This question was closed by the community within 1.5 hours of being posted, and currently has no votes to reopen. However, as one user put it in a comment:
not only is "Rudolph the Red Nose Reindeer" a literary work, it is fantasy.
The upvotes on this comment and the comment from the OP suggest a certain level of support for the question being on-topic, so I thought it was worth a meta discussion.
My immediate thought upon seeing this question was that it should be closed, either as "too broad" since there are many different versions of Santa, or as "off-topic" since Santa is more of a mythological or legendary figure than a character from a work of science fiction or fantasy. However, this particular question is about Rudolph the Red-Nosed Reindeer - a fictional work which has appeared as a book, a song, a film, comics, TV specials, and more - which makes it seem more on-topic.