In addition to the espionage and humor, the show is about relationships. There's Chuck and his best friend, Morgan (Joshua Gomez), not to mention the rest of the Buy More crew (Vik Sahay, Scott Krinsky, C.S. Lee, Mark Christopher Lawrence). There's Chuck and his sister, Ellie (Sarah Lancaster), and her boyfriend (Ryan McPartlin), whose favorite word gives him the nickname "Captain Awesome." And then there's Chuck and Sarah, who play boyfriend and girlfriend as their cover, but whose relationship might not be purely professional or fictional. Levi is charming in the title role, Baldwin is not too far off from his Firefly character of Jayne (that's a good thing), and the tough-yet-tender Strahovski was a breakout star during the show's opening season on NBC in 2007-08. Much like The X-Files' Gillian Anderson became the thinking man's crush, Strahovski became a fantasy for nerds everywhere, especially after appearing in the famous Princess Leia slavegirl outfit. Also appearing in season 1: Gwendoline Yeo as a Lucy-Liu-lookalike spy, Matthew Bomer as Bryce Larkin, Rachel Bilson as Chuck's sandwich-making love interest, and Ivana Milecivic as Casey's former flame. --David Horiuchi