"Darth Vader is the central character of the Star Wars saga, appearing as one of the main antagonists of the original trilogy and as the main protagonist of the prequel trilogy. The films establish that there was originally a Jedi Knight named Anakin who fell to the dark side of the Force; he is also revealed to be the father of both Luke Skywalker and Princess Leia Organa. After turning to the Dark Side, Vader is a ruthless henchman of Emperor Palpatine; he secretly intends to overthrow Palpatine to establish himself as ruler of the Empire. Vader is ultimately revealed to have personal honor when he sacrifices himself to save his son, Luke."
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