@b_jonas out of the hat, I'd say
character only for questions that ask the character, such as "what's this cosplay/who was that" and don't care about the place they read it in first,
story-identification for when OP really wants the book/issue/movie etc in order to rewatch/read/etc it
and the character description is only a means to an end,
both for when they want both the work and character (such as the Star Wars above)