Damn. I met him at Phoenix ComicCon about 4 years ago. He was very nice. I got him to sign an autograph for me that said, "To Sexyfan47, Imperial Officers do it while they're choking."
He also played the main police detective in Who Framed Roger Rabbit?
My friend Mike was the only one at the convention who got an autograph with his Roger Rabbit
character instead of his Star Wars
Interestingly, although all the toys & expanded universe stuff refers to him as "Admiral Motti," he's actually billed as "General Motti" in the credits of the film itself.