I am from Greece and I know plenty things about those Gods (The Olympians) but as i told you, ancient Greeks never believed in Gods they only named the elements of nature and worshiped them!
God of Thunder and Weather -> Zeus
God of the Seas -> Poseidon
God of Wisdom and Prudent War -> Athina
God of War -> Mars, Ares
God of Underworld -> Hades
...
...
From what I am saying I want to conclude that the 12 Gods Of Olympus were not real Gods with the form of a human. They were just element of nature that Ancient greek worshiped them.
I think that I made you to understand what i mean :P