the name of the demon in the exorcist
Pazuzu (The Exorcist) Pazuzu is the main antagonist in The Exorcist horror novels and film series, created by William Peter Blatty. Blatty derived the character from Assyrian and Babylonian mythology, where Pazuzu was considered the king of the demons of the wind, and the son of the god Hanbi. In The Exorcist, Pazuzu appears as a demon who possesses Regan MacNeil.