Pazuzu

In ancient Mesopotamian religion, Pazuzu was the king of the demons of the wind, brother of Humbaba and son of the god Hanbi. Pazuzu is often depicted as a combination of animal and human parts. He has the body of a man, the head of a lion or dog, talons of an eagle, two pairs of wings, and a scorpion's tail. Although Pazuzu is, himself, considered to be an evil spirit, he drives and frightens away other evil spirits, therefore protecting humans against plagues and misfortunes.

Pazuzu is the main antagonist in The Exorcist horror novels and film series, created by William Peter Blatty.