Okay, so you've watched The Office over 20 times and think you're an expert, right? You probably are. But how well do you know the actors who brought the beloved characters to life? You might be a super-fan of Steve Carell and know a thing or two about John Krasinski, but let's test your knowledge on a handful of the show's stars. Take the quiz below to see how well you know the cast of Dunder Mifflin.