Mark Hamill is a renowned voice actor, having lent his talents to characters from animated movies, shows, and video games over the last several decades. Of course, his most iconic animated character is, without a doubt, the Joker from Batman: The Animated Series. Hamill’s Joker is so good that for a lot of Batman fans, he is the standard for the Clown Prince of Crime, even over his live-action counterparts. Given all of this, it’s no surprise that Lucasfilm would utilize his skills for Star Wars movies.
Article source: https://www.cinemablend.com/news/2570932/turns-out-mark-hamill-has-larger-presence-in-disneys-star-wars-than-we-thought