Lieutenant Kirlix was the Prowler Pilot Commander for the former Peacekeeper crew of the Leviathan Cilla under Captain Clow Zobrek. She led the air defense at the Pilot homeworld Doien, strafing Grennij on the ground and engaging Grennij vessels in orbit. She later led an assault on a Grennij vessel that was armed with a Kkore cannon, losing all but two Prowlers in the attack. After John Crichton discovered a vulnerability in the Grennij ship, however, he and Ka Jothee joined the fight in their own Prowlers. Working in tandem, the four Prowlers, along with a useful distraction from the Luxan warship Ha'Mok, hit the Grennij vessel in its vulnerable area, destroying it.