From Tolkien Gateway
Badgers in LOTRRPG

There must have been a mighty crowd of dwarves here at one time and every one of them busier than badgers for five hundred years to make all this, and most in hard rock too!

Badgers were known in the Westlands for being excellent hole-diggers.[1] Men used traps to catch these animals.[2]

A mysterious kind of apparently sentient badgers, only told of in legends, were called the Badger-folk.[3] Indeed, Tom Bombadil told to Frodo Baggins and his companions some absurd stories about the queer ways of badgers.[4]

Portrayal in adaptations

1982-97: Middle-earth Role Playing:

Badgers (which are given game statistics) are carnivorous animals of the fauna of Rhovanion. They are timid but can be dangerous if cornered.[5]

2002-5: The Lord of the Rings Roleplaying Game:

Badgers (which are given game statistics) can be find in the Shire and throughout Eriador.[6]