Mark Richard Hamill (born September 25, 1951) is an American actor, voice artist, producer, director, and writer. Hamill is best known for his role as Luke Skywalker in the original Star Wars trilogy and is also well known for numerous voice-acting roles, most notably the Joker in Batman: The Animated Series and various other animated series, films, and video games.
Hamill's Final role as the Joker was in the video Game, Batman: Arkham City. You had no idea how sad People were that it was his last role.
He is Currently voicing Skips The Yeti on the Regular Show.