Zero, Jack Skellington's ghost dog.
Zero is Jack Skellington's faithful ghost dog and most trusted companion in The Nightmare Before Christmas.
Trivia
- Zero made his first guest appearance in a Winnie the Pooh crossover and met Ash Ketchum and his friends in Pooh's Adventures of Happily Ever After.
- Zero will guest star in the remake version of Winnie the Pooh's Search for The Black Cauldron.
- Zero saw Ash Ketchum and his friends again in Ash's Adventures of The Nightmare Before Christmas.
- Zero will make his first debut in Winnie the Pooh Gets Frozen
- Zero will make his first guest appearance in a Pokemon crossover in Ash's Adventures of An American Tail.