Peter Popoff might be the most famous one, but there's loads of these assholes. They're basically the guys who you see on TV smacking people on crutches in the head, telling them the LAAAAAHD has healed them. These folks are a pretty decent mix of plants and people being taken advantage of. James Randi's got a good book on the subject which is definitely worth checking out, The Faith Healers, all about these swine and the methods they use. It's sort of like Psychic Surgeons only minus the magic trick. Fuck these guys so hard.