1) Bad hat 2) Brawler 3) Disorderly crowd member 4) Disorderly one 5) Donnybrook participant 6) Frondeur 7) Group protest participant 8) He disturbs the peace 9) Hooligan 10) Insurgent 11) Lawless dissident 12) Lawless one 13) Lawless type 14) Looting type 15) Loud reveler 16) Many a revolutionary 17) Mayhem participant 1) Frondeur 2) Rebel 3) Stoner 
• (n.) One who riots; a reveler; a roisterer. • (n.) One who engages in a riot. See Riot, n., 3.
Ri'ot·er noun 1. One who riots; a reveler; a roisterer. Chaucer. 2. (Law) One who engages in a riot. See Riot , noun , 3. 
[n] - troublemaker who participates in a violent disturbance of the peace
noun troublemaker who participates in a violent disturbance of the peace; someone who rises up against the constituted authority