![Say hello to Gladstone, the latest "diplocat" to join Britain's government offices.](https://media.cnn.com/api/v1/images/stellar/prod/160729153053-01-diplocats.jpg?q=w_3000,h_1687,x_0,y_0,c_fill/h_447)
Gladstone —
Say hello to Gladstone, the latest "diplocat" to join Britain's government offices.
![Gladstone's new job will be "chief mouser" at the UK Treasury.](https://media.cnn.com/api/v1/images/stellar/prod/160729162418-02-diplocats.jpg?q=w_3000,h_1687,x_0,y_0,c_fill/h_447)
Gladstone —
Gladstone's new job will be "chief mouser" at the UK Treasury.
![He will join Larry, official mouse catcher at Downing Street, the home of the British Prime Minister.](https://media.cnn.com/api/v1/images/stellar/prod/160729163000-03-diplocats.jpg?q=w_3000,h_1688,x_0,y_0,c_fill/h_447)
Larry —
He will join Larry, official mouse catcher at Downing Street, the home of the British Prime Minister.
![The red carpet is rolled out for heads of state, dignitaries, and... Larry.](https://media.cnn.com/api/v1/images/stellar/prod/160729163131-05-diplocats.jpg?q=w_3000,h_1687,x_0,y_0,c_fill/h_447)
Larry —
The red carpet is rolled out for heads of state, dignitaries, and... Larry.
![Larry gets into the Royal Wedding spirit with a "Union Jack" bow tie in April 2011.](https://media.cnn.com/api/v1/images/stellar/prod/160729163305-06-diplocats.jpg?q=w_3500,h_2346,x_0,y_0,c_fill/h_447)
Larry —
Larry gets into the Royal Wedding spirit with a "Union Jack" bow tie in April 2011.
![Gladstone will need to get to grips with his new neighbors. Here, Larry (left) squares off against Palmerston, the Foreign Office cat.](https://media.cnn.com/api/v1/images/stellar/prod/160729163544-07-diplocats-restricted.jpg?q=w_3000,h_1687,x_0,y_0,c_fill/h_447)
Larry vs Palmerston —
Gladstone will need to get to grips with his new neighbors. Here, Larry (left) squares off against Palmerston, the Foreign Office cat.
![Much like Gladstone, Palmerston was also a stray cat recruited from the Battersea Dogs and Cats Home in south London.](https://media.cnn.com/api/v1/images/stellar/prod/160729163919-08-diplocats-restricted.jpg?q=w_3000,h_1688,x_0,y_0,c_fill/h_447)
Palmerston —
Much like Gladstone, Palmerston was also a stray cat recruited from the Battersea Dogs and Cats Home in south London.
![Before there was Larry, there was Sybil -- the pet of former chancellor Alistair Darling. Sybil was brought to Downing Street in 2007, the first cat to live in the famous residence for a decade.](https://media.cnn.com/api/v1/images/stellar/prod/160729164131-09-diplocats.jpg?q=w_3000,h_1687,x_0,y_0,c_fill/h_447)
Sybil —
Before there was Larry, there was Sybil -- the pet of former chancellor Alistair Darling. Sybil was brought to Downing Street in 2007, the first cat to live in the famous residence for a decade.
![In the U.S., Socks, the Clinton family's cat, entertained journalists during this press conference in 1994.](https://media.cnn.com/api/v1/images/stellar/prod/160729164231-10-diplocats.jpg?q=w_3000,h_1687,x_0,y_0,c_fill/h_447)
Socks —
In the U.S., Socks, the Clinton family's cat, entertained journalists during this press conference in 1994.
![Former President Bill Clinton and First Lady Hillary Clinton, along with Socks, spent time with children during a Christmas gathering at the White House in 1996. <br />](https://media.cnn.com/api/v1/images/stellar/prod/160729164403-11-diplocats.jpg?q=w_3000,h_1688,x_0,y_0,c_fill/h_447)
Socks —
Former President Bill Clinton and First Lady Hillary Clinton, along with Socks, spent time with children during a Christmas gathering at the White House in 1996. ![Clinton chats with former New York Governor Governor Mario Cuomo, while daughter Chelsea Clinton cuddles Socks at the White House in 1993.](https://media.cnn.com/api/v1/images/stellar/prod/160729164509-12-diplocats.jpg?q=w_3000,h_1688,x_0,y_0,c_fill/h_447)
Socks —
Clinton chats with former New York Governor Governor Mario Cuomo, while daughter Chelsea Clinton cuddles Socks at the White House in 1993.
![Socks is surrounded by photographers in 1992 -- will Gladstone also be able to handle the spotlight?](https://media.cnn.com/api/v1/images/stellar/prod/160729165011-13-diplocats.jpg?q=w_3000,h_1688,x_0,y_0,c_fill/h_447)
Socks —
Socks is surrounded by photographers in 1992 -- will Gladstone also be able to handle the spotlight?