Dude! Funny you should mention that. Once upon a time I was 'volunteering' at this sci-fi gathering when I saw the dude that played the bald biker. I went up to him and talked for a while. Then he slid me an autograph that said, "Dear Chris, please don't tell anyone about this... I don't want to lose my teaching job." Freakin' classic.
It's like the time I met that guy from crappy Nick Cage movie when he was in Vegas and he jumps out of the plane with the Flying Elvis'. I met the main Flying Elvis and he signed one of his lines on a autograph for me.
When I was around celebs I would occasionally ask for autographs and only then from obscure or lesser known celebrities that I like. They are the most fun to talk to.
That bald dude was in a few 80's movies, though I can't think of too many right now. Always was a weirdo, go figure. They should have took a mug like that and made him the hero.
I'm thinking he had a guest roll on Star Trek as one of the aliens, can't quite get the scene into my head. If I knew his name, I could check his bio at imdb.com
O.K., got it. I found the guy at IMDB.com and yeah, he was on Star Trek, I remember now, he was one of the Captains that met Picard on the planet surface and told him something was wrong with Starfleet. That was the two parter about the worm bugs that got on YO spine and made you do what they wanted.