Jack Skellington character jug produced by Bioworld of Irving, Texas, circa 2020. Jack Skellington is a fictional character and the protagonist of the 1993 film "The Nightmare Before Christmas". Jack is the Pumpkin King of Halloween Town and lives in a fantasy world based solely on the Halloween holiday. His usual appearance is a skeleton dressed in a black pin-striped suit and a bow tie resembling a bat, but there are some points in which he dresses as a scarecrow with a pumpkin for a head. His last name is a play on skeleton. He has a pet ghost dog named Zero, who has a small glowing nose that looks like a jack-o'-lantern. His love interest is Sally, a rag doll created by Dr. Finklestein.