Prometheus (Hades)

Prometheus is the Titan of Foresight who sided with the gods in the Titan War. After the war he stole the gift of fire and gave it to mortalkind, and for this act he was punished by Zeus by being bound to a rock and having an eagle eat his liver, which would regrow the next day only for it to be eaten again, until freed by Heracles. Needless to say, this has rather soured his opinion on the Olympians, and now he has rejoined his kin in his vendetta against the gods, with Heracles occasionally assisting him as part of an oath.

Prometheus is the Guardian of Mount Olympus.