Beorn

In The Hobbit, Beorn was skin-changer, a man who could assume the appearance of a bear. He lived with his tame horses in a wooden house between the Misty Mountains and Mirkwood, to the east of the Great River of Wilderland. Beorn received Gandalf, Bilbo Baggins, and the thirteen Dwarves and gave the Dwarves and Bilbo help in their quest. In the Battle of Five Armies, Beorn rescued Thorin from the goblins and killed their leader Bolg[?].