Days of our Lives is known for its bad boys and girls, but who is the worst of the worst? Stefano DiMera, Megan DiMera, and Kristen DiMera have all died and come back to life, but none of them have buried someone alive like Vivian Alamain did. Victor Kiriakis was also a bad guy, but now Konstantin, a blast from Victor's past, is causing trouble. However, the worst person on the show right now is Clyde, who is in jail but still causing havoc.