""The only character I know for sure is returning is my friend R2-D2. He hasn't stopped beeping about it," the 62-year-old actor said.
Hamill also answered users' questions about his favorite lightsaber color, his first meeting with Ford and the franchises surprising success.
From darthrevan: Older Luke Skywalker: beard or no beard?
Well based on what has gone before, I have a feeling it's beard, but I have no confirmation of that. My wife said if you grow a beard, you'll cover up your cleft chin. That's not something that occurred to me. But I can only guess. I've never read any of the novelizations or anything but someone said to me, 'you're married, you have children.' Based on Obi-Wan I would have guessed I'd be living in an igloo or something. He was more spiritual, he didn't have a wife or children. And when you find out one of the only eligible women in the galaxy is your sister, it really cuts down on your odds of hooking up with anyone. But that's not what these movies are about. The charm of the trilogy is it appeals to the child in all of us. It goes back to playing in your backyard. It's very primal, it's good versus evil, a high sense of adventure.
From tmoss726: Did you ever expect Star Wars to be such a critical success?
I didn't expect it to be a critical success, I thought people would like it, because it took so many elements from movies we were familiar with, pirate, cowboy movies, war movies, and added humor. That's the thing that got me. Science fiction usually isn't funny. They have an 8 ft furry dog driving a spaceship, he's naked except headphones, that's funny. Even if it doesn't get great reviews it'll be a cult movie. People will go watch it at midnight because its so unique. I thought it would be popular but never thought it would be on the cover of Time magazine.
From seamslegit: What is your favorite Lightsaber Color?
I just worked with Samuel L Jackson and he reminded me he had a purple lightsaber, which nobody had, I thought that was cool that he got his own color. My favorite is green, I'm happy with what I had. You don't need to give me lavender or raw umber or whatever.
From Vorlux: Who was your hero when you were six?
I used to watch superman on TV, and i loved the idea of flying. i used to wonder if i wanted to fly like superman or peter pan. Peter Pan looked like it was more fun, superman was so bolt straight. And i loved Zorro, the old Disney Zorro. What is it with guys with secret identities who go out and fight crime? And James bond. I loved all that stuff.
From mercatormapv2: What was your reaction when you first met Harrison Ford?
Well I'd seen him in American Graffiti, and I did the screen tests with him. We just fell into our character roles. Luke idolizes Han Solo, it was such a great role because Hans was the cynic, he was the modern role in this fairly tale. It was just the right element in the stew for all the cynics in the audience.
I just thought Harrison was fantastic, so perfect for the part. We fell into the role of mentor/student. they couldn't have made a better choice, and he can do no wrong. He's got a great sense of humor, it was fun to try to make him laugh.
Notable deaths of 2014 [PHOTOS]