Darth Vader is the central antagonist in George Lucas' original Star Wars trilogy and his final prequel, Star Wars Episode III: Revenge of the Sith. In the original Star Wars trilogy, Vader is embodied by David Prowse, though Sebastian Shaw makes a brief cameo as the unmasked Vader in Star Wars Episode VI: Return of the Jedi. In Star Wars Episode III: Revenge of the Sith, Vader is played by Hayden Christensen. In the original trilogy and Episode III, James Earl Jones provides Vader's voice when he is masked, although Jones was uncredited for this role. Vader is one of the most iconic villains in film history. The American Film Institute listed him as the third greatest movie villain in cinema history on "AFI's 100 Years... 100 Heroes and Villains". In the original trilogy, George Lucas depicts Darth Vader as a fearsome cyborg who acts as the supreme commander of the brutal Galactic Empire. Throughout the films, Vader oppresses the galaxy and hunts down the members of the Rebel Alliance in the service of his master, Emperor Palpatine.