The crossword solution for the term 'Friend of Luke and Han' is Leia, which is a four-letter word. Leia is a fictional character from the Star Wars franchise, who is a princess of the planet Alderaan, a member of the Imperial Senate, and a leader of the Rebel Alliance. She is the twin sister of Luke Skywalker and the daughter of Anakin Skywalker and Padme Amidala. Leia is a close friend of both Luke and Han Solo, and is a major character in the original trilogy of Star Wars films.