Sally (The Nightmare Before Christmas)

Sally is the deuteragonist of the original film and of You're Not Alone by Alyson Harker.

Biography
Sally was created by Dr. Finklestein, who is Halloween Town's mad scientist. One day when she sneaks out of the house, she accidentally runs into Alyson Harker, but unlike the other individuals, Sally does not tell her to run and both of them bond with each other, eventually becoming very close friends.