The actors of "The Walking Dead" are living in constant fear of getting that dreaded phone call from the writers letting them know that their character is about to die, and that they're being sent to zombie school.
Both Norman Reedus (Daryl Dixon) and Andrew Lincoln (Rick Grimes) have stated that they are terrified that their characters will be killed because, "No one is safe." With very few members of the original cast still on the show, it's no wonder that they are afraid that they will be the next ones to go.
Is it wise for producers to constantly keep death of an actor's character in their minds at all times? Does it create more humble personalities on set? Do the actors channel their fear into their work?
I'm not entirely sure, all I know is that if either of the two main show runners die, they'll lose a lot of fans.