What Does Mark Hamill Regret?

Mark Hamill has said he "regrets" voicing his criticism about Luke Skywalker in 'Star Wars: The Last Jedi'. Hamill has played the iconic character in the film franchise since the first installment was released in 1977. He recently revealed he was unhappy with the way director Rian Johnson portrayed him in the recently released eighth episode of the sci-fi saga. To Hamill Luke seemingly "gives up", something which he doesn't believe a Jedi would ever do.