The book is about zombies, in that it is the over-arching theme, but what's going on is the story of these people and how these survivors deal. I think that's so much more of an interesting story, and that's what really gets and hooks these readers into the book and the show. It's a mix of fans of drama, fans of AMC, fans of horror and fans of Frank [Darabont]. It's a lot of people just coming together and realizing a genre doesn't have to be fixed in one specific detail.

I can't justify taking one minute of free time for myself. I'm restless to do things. Anything! Hell, I'll watch Top Chef and I think, "God, maybe I could be a chef," I'll watch a dancing show and think, "God, maybe I can be a dancer." I mean, that's how I got into acting. I visited an improv show and thought, "Hey! I could do this." It sounds like arrogance, but I don't think it is... just an ambition to reach out and touch something new.

It is tough, every time. The ensemble is great. I would always ask Andrew, "Is this how Hollywood is? Is this how every TV show and movie is?" And he was like, "No, dude. This is not. Do not get used to this. Be thankful that this is how your first gig is."

Confidence. That's huge as an actor. Confidence can get you a long way. Maybe it's a cultural thing, being Korean, but my first reflex has always been to exude humility - but it doesn't help you in acting. For acting, humility isn't the best thing. It'll weaken your work. So it's a head game for me. "Can I really be confident in knowing my skill set is down? Can I perform like I own this role?"

I grew up in Michigan, so I played hockey, football and basketball. I played a little bit of lacrosse, too. My brother played more lacrosse and ran track.

Yeah, it's been pretty gnarly. It's fun. It can only be fun, unless you're really squirmy about that. Honestly, during that guts episode, they didn't tell Andrew and I anything. They just put trenchcoats on us and said, "All right, just stand right here and we're going to put this stuff on you."

You can say that all you want, but even in the little time that I've been in this industry, I've learned that it isn't exactly what you expect, so you've got to have a level head. I thought people would dig it. I thought people would enjoy it. It's AMC. I thought people would be fans. But, I did not think we would be the best new show on television.