Change the casting of a character in a movie or television show
The rules are simple, user A) names a character in a movie with the actor that portrays them, and user B) selects someone else that would've been great in the role if not better.
Like all of my threads, I'm encouraging between 2-3 options to help the thread in moving along if a pick is someone that no one knows about.
Joker played by Jack Nicholson (Batman 89)
Joker played by Heath Ledger (The Dark Knight)
Joker played by Jared Leto (Suicide Squad)