Gregory was a short, malformed servant of the immortal pastor, Redmond Swann. Like many of his ilk, Gregory was a citizen of Barrettstown and the end-result of centuries of inbreeding. During periods of time when he was not working in servitude to Redmond Swann, Gregory was known to be in the employ of Vincent Hoffman. In January, 1991 Barnabas Collins, Julia Hoffman, Willie Loomis, Vincent Hoffman and Lara Hoffman trapped Redmond Swann and the entire population of Barrettstown inside of the Swann’s church. Vincent Hoffman set the church ablaze and Swann and his evil followers died in the fire. Gregory was one of the few to survive the conflagration. After the fall of Redmond Swann, Gregory returned to the employ of Vincent Hoffman.
Gregory is an original character who was featured exclusively in the Dark Shadows comic book series. He never appeared in the television show.