Ithaqua (the "Wind-Walker" or the "Wendigo") is a terrifying being that is one of the Great Old Ones. It appears as a horrifying giant with a roughly human shape and glowing red eyes.
He has been reported from as far north as the Arctic to the Sub-Arctic, where Native Americans first encountered him. He is believed to prowl the Arctic waste, hunting down unwary travelers and slaying them gruesomely, and is said to have inspired the Native American legend of the Wendigo and possibly the Yeti.
Ithaqua's cult is small, but he is greatly feared in the far north. Fearful denizens of Siberia and Alaska often leave sacrifices for Ithaqua—not as worship but as appeasement. Those who join his cult will gain the ability to be completely unaffected by cold. He often uses Shantaks, a dragon-like "lesser race", as servitors. A race of subhuman cannibals, the Gnophkehs, also worshiped him, along with Rhan-Tegoth and Aphoom-Zhah.