In O Brother, Where Art Thou?, Chris Thomas King plays the young blues musician Tommy Johnson, who sells his soul to the devil for the chance to become a legendary guitar player.
"Oh, son," says Tommy's new acquaintance, Delmar, upon learning of the deal. "For that you sold your everlasting soul?"
"Well," replies Tommy, "I wasn't usin' it."
Obviously, King wasn't being typecast in the role. King's musical accomplishments reveal nothing but soul.