Actors Who Never Recovered From Their Most Distressing Roles

Jeffrey Dean Morgan in The Possession

He may be tough as nails in The Walking Dead, but Jeffrey Dean Morgan had quite the fright on the st of The Possession. He and his co-stars were so disturbed by the real story of the dybbuk box that they did everything in their power to keep any malicious spirits away. Although Morgan described himself as a skeptic, he admitted that there were a number of unexplained happenings on set.

"Lots of lightbulbs exploding," Morgan said. "Just overall kind of creepiness... 'Don't mock the box' was sort of the mantra that we lived by while filming this."