Haggerty](/_next/static/media/notFound.aecd17f8.png)
Fred Haggerty
Fenwickian (uncredited)
![Juba Kennerley](https://image.tmdb.org/t/p/w200//23NJN92UVqcU9vXSYCjqZMKq2bs.jpg)
Juba Kennerley
Maybury (uncredited)
![George Margo](/_next/static/media/notFound.aecd17f8.png)
George Margo
O'Hara (uncredited)
![Lionel Murton](https://image.tmdb.org/t/p/w200//aGU7vs37UkQP10zj18JgASJlpJn.jpg)
Lionel Murton
American General at the Pentagon (uncredited)
![Bill Nagy](https://image.tmdb.org/t/p/w200//xu2s3b4iil89RKtH7j0imhArvtx.jpg)
Bill Nagy
U.S. Policeman (uncredited)
![Robert O'Neil](https://image.tmdb.org/t/p/w200//fnDJp50Y1Wd1XareVU5QlgAVsDj.jpg)
Robert O'Neil
Reporter (uncredited)
![Pat Ryan](/_next/static/media/notFound.aecd17f8.png)
Pat Ryan
American General (uncredited)
![Stuart Saunders](/_next/static/media/notFound.aecd17f8.png)
Stuart Saunders
Sergeant (uncredited)
![Fred Stroud](/_next/static/media/notFound.aecd17f8.png)
Fred Stroud
Fenwickian (uncredited)
![John Tatum](/_next/static/media/notFound.aecd17f8.png)
John Tatum
American Admiral (uncredited)
![Mavis Villiers](https://image.tmdb.org/t/p/w200//fmfDBUFedsiPrtx4Sm9SeDOKKQ7.jpg)
Mavis Villiers
Telephone Operator (uncredited)
![Fred Wood](https://image.tmdb.org/t/p/w200//jcQIbcwcLYTS7JAVMg1n1f36Hsv.jpg)