December 3, 2015 1:20 PM EST

As part of the promotion for the upcoming Star Wars: The Force Awakens, Mark Hamill, who plays Luke Skywalker in the series, disguised himself as a Stormtrooper and asked fans to donate to charity. The 64-year-old actor took to Hollywood Boulevard to encourage people to donate to a Omaze fundraising campaign, Force for Change. The grand prize winner gets tickets to the premiere of the franchise’s latest installment.

“The last time anybody saw me in a stormtrooper outfit was when we rescued the princess off the Death Star,” said Hamill, as he donned his gear. “I couldn’t be more proud of everyone in the Star Wars family.”

As he spread word about the contest, the costumed Hamill encountered other characters from the galaxy far, far away, such as Darth Vader, spoke to adoring fans (who didn’t realize they were meeting Luke Skywalker himself) and even got involved in a lightsaber battle.

See the full video above.

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