User blog comment:LucidPigeons/Villains I Dislike That Everyone Else Loves/@comment-27818776-20151104125509

Well, on Oogie Boogie, he did actually appear earlier in the film. Remember during the "This is Halloween" segment? He appeared as the Shadow of the Moon at night. I apologize for being confused with your statement because I took it as you saying that Oogie literally came out of nowhere while he actually did appear earlier in the film.