Yoda

Yoda is a wise diminutively-sized green creature in the Star Wars universe, appearing as a supporting protagonist in the second and third original films, as well as one of the minor protagonists of all three prequel trilogy films.

Description
A renowned Jedi master whose dialogue often includes reversed grammar, Yoda made his first on-screen appearance in Star Wars Episode V: The Empire Strikes Back where he is responsible for training Luke Skywalker in the ways of the Jedi. His final chronological appearance is Star Wars Episode VI: Return of the Jedi, when he floats away peacefully at the age of 900, but not before he reveals to Luke that Leia is his sister. He also appears extensively in the two animated Clone Wars series as well as the Star Wars Expanded Universe of novels and comic books. Despite his old age, he has matched up well against younger opponents.

In the original films, he trains Luke Skywalker to fight against the evil Galactic Empire. In the prequel films, he serves as Grand Master of the Jedi Council and as a general in The Clone Wars.

In 2008, Yoda was selected by Empire magazine as the 25th greatest movie character of all time. On their list of the 100 Greatest Fictional Characters, Fandomania.com ranked Yoda at number 60.

Trivia

 * In E.T. the Extra-Terrestrial, during the trick-or-treat scene, Yoda was included as a child's Halloween costume.
 * Yoda is also the second name of Gabe Duncan (Good Luck Charlie )