Castle
March 9, 10 p.m. ET on A-Channel and ABC
Firefly and Dr. Horrible alum Nathan Fillion could star in a show where he watches paint dry and we’d still tune in. (No, really – we even watched Fox’s hilariously bad Drive just because he was on it.) Luckily, Castle looks far more interesting than that. Fillion plays Richard Castle, a suave mystery writer who becomes an NYPD consultant when a series of murders appear to copy the exact plots of Castle’s novels. Of course, there’s some inevitable sexual tension between Castle and a female detective, but all we care about is Fillion showing off his sexy swagger. Swoon!