Original Appearances: The Nightmare Before Christmas (1993)
Other Appearances: Assorted merchandise, no doubt!
Biography: Zero is the pet ghost dog of Jack Skellington, the Pumpkin King of Halloween Town. Zero's glowing nose resembles a Jack O'Lantern.
Powers: Standard ghostly abilities
Group Affiliation: Zero lives in Halloweentown, if that can be considered a Group Affiliation
Miscellaneous: Of all of Tim Burton's creations, it seems that Zero and his master, Jack Skellington (as well as all of the Nightmare Before Christmas stuff) will be the longest-living creations of all, having become incredibly popular! They even take over the Haunted Mansion every year at the Disney parks for the holidays.