Nathan Fillion is proud to be a geek. When he’s not filming ABC’s mystery-comedy Castle, he can often be found viewing a loop of sci-fi and action movies (Avatar, the Star Trek franchise) in his trailer. “I’ve watched them a million times,” says the 39-year-old native of Edmonton, Canada, who has played the evil Caleb on Buffy the Vampire Slayer and a space captain in the series Firefly and its movie spin-off, Serenity. Kate Meyers caught up with him back on planet Earth.

Let’s hear a few more of your geek credentials.

I have a trophy case that contains all the action figures ever made of me. It also has items I’ve stolen from my movies, like three guns and holsters from Serenity. And a steampunk lightsaber [the Star Wars weapon, built as it might have been in the 19th century] that somebody made me.

I hear you have a man cave as well.

Yes, it has a big ol’ TV and one of those gadgets that let you press a button and watch in 3-D with the glasses on. It’s also got an Xbox; I’m a Halo: Reach guy. And artists I’ve met at sci-fi conventions have sent me some beautiful posters from stuff I’ve done. I’m better-looking in them than I really am, so those are good to have. [Read The Rest Here]