The crossword solution for the term 'Royal Figure of Sci-Fi' is Leia, a four letter word. Leia is a fictional character from the Star Wars franchise, portrayed by actress Carrie Fisher in the original trilogy and its sequels. She is the daughter of Darth Vader and the twin sister of Luke Skywalker. Leia is a leader of the Rebel Alliance and later the New Republic, and is an important figure in galactic politics.