Luke's sister is Leia, a four-letter word. Leia is a major character in the Star Wars franchise, first appearing in the original 1977 film. She is the twin sister of Luke Skywalker and daughter of Anakin Skywalker and Padme Amidala. Leia is a leader of the Rebel Alliance, a member of the Imperial Senate, and later a general of the Resistance. She is a prominent figure in the fight against the Galactic Empire and is known for her bravery and intelligence.