Over the course of six movies, the role of Darth Vader was played by several people. In the early trilogy that released in 1977, actor James Earl Jones was the voice for Vader while David Prowse played the regular scenes and Bob Anderson performed Vader in fight scenes. Sebastian Shaw plays the role of the unmasked Vader and the deceased but redeemed Darth Vader in his pioneer form, Anakin Skywalker.
These and other interesting facts in this Star Wars infographic from the folks at specialcabledeals.com.
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