Title: Star Wars (film)
Content:  the voice of Darth Vader. Lucas originally intended for Orson Welles to voice the character after dismissing Prowse due to his West Country English accent (which led to him being nicknamed, within the cast, as "Darth Farmer"). However, determining that Welles' voice would be too familiar to audiences, Lucas instead cast then-relatively less recognizable Jones.  Other actors include Phil Brown and Shelagh Fraser as Luke's Uncle Owen and Aunt Beru; Jack Purvis, Kenny Baker's partner in his London comedy act, as the Chief Jawa in the film; and Eddie Byrne as Vanden Willard, a Rebel general. Denis Lawson and Garrick Hagon played rebel 
Title: Darth Vader
Content:   Darth Vader was portrayed by bodybuilder David Prowse in the original film trilogy, with fencer Bob Anderson performing the character's lightsaber fight scenes. At 6ft 6in tall, George Lucas thought Prowse "brought a physicality to Darth Vader that was essential for the character ... with an imposing stature and movement performance to match the intensity and undercurrent of Vader’s presence." Lucas chose to have a different actor be the voice of Vader, since Prowse had a strong West Country English accent that led the rest of the cast to nickname him "Darth Farmer". Lucas originally intended for Orson Welles to voice Vader, but after deciding that Welles's voice would be too recognizable, he cast the lesser-known James Earl Jones instead. Jones initially felt 
Title: Star Wars: Episode III – Revenge of the Sith (video game)
Content:  talent for the animated version of Count Dooku, voices various minor characters as well as Dooku himself. General Grievous is voiced by Matthew Wood, who also provided his voice in the game's film counterpart and the 2008 Clone Wars series. Terrence C. Carson voices Mace Windu and Nick Jameson voices Chancellor Palpatine/Darth Sidious and Ben Kenobi. Scott Lawrence, best known for his role as United States Naval JAG lawyer Cmdr. Sturgis Turner on the CBS series JAG provides the voice for Darth Vader. Yoda and Cin Drallig are both voiced by Tom Kane, who also provides additional voices. Finally, Serra Keto is voiced by Kari Wahlgren.
Title: David Prowse
Content:  Prowse played the physical form of Darth Vader in the original Star Wars trilogy. Prowse spoke the dialogue during filming, but George Lucas wanted a "darker voice" than Prowse's relatively jovial West Country accent, and had James Earl Jones provide a more sinister, malevolent voice for the character. Prowse stated he was originally told he would be seen and heard at the end of Return of the Jedi when Vader's mask was removed. Instead, actor Sebastian Shaw was used. Upon Prowse's death, Lucas stated that:"David brought a physicality to Darth Vader that was essential for the character. He made Vader leap off the page and on to the big screen, with an 
Title: Vader Episode I: Shards of the Past
Content: Dupree Jones as Darth Vader ; Jesse Gomez as the voice of Darth Vader ; Star Wars Theory (Neo) as unmasked Darth Vader ; Marik Knight as Young Anakin Skywalker ; Steven Bartlett as Emperor Palpatine ; Bradley Klein as the voice of Emperor Palpatine ; Catherine LaSalle as Padmé Amidala ; Andrew Branch as Commander Fox 
Title: Darth Vader
Content:  it. They trained extensively with stunt coordinator Nick Gillard to memorize and perform their duel together. As in the previous prequel film, McGregor and Christensen performed their own lightsaber fighting scenes without the use of stunt doubles. Anakin has also been voiced by Mat Lucas for the 2003 micro-series Clone Wars, and by Matt Lanter in the CGI animated film The Clone Wars, the television series of the same name and for Anakin's small roles in the animated series Rebels and Forces of Destiny. James Earl Jones reprised the voice role for Vader's appearances in Rebels. Both Lanter and Jones contributed their voices for the second-season finale of Rebels, at times with identical dialogue spoken by both actors blended together in different ways.
Title: Sam Witwer
Content:  A lifelong Star Wars fan, Witwer provided both his voice and likeness for lead character Galen Marek / Starkiller (Darth Vader's secret apprentice) in the 2008 video game Star Wars: The Force Unleashed and 2010 sequel Star Wars: The Force Unleashed II. He also voiced Darth Sidious (Emperor Palpatine) in the first game, and reprised it for the games Disney Infinity 3.0 and Battlefront and for the original season 2 premiere of Star Wars Rebels; however, in 2019, the role was re-dubbed by Ian McDiarmid who portrayed Palpatine in the films and in Rebels season 4. For Star Wars: The Clone Wars, Witwer had also vocally 
Title: Matt Sloan (voice actor)
Content:  As a voice actor, Sloan played Darth Vader in Soulcalibur IV. Sloan went on to reprise his role as the voice of Darth Vader in the LucasArts video games Star Wars: The Force Unleashed, and Star Wars: Empire at War: Forces of Corruption. He also appeared as the voice of Darth Vader during an episode of Deal or No Deal. Sloan also played Vader for the comedy short promoting TomTom devices. He returned as Vader for Star Wars: The Force Unleashed II. In 2012, Sloan voiced Darth Vader in both Lego Star Wars: The Empire Strikes Out and Kinect Star Wars. In 2015, Sloan returned to voice Vader in Disney Infinity 3.0, Star Wars Battlefront, Star Wars Battlefront II and multiple Lego Star Wars shorts and television series, as well as providing his voice for a sketch in the final episode of The Daily Show with Jon Stewart.
Title: Rogue One
Content:  C-3PO, and R2-D2, respectively; Vee is uncredited for his role. James Earl Jones also reprises his role from previous films as the voice of Darth Vader, who is physically portrayed by Spencer Wilding during the meeting with Krennic and aboard the Star Destroyer, and by Daniel Naprous for the end scene. Grand Moff Tarkin and Princess Leia Organa are played by Guy Henry and Ingvild Deila, respectively, with the digital likenesses of Peter Cushing and Carrie Fisher superimposed. Henry also provides the voice for Tarkin, while archival audio of Fisher is used for Leia. Angus MacInnes and Drewe Henley are featured as Gold Leader Dutch Vander and Red 
Title: Hayden Christensen
Content:  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 armour worn by David Prowse. Lucas agreed, and a suit was engineered to fit Christensen's frame, even including extensions to allow for the actor to attain Vader's 6 ft height. His voice as the "robotic" Vader, however, was dubbed over by James Earl Jones, who first made the voice famous in the original trilogy. Stock footage of Christensen was used in the 2004 DVD-release edition of Return of the Jedi, where he was inserted to replace Sebastian Shaw as the force ghost of the redeemed Anakin Skywalker. This was 

Question: who was the voice of darth vader in the original star wars movie?
Answer: James Earl Jones.