Icehead

Iceheads were a species of sentient humanoids with lean, black bodies that held spiked, rectangular heads that resembled blocks of ice. Their large mouths brimmed with jagged teeth, and their three-fingered hands sported sharp claws. While they could walk like other humanoid species, members of the species could travel faster by flipping onto their heads and sliding on icy surfaces.

A group of Iceheads lived on the Forest Moon of Endor. There, armed with specialized clubs, they guarded the Snow Palace and went on missions for a sorcerer called the Snow King and his mistress, Odra. In 3 ABY, they stole the season scepter, an artifact, from the Sun King on their masters' orders and plunged Endor into perpetual winter. A group of Ewoks infiltrated the palace disguised as Iceheads, recovered the artifact, and restored the scepter and the season to their previous states.

Text and facts from the “Icehead” article on Wookieepedia, licensed under CC BY-SA 3.0. Modified for this site.