Shonda Rhimes, Kurt Sutter, Steven Levitan
In our opinion, showrunners are some of the most fun, engaging people to follow on Twitter. And it's not exactly surprising: they're paid to be creative. Not only do they make us laugh (i.e. @VDOOZER, Cougar Town's Bill Lawrence) but they often offer behind-the-scenes photos, scoop, and insight from on set.