Synonyms of hellhound

1 Syllable
thug, wretch, con, scamp
2 Syllables
scoundrel, outlaw, hoodlum, outcast, rogue, sinner, rounder, culprit, convict, varlet, ruffian, villain, rowdy, rascal, jailbird, wrongdoer, felon
3 Syllables
prisoner, delinquent, rapscallion, evildoer, lawbreaker, transgressor
4 Syllables
malefactors, malefactor