Aboard Moya, she learns to think beyond the strict, militaristic confines of her Peacekeeper upbringing. Born in service aboard a Command Carrier, it is the only life she has known, and thus is very well skilled in hand-to-hand and weapons combat. She also becomes a valuable and important member of Moya's crew, and a companion and romantic interest to Crichton during the series. Aeryn evolves from a cold, detached soldier into a valuable friend and crewmate. Her relationship with John Crichton also evolves, and Aeryn ultimately becomes a compassionate wife and loving mother at the end of the show. They name their son D'Argo Sun-Crichton, after their dear friend who seemingly lost his life in the Peacekeeper Wars.Aeryn Sun/ˈɛrɪn ˈsʊn/, played by Claudia Black, is a former Peacekeeper pilot and officer. Although she appears to be human, she is in fact Sebacean, a species indistinguishable from humans in external appearance. At the time John Crichton appears through a wormhole in the beginning of the series, Officer Aeryn Sun is in her Prowler battling to retake the Leviathan Moya, which has been seized by escaping prisoners Ka D'Argo, Rygel, and Pa'u Zotoh Zhaan.