Lieutenant Tam Velorek was a Peacekeeper Military Tech officer and a specialist in Leviathan Pilots assigned to Moya while she was still under Peacekeeper control. Two cycles before John Crichton's arrival in the Uncharted Territories, Velorek was assigned to Captain Bialar Crais' project to impregnate a Leviathan with a gunship. His primary duty was to work with and eventually replace Moya's first uncooperative Pilot with a younger, more willing Pilot. He later oversaw this second Pilot's forced bonding with Moya, a complicated and difficult process. His expertise extended to knowing at least some of the Pilot's language.