Master Sifo-Dyas said:
Since he wasn't too fond of not getting a chance to deliver Vader's lines in a redub, I wonder how he felt about Sebastian Shaw representing Vader's true face instead of him.

LOL, yeah poor guy. Sorry David, but we are going to have to have someone else dub your lines, sorry pal, your voice just isn't good enough.

Two films later... Sorry David, but we are going to have to have someone else wear the suit for the final scene, sorry pal, your face just isn't good enough, we'll be using a face double.