ENTERTAINMENT WEEKLY: What was the part about playing the character?
NATHAN FILLION: It was my favorite job ever. What wasn’t great about it? I got to wear a low-slung holster. I got to ride horses. I got to have a spaceship. I got to act mean and curmudgeonly. [Creator Joss Whedon] is really good at kicking characters in the nuts so the other characters would have laughs at my expense and that was great too.
If Castle had its series finale tomorrow and Fox said to you and Joss: “We screwed up, let’s try doing Firefly again.” Would you do it?
Yes. Yes. I would examine very closely Fox’s reasoning — I’m a little gun-shy. If I got $300 million from the California Lottery, the first thing I would do is buy the rights to Firefly, make it on my own, and distribute it on the Internet.