کاکوس
Sign in to savethumb|upright=1.5|Hercules killing the fire-breathing Cacus, engraving by [[Sebald Beham (1545)]] In Roman mythology, Cacus (, derived from κακός, meaning bad) was a fire-breathing giant and the son of Vulcan (Plutarch called him son of Hephaestus). He was killed by Hercules after terrorizing the Aventine Hill before the founding of Rome.