Shadix was born William Glenn Shadix in Bessemer, Alabama. He attended Birmingham-Southern College for two years, studied with the absurd playwright and director Arnold Powell.
Other voice work Shadix includes the aforementioned Nightmare, and Episodes of Jackie Chan Adventures, Justice League Unlimited.His television including HBO drama Carnivale, NBC sitcom Seinfeld, Where he Played Jerry's owner, and play Roles giant brothers Typhoon and Typhon in "Hercules: The Legendary Journeys.
He repeated historical Nightmare Before Christmas role in the sequel, Oogie's Revenge, and Square Enix game Kingdom Hearts.
