The Twelve Titans: Oceanus and Tethys , Hyperion and Theia , Coeus and Phoebe , Cronus and Rhea , Mnemosyne , Themis , Crius , Iapetus Children of Oceanus: Oceanids , Potamoi Children of Hyperion: Helios , Selene , Eos Daughters of Coeus: Leto and Asteria Sons of Iapetus: Atlas ,