<P> The sound of the respirator function of Vader's mask was created by Ben Burtt using modified recordings of scuba breathing apparatus used by divers . The sound effect is trademarked in the U.S. Patent and Trademark Office under Trademark #77419252 and is officially described in the documentation as "The sound of rhythmic mechanical human breathing created by breathing through a scuba tank regulator ." </P> <P> Commentators have often pointed to the influence of Akira Kurosawa's films such as The Hidden Fortress (1958) on George Lucas, and Vader's Samurai - inspired costume design is held up as a significant example of the Japanese influences on Star Wars . </P> <P> Darth Vader was portrayed by bodybuilder David Prowse in the original film trilogy, and by stunt performer Bob Anderson during the character's intense lightsaber fight scenes . Lucas originally intended for Orson Welles to voice Vader (after dismissing using Prowse's own voice due to his English West Country accent, leading to the rest of the cast nicknaming him "Darth Farmer"). After deciding that Welles's voice would be too recognizable, he cast the lesser - known James Earl Jones instead . Jones initially felt his contributions to the films were too small to warrant recognition and his role was uncredited at his request until the release of Return of the Jedi (1983). When Jones was specifically asked if he had supplied Vader's voice for Revenge of the Sith--either newly or from a previous recording--Jones answered, "You'd have to ask Lucas about that . I don't know". Hayden Christensen and Gene Bryant alternately portray Vader in Revenge of the Sith . During the production of Revenge of the Sith, Christensen asked Lucas if a special Vader suit could be constructed to fit his own body, rather than have a different actor don one of the original sets of Vader armor worn by Prowse . Brock Peters provided the voice of Darth Vader in the NPR / USC radio series . Both Spencer Wilding and Daniel Naprous portrayed Vader in Rogue One (2016), with Jones reprising his role as the character's voice . </P> <P> Vader's character has also been portrayed in several video games; in games such as Star Wars: Rebel Assault II: The Hidden Empire and Star Wars: Dark Forces, visual effects artist C. Andrew Nelson appears in short sequences in the Vader costume, voiced by Scott Lawrence . Matt Sloan, who appeared in the YouTube parody Chad Vader, provided the voice of Darth Vader in The Force Unleashed . As a result of his video game appearances, Nelson was cast to appear as Vader in brief sequences inserted into the 1998 special edition of The Empire Strikes Back, in which Vader is seen boarding his shuttle . </P>

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