Fearmongers are characters that exist to spread fear and often feed on it, they may be emotional vampires or demons or simply evil-minded people who have a fascination with fear: fearmongering is also a good way to install loyalty into terrified populations and can be utilized by evil rulers or dark lords.
Fear is a powerful motivator.
~ Mr. Grasping telling his co-owners on how fear can help them be successful.
Fear always works! And I'll dart every predator in Zootopia to keep it that way!