Heracles born Alcaeus (Ἀλκαῖος, Alkaios) or Alcides (Ἀλκείδης, Alkeidēs), was a divine hero in Greek mythology, the son of Zeus and Alcmene, foster son of Mythology · Lovers · Children · Hercules around the world. In the myths, Hercules was the son of Jupiter (Zeus Pater = Jupiter), the supreme god of Olympus, and of Alcmene, a mortal married woman. Juno (Hera, to the. Backgroud. Zeus is the son of the Titan King Cronos. Based on an offhand remark by Zeus, Cronos feared Zeus might one day overthrow him so he tried to eat Portrayed by : David Hoflin (in Once Upon a Time ).