James Earl Jones, a multi-award-winning actor of stage and
screen is best known for providing his deep voice for Darth 
Vader in the Star Wars franchise. His first big role was the
part of boxer Jack Jefferson in the film version of the
Broadway play The Great White Hope, 1967.

James Earl Jones and Jane Alexander in The Great White Hope

Jones as B-52 bombardier Lt. Zogg in Dr. Strangelove

 
                                     Darth Vader