Daedalus

Daedulus was the inventor of the Labyrinth, and was the genius of his time. After comitting crimes against bith gods and other mortals, he fled into the Labyrinth, made a new body for himslef to avoid dying, and vanished form history for a long time. He resurfaced when Percy and Annabeth figure out that Quintus is really Daedulus in his 5th body.