Anecdotes

Reprised Chop Top, his character in Massacre à la tronçonneuse 2 (1986), in a film that was never released called "All American Massacre (2000)," which featured music from Buckethead.

Was friends with Timothy Leary.

Has a band with Guns N' Roses guitar player Buckethead called "Cornbugs."

Got the part of Chop Top in Massacre à la tronçonneuse 2 (1986) based on a cameo he did in a short film called The Texas Chainsaw Manicure.

Has been in six movies with Tom Towles (La Nuit des morts-vivants (1990), La Maison des 1000 morts (2003), Home Sick (2007), The Devil's Rejects (2005) Grindhouse (2007), and Halloween (2007)).

While many of his characters appear to be swamp people, Bill actually comes from an upper-class family with a strong connection to Yale University. He is the son of Virginia Gillette (Kleitz) and S. D. Moseley (Spencer Dumaresq Moseley). His mother was a journalist. His father was a captain and center of the 1942 Yale football team, a member of the Yale Corporation, and chairman and chief executive of the Railway Express Agency. Bill's paternal grandfather, George Moseley, was also a Yale football star. His maternal grandfather, William Lambert Kleitz, was a president and director of Guaranty Trust Co.

Was once a journalist, writing for such magazines as Omni, National Lampoon and Psychology Today.

Father, with Lucinda Jenney, of actress Marion Moseley.

Was considered for the role of Captain James Deakins on New York - Section criminelle (2001).