In the original Star Wars, when Princess Lea and other actors were having conversations with Darth Vader, they weren’t talking to James Earl Jones — his voice was dubbed during post-production. The voice of David Prowse came from beneath Vader’s helmet. Prowse had a West Country English accent which earned him the on-set nickname, according to Carrie Fisher, of “Darth Farmer.”
Fisher was a guest on The Jonathan Ross Show, alongside comedian Russell Howard, and Howard happens to be from the West Country. The host decided it would be fun to see what a British Darth Vader may have sounded like speaking with Princess Leia.
It wasn’t bad but..well…you can’t mess with success. Or the voice of James Earl Jones. I often wish JEJ would narrate my bowel movements. If he’s unavailable, Morgan Freeman. If he’s a no show, Fran Drescher.
Carrie Fisher Finally Gets Her Scene With English Darth Vader | Nerdist