Ben Burtt is an American sound designer and the winner of four Academy Awards . He has worked as sound designer on various films, including the Star Wars and Indiana Jones film series, Invasion of the Body Snatchers (1978), E.T. the Extra-Terrestrial (1982), WALL-E (2008) and Star Trek (2009).
He is most notable for creating many of the iconic sound effects heard in the Star Wars film franchise, including the "voice" of R2-D2, the lightsaber hum, the sound of the blaster guns, and the heavy-breathing sound of Darth Vader. Burtt is also known for "voicing" the title character, Wall-E, in the 2008 Pixar movie WALL-E. He also created the robotic sound of Wall-E's voice, along with all the other characters in WALL-E, and was the sound editor of the movie. (Extract from Wikipedia... See his full bio here...)