One of my writing projects is a screenplay about a lone survivor in a zombie outbreak who just moved into a town looking to scavenge food. But not all seems right when the town mysteriously has little or no zombies at all. I have not gotten to this point yet since the script is only 20 pages in but there will be a character introduced that is supposed to be a cult leader of the townspeople who have believe transformation into a flesh eater is forgiveness to one's sins or crimes against humanity. While I am developing the ideology of the cult, I need to work on the leader. So it could either be a he or she. But what I am trying to develop is the leader's personality traits. Should the cult leader have a mental disorder? Psychopathic? Or subtle but completely dangerous? I also don't want to make this antagonist cliche with caricature dialogue. Originally, one of the cultists was talking like he was reciting a poem but I think I messed that up because of how stupid it sounded. I don't want that kind of dialogue to go to the cult leader itself. So need help here, making a complex antagonist.