anarchist β An anarchist is a person who believes in anarchism.
demagogue β If you say that someone such as a politician is a demagogue you are criticizing them because you think they try to win people's support by appealing to their emotions rather than using reasonable arguments.
firebrand β a piece of burning wood or other material.
leftist β a member of the political Left or a person sympathetic to its views.
malcontent β not satisfied or content with currently prevailing conditions or circumstances.
propagandist β a person involved in producing or spreading propaganda.
radical β of or going to the root or origin; fundamental: a radical difference.
reactionary β of, pertaining to, marked by, or favoring reaction, especially extreme conservatism or rightism in politics; opposing political or social change.
troublemaker β a person who causes difficulties, distress, worry, etc., for others, especially one who does so habitually as a matter of malice.
heretic β a professed believer who maintains religious opinions contrary to those accepted by his or her church or rejects doctrines prescribed by that church.
incendiary β used or adapted for setting property on fire: incendiary bombs.
inciter β to stir, encourage, or urge on; stimulate or prompt to action: to incite a crowd to riot.
instigator β to cause by incitement; foment: to instigate a quarrel.
rabble-rouser β a person who stirs up the passions or prejudices of the public, usually for his or her own interests; demagogue.
rebel β a person who refuses allegiance to, resists, or rises in arms against the government or ruler of his or her country.
reformer β a person devoted to bringing about reform, as in politics or society.
revisionist β an advocate of revision, especially of some political or religious doctrine.
revolutionary β of, pertaining to, characterized by, or of the nature of a revolution, or a sudden, complete, or marked change: a revolutionary junta.
ringleader β a person who leads others, especially in opposition to authority, law, etc.: a ringleader of revolutionary activities.
disrupter β to cause disorder or turmoil in: The news disrupted their conference.
sparkplug β to lead, inspire, or animate something or someone.
agitator β If you describe someone involved in politics as an agitator, you disapprove of them because of the trouble they cause in organizing campaigns and protests.
fanatic β a person with an extreme and uncritical enthusiasm or zeal, as in religion or politics.
hothead β an impetuous or short-tempered person.
politician β a person who is active in party politics.
in flames β to kindle or excite (passions, desires, etc.).