Foaly is a fictional character in the Artemis Fowl series written by Eoin Colfer. He is the technical consultant to the Lower Elements Police (LEP). He is the most intelligent centaur on and under the Earth, considers himself to be an unappreciated genius, and is the inventor of most of the advanced technology possessed by the fairy world, rivaled only by Opal Koboi.Little is known of Foaly's earlier life. There is no obvious indication of his age though he seems to be older than Holly Short.