Boyd is a prison guard at Shawshank State Prison. This article is a stub, an article too short to provide more than rudimentary information about a subject. Please help the Stephen King Wiki by expanding it. Behind the scenes Boyd is played by Chris Coy in the Castle Rock television series. Retrieved from "https://stephenking.fandom.com/wiki/Boyd?oldid=51853" Categories: Stubs Castle Rock characters Males Community content is available under CC-BY-SA unless otherwise noted.