Pazuzu

Pazuzu is a main antagonist and character from the 1971's horror novel  The Exorcist , but became extremely popular by the 1973's horror film adaptation. (seen in some screamers) Pazuzu appears as a demon who possesses Regan MacNeil, Cheche, Damien Karras & Kokumo.

Pictures of Pazuzu are commonly used in screamers, like including: Where's Waldo? and other games and websites.

Eileen Dietz
Pazuzu's face and the role was played by Eileen Dietz.

Links

 * "The Exorcist" film (Wikipedia article)
 * All Screamers Featuring Pazuzu