William Dyer is a minor character on Ugly Americans in the episode "An American Werewolf in America".


Dyer is a vampire who is featured in a documentary film played in Mark Lilly's class. He led the native New Yorkers in a battle against the Irish immigrants that were flooding into the city in its early days.

After he lost his right eye, he entered the pizza business. Now he works in a pizza place called "Ray's Above Average Pizza". Yet he continues his hatred toward the Irish immigrants.