Moya's pilot is only known by his species's name, which also describes his role on the ship. His real name, if he has one, is unknown. Pilots bond with biomechanical Leviathan spacecraft and become their helmsman, navigator, companion, and liaison to passengers. Once bonded, Pilots can survive only a brief period of time of separation from their Leviathans, and only when travelling in something made of a Leviathan's components (as in a transport pod). In bonding to Leviathans, Pilots sacrifice much of their life-span for the benefits of space travel, since Pilots can live well over a thousand years but Leviathans live only hundreds.