Sally is the deuteragonist of the film and Jack Skellington's love interest. She is a lovely, loving, caring, though shy ragdoll who told Jack that Christmas and Halloween shouldn't be mixed. She is originally patched together by Doctor Finkelstein. She is the only one to have doubts about Jack's Christmas plan. Although her creator attempts to keep her constantly imprisoned, she often manages escape with deadly nightshade she slips him, causing him to fall asleep. Despite her makeshift appearance, Sally is a determined individual with a good feel for what is right. Fiona Apple provides the vocals for "Sally's Song" on the 2006 special edition of The Nightmare Before Christmas: Original Motion Picture Soundtrack, while Amy Lee provides the vocals for "Sally's Song" on Nightmare Revisited. She also appears in Tim Burton's The Nightmare Before Christmas: Oogie's Revenge.
Sally is a rag doll-type character, with detachable limbs stuffed with fall leaves. She often falls apart, requiring her to sew herself back together, and carries a set of sewing needles and thread for precisely that purpose. She was created by Doctor Finkelstein, Halloween Town's resident mad scientist, as a companion. Their relationship is rather tense, as Finklestein insists on keeping Sally under lock and key, under the pretext of protecting her from the excitement of the outside world. However Sally is restless, and is intrigued by the wonders of the outside world.