Mark Hamill is an American actor, voice artist, and writer best known for portraying Luke Skywalker in the Star Wars saga. He debuted in Star Wars: A New Hope (1977) and reprised the role in subsequent sequels and the sequel trilogy, earning praise for his performances. Beyond live-action, he is a renowned voice actor, particularly as the Joker in Batman: The Animated Series and various DC projects. Hamill has also worked in theater, television, and video games.