Felix the cat arrived at Huddersfield Station in 2011 as a nine-week-old kitten. After nearly five years of hard work keeping the West Yorkshire train station free of mice, she's been promoted to the position of senior pest controller.
To accompany her new title, Felix has also received a new uniform complete with a high-visibility vest and name badge.
Since her promotion in late January, Felix's online following has skyrocketed, and in the past week her Facebook fans have jumped from 3,000 to almost 30,000.
Felix was brought into the station to help keep rodents at bay and she has since won the hearts of commuters.
According to local newspaper The Huddersfield Daily, Felix is paid in cat treats provided by her employer, TransPennine Express.
When ticket barriers were brought into the station, a cat flap was built in especially for Felix.
There is no word yet on whether Felix has her sights set on moving up to the role of stationmaster.