Jack Skellington is a character and the main protagonist of the 1993 film The Nightmare Before Christmas. Jack is the "Pumpkin King" of Halloween Town, a fantasy world based solely on the Halloween holiday. Jack is voiced by Chris Sarandon. Danny Elfman provided Jack's singing voice in the film, although Sarandon has sung as Jack in subsequent productions.

Based on this passage, who played jack skeleton in nightmare before christmas? Let's give stream of consciousness first:
To answer the question, consider the following: Jack is voiced by Chris Sarandon.
So, the final answer is Chris Sarandon.