Jar Jar Binks is a fictional character from the Star Wars saga created by George Lucas. A major character in Star Wars Episode I: The Phantom Menace, he also has a smaller role in Star Wars Episode II: Attack of the Clones, and a one-line cameo in Star Wars Episode III: Revenge of the Sith, and the television series Star Wars: The Clone Wars. The first lead computer generated character of the franchise, he was portrayed by Ahmed Best in most of his appearances.
Jar Jar's primary role in Episode I was to provide comic relief for the audience. More: en.wikipedia.org.