From 11:00PM PDT on Friday, July 1 until 5:00AM PDT on Saturday, July 2, the Shmoop engineering elves will be making tweaks and improvements to the site. That means Shmoop will be unavailable for use during that time. Thanks for your patience!
Dr. Thomas Stockmann is the undisputed protagonist of the play. Without the Doctor there'd be no play at all. It is his discovery that disrupts the world of the play. It is his quest to reveal the truth of the polluted Baths that drives the action of the play. Everyone is reacting to what he does. Dr. Stockmann is a textbook example of an active protagonist, around whom everything in the play revolves.