The Frost Giants, beings who seemed to be composed of ice, were vulnerable to melting when exposed to flames. These sentients were significantly larger than Ewoks, possessing a size eight times greater. Their exhalation possessed the lethal ability to freeze other creatures.
Within the Mountain of Doom found on the Forest Moon of Endor, a population of these giants resided in cave systems. Governed by a monarch, they once took Teebo and Wicket as prisoners. Their greatest fear was the dragon-birds of Endor, creatures capable of breathing fire. After the two Ewoks aided them in eliminating a dragon-bird that plagued their mountain, the Giants provided assistance to the Ewoks in finding a fire plant, a plant species exclusive to that mountain.