King of Rodents. The Mouse King is the King of all rodents, and he spends his days looking after the concerns of rodents on the Material, Astral, and Ethereal Planes. When slain, he is reborn within a week. His people's ability to rapidly multiply leaves him with plenty of resources to defend his kind against the machinations of demon lords.

In the Company of Thieves. The Mouse King can always be found at the head of a guild of thieves. He schemes to make sure his wealth continues to grow, which often means entering into conflict with other gangs.

Civic-Minded Scoundrel. When it comes to making money, he takes into account what is best for the long-term prosperity of the city in which he operates, which he rightly believes is integral to his own success and that of his subjects. He is a great proponent of trade of all kinds, and his subjects have found their way to every corner of the world in the company of sailors, merchants, and drovers.