Spun this off into its own thread,
I forgot about Count Vidian. He was definitely a Vader surrogate, but he was an evil jerk. A good example of how oddly you are treated when you are more machine than man.
speaking of Vader Knock-offs, a Facebook group Brainstorm does a new art challenge every month, and this month's is a great GM resource: Redesign Darth Vader and/or stormtroopers. Need a Sith Lord that looks like Vader? Here you go!
You can see others here: https://www.facebook.com/groups/268049636714215/