The Titans

Before the Olympian gods there were the Titans. The Titans were overthrown by Zeus before the creation of mankind.

Cronus, Gaea, Uranus, Rhea, Oceanus, Tethys, Hyperion, Mnemosyne, Themis, Iapetus, Coeus, Phoebe, Thea, Prometheus, Epimetheus, Atlas, Metis