Seeker was Tarm, a Galadorian youth who volunteered for the Spaceknight process. He could sent hunter-seeker missiles after his enemies. He was among the first Spaceknights to set foot on Wraithworld and was able to rescue Rom.
When the Spaceknights broke ranks and went towards different space directions, seeking the Dire Wraiths, Tarm was not alone. He partnered with his sister Scanner/Skera. They were much later found trapped by Ego the Living planet and rescued by Rom. Seeker, Scanner, Rom and Trapper returned to Galador together only to find the human population mostly slain by the second generation Spaceknights. Seeker joined the few survivors against this new Spaceknights and was killed in battle.