Nathan Fillion Talks Rookie Vs. Castle, Dr. Horrible Nostalgia and That Unexpected Firefly Spoof

Since Nathan Fillion is playing the LAPD’s oldest newbie cop in ABC’s fall drama The Rookie, he’s the butt of a lot of geezer jokes. And he’s fine with that. “It’s really hard to make people laugh,” he told Michael Ausiello during a visit to TVLine’s San Diego Comic-Con video suite Saturday. “It’s very easy to […]