Original: Mark Richard Hamill ( born September 25 , 1951 ) is an American actor and voice artist , best known for his portrayal of Luke Skywalker in the original Star Wars trilogy and as the iconic voice of The Joker in the DC Animated Universe .
Simplified: Mark Richard Hamill ( born September 25 , 1951 ) is an American actor , comedian and voice actor . Hamill is best known for his portrayal of Luke Skywalker in the original Star Wars trilogy ( 1977 -- 1983 ) .