Tuatha de Danaans

The Celtic Gods, the Tuatha de Danaans are a race of superhumanly powerful extradimensional humanoid beings who were worshiped by the Celts, Gaels and Gauls. The Tuatha de Danaans dwelled in Avalon, a small "pocket" dimension adjacent to Earth; an interdimensional nexus between Avalon and Earth exists somewhere in United Kingdom and Ireland. The Celtic gods stopped having or actively seeking worshipers on Earth. However, certain gods, notably Leir still took active interest in the welfare of humanity.