The wikipedia article-of-the-day sometime last week was Marshall Applewhite, leader of the Heaven's Gate cult that all committed suicide almost twenty years ago when the arrival of the Hale-Bopp comet convinced them that it was time for them to go up to the spaceship and get new bodies. Something like that.
Looks pretty much schizoaffective disorder, bipolar type to me, at least from a distance. Actually pretty much just from his photograph one might take that as a working guess.
Performing arts, check. (Sorry. Includes me, too, y'know.)
Fluidity of beliefs, changing repeatedly, check.
Charm based on intensity that is a bit much for many folks, check.
Lack of insight or willingness to consider alternatives, check.
Here's an interesting bit about psychotic prophets. A large part of their prophecy revolves around - them being the prophet. That's all. Believing in them. One of my patients today assured me quite angrily that I would be kneeling in front of him someday. He is furious at his wife for being "in rebellion" for fearing that all his money-and-fame schemes won't work, when the Bible clearly teaches not to fear. Believing in him is really the only teaching of this prophet.
It's interesting because that's where God starts out in Genesis, and where Jesus starts out when he starts his ministry. Consider that Lot gets just about nothing right except somehow clinging to this one God YHWH. Yet that is good enough, at least in that stage of the covenant.
The difference is that Genesis gives way to Exodus, and a whole lot of learning to understand just what is important to this God; and Jesus moves pretty quickly to deeper lessons. Yet perhaps mere identification is the only start we can make.