LONDON (AP) — Prime ministers may come and go, but Larry the cat is staying put.

Known officially as the chief mouser at the prime minister’s residence at No. 10 Downing Street, Larry will not be joining outgoing chief David Cameron and his family when they move out Wednesday.

Instead, he will be in place to welcome Cameron’s successor, Theresa May, and her husband Philip— while trying to keep the famous residence and offices vermin-free.

The never shy brown and white tabby rescue cat was seen on patrol as the international press gathered in front of No. 10 to await Cameron’s departure and the arrival of May. He looks the part — but some suggest he’s not so great at catching mice.