Appearance: a tall, grey rat. Had a small helmet.
Personality: dumb, but a good fighter. He disliked his partner Furgy.
Gurrbagg was a very minor character, and nothing much is known of him. He was first seen sleeping against a tree with Furgy. He and his companion argued their way to Zemmerug's camp, where Gurrbagg was killed by Hogtoe's spear.