While most people know Mark Hamill for playing Luke Skywalker in the only Star Wars trilogy that exists (and I refuse to hear otherwise), he is nearly as well known for doing the voice-over work for the Joker in the TV show, Batman: The Animated Series.
So, while Hamill stated that he was going to retire the Joker voice back in 2011, he brought it back for the audience at Star Wars Weekends at Disney World. And then he mashed it together with Star Wars and the world was a wonderful place.
