The Walking Dead

Actors who played walkers had to go through walker school to learn how to walk and move like walkers.

During an interview, Robert Kirkman claimed Norman Reedus (Daryl) originally auditioned for the part of Merle Dixon. He was rejected, but his audition so intrigued the show-runners that they created the part of Daryl just for him.

From season to season, the opening titles "decompose" more and more.