Aktaion, was the son of the minor god Aristaeus (son of Apollo and the nymph Kyrene) and Autonoë (daughter of Kadmos, the founder of Thebes in Boeotia); he was a Boeotian hero and hunter. Aktaeon accidentally saw Artemis (goddess of wild animals, vegetation, and childbirth) while she was bathing on Mount Kithaeron.
He stopped and stared, amazed at her ravishing beauty. Once seen, Artemis got revenge on Actaeon: she forbade him speech — if he tried to speak, he would be changed into a stag. Upon hearing the call of his hunting party, he cried out to them and immediately was changed into a stag and was pursued and killed by his own 50 hounds.
According to other version, he offended Artemis by boasting that his skill as a hunter surpassed hers.