The term 'agitator' is used to describe a person who stirs up trouble or causes unrest. This can include provocateurs, anarchists, demagogues, disrupters, revolutionaries, rilers, incendiaries, rebels, fighters, propagandists, catalysts, instigators, troublemakers, firebrands, and fomenters. Provocateurs are people who deliberately provoke or incite others, while anarchists are people who reject all forms of authority and government. Demagogues are leaders who use popular prejudices and false claims to gain power. Disrupters are people who cause disruption or chaos, while revolutionaries are people who advocate or support radical change. Rilers are people who stir up trouble or cause unrest, while incendiaries are people who deliberately set fires. Rebels are people who oppose authority or established rules, while fighters are people who engage in physical combat. Propagandists are people who spread ideas or beliefs to influence others, while catalysts are people who cause or accelerate change. Instigators are people who provoke or incite others to action, while troublemakers are people who cause trouble or disruption. Firebrands are people who stir up trouble or cause unrest, while fomenters are people who stir up trouble or cause unrest.