Yoda is a fictional character in the Star Wars universe, first appearing in the 1980 film The Empire Strikes Back. He is a small, green humanoid alien who is powerful with the Force. In his first appearance in the original trilogy, Yoda is described as the Jedi master of Obi-Wan Kenobi and subsequently trains Luke Skywalker to use the Force. The character reappears in Return of the Jedi where he reveals his age to be 900. Yoda has become iconic in popular culture due to his distinct pattern of speech and role as an old, wise mentor.