Impulsive and explosive, Bular is the last of his tribe, hiding in the shadows of the human world. His warlord father Gunmar (and the rest of the Gumm-Gumm Army) has been imprisoned within the Darklands for centuries. It kills Bular that he must take orders from Strickler, a lowly, second-class Changeling. He wants nothing more than to destroy the Trollhunter and free Gunmar and his army, proving his worth to his estranged father.