inciter

a person who stirs up public feelings especially of discontent the governor warned that inciters of mob violence would be dealt with harshly Synonyms demagogue (also demagog), exciter, firebrand, fomenter, incendiary, agitator, instigator, kindler, provocateur, rabble-rouserRelated Words demonstrator, marcher, objector, picketer, protester (or protestor); advocate, apostle, backer, booster, champion, exponent, persuader, promoter, proponent, reformer, reformist, supporter; alarmist, extremist, insurgent, insurrectionist, radical, rebel, revolter, revolutionary, revolutionist, subversive, troublemaker; goader, prodder, prompter, provoker; agent provocateurNear Antonyms peacemaker, reconciler, uniter