Timmser was a tall Human female with short blond hair. She was a tri-fighter pilot flying with the Khuiumin Survivors pirate gang, specifically their Rock Squadron. Prior to this she had been a member of Riistar's Raiders, another band operating with the Invids and stationed on Courkrus. When Corran's other alias—the mysterious "Ghost Jedi"—began making its presence felt among the Aviary, Timmser, along with Caet Shrovl, fled the planet in a pair of tri-fighters that had been outfitted with salvaged hyperdrives.