That's pretty neat, GM! Well done. :) Having said that, you do still want Wingreen's voice completely substituted for ESB though, right? (I forget)
Speaking of Jason Wingreen, I just found out he was the actor who played Dr. Linke in the original Star Trek episode "The Empath". So he's one of the few people to appear in both franchises. I don't know who else there may be.