This article is about the real-world actor. For his animated counterpart, look here.
Mark Hamill is an American actor, producer, director, and writer. He is best known for starring as Luke Skywalker in multiple iterations of the Star Wars franchise, as well as providing the voice of the Joker in Warner Bros. Animation's Batman: The Animated Series (starring Kevin Conroy and Mary Kay Bergman), Skips in Regular Show and Hobgoblin in Spider-Man: The Animated Series.
In Scooby-Doo! Mystery Incorporated, Mark Hamill voices the Crybaby Clown while Matt Lanter voices Baylor Hotner. This is ironic as Hamill is best known for his role as Luke Skywalker in the original trilogy film series while Lanter has portrayed Anakin Skywalker in the Star Wars: The Clone Wars CGI cartoon series.