Board Thread:The Reference Desk/@comment-24894325-20151215214102/@comment-146099-20151219012912

No, we don't consider mentioned characters to have "appeared", though what actually constitutes an appearance is disputed. There used to be a "mentioned in" field in the infobox, but that was done away with.

You're right. Don't cite the story in the infobox, just in the main body.