Other hyponyms of attacker include
ambusher,
avenger,
beast,
brute,
savage,
wildcat,
wolf,
bludgeoner,
bully,
hooligan,
roughneck,
rowdy,
ruffian,
tough,
yob,
yobbo,
yobo,
harasser,
harrier,
iconoclast,
marauder,
piranha,
predator,
vulture,
night rider,
nightrider,
raper,
rapist,
shedder,
spiller,
slasher,
stabber,
lapidator,
stoner.