Mark Hamill plays Luke Skywalker, a young Jedi Knight who fights against the Galactic Empire.
Harrison Ford portrays Han Solo, a skilled pilot and smuggler who aids the Rebel Alliance.
Carrie Fisher takes on the role of Princess Leia, a leader of the Rebellion and Luke's sister.
Billy Dee Williams plays Lando Calrissian, a charming and resourceful administrator who joins the rebels.
Anthony Daniels is C-3PO, a protocol droid fluent in over six million forms of communication.
Peter Mayhew portrays Chewbacca, a Wookiee and loyal co-pilot of the Millennium Falcon.
Sebastian Shaw plays Anakin Skywalker, the redeemed Jedi and father of Luke and Leia.
Ian McDiarmid is The Emperor, the dark ruler of the Galactic Empire who seeks to destroy the Jedi.
Frank Oz provides the voice of Yoda, the wise and ancient Jedi Master who trains Luke.
James Earl Jones voices Darth Vader, the menacing servant of the Emperor and father to Luke.
David Prowse is Darth Vader, physically portraying the iconic villain throughout the film.
Alec Guinness plays Ben 'Obi-Wan' Kenobi, a former Jedi Master who guides Luke in his journey.
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