Josh Dun

'Twenty One Pilots' is a play by Arthur Miller, who also wrote 'All My Sons.' It's about a guy who's creating and developing parts for airplanes in war time, when it comes to his attention that some of these parts were faulty.

Even fictional characters sometimes receive unwarranted medical opinions. Doctors have diagnosed Ebenezer Scrooge with OCD, Sherlock Holmes with autism, and Darth Vader with borderline personality disorder.