Shyamalan made some huge casting announcements of his own and even gave cryptic names to some of the characters involved. Of course he confirmed the return of Bruce Willis and the incomparable Samuel L. Jackson. He also teased the reemergence of "The Virtuoso" James McAvoy and listed all the personalities we saw in Split (plus a few we didn't). He called Anya Taylor-Joy's character, Casey Cooke, "The Prodigy" as he confirmed her inclusion as well. In a much more recent tweet, he also revealed that Sarah Paulson has joined the cast!