The Most Evil Man In The World! Sylus Rothchild is Jeff Ahern's alter ego. Everything that's wrong with the world in a nice evil package. I started doing Sylus at improv shows years ago and then decided it was time for him to try the standup comedy circuit. Sylus Rothchild- The most evil man in the world, but he's trying to be nicer. Enjoy it or don't. He doesn't care.