Trey Courser, a male Human who specialized in the creation of machines and droids, served with Wraith Squadron. He participated as a member of the team tasked with investigating the potential involvement of General Stavin Thaal in the Lecersen Conspiracy. During 44 ABY, he was instrumental in the plot to implicate Thaal, accomplished by impersonating the General using a neoglith masquer crafted by his fellow Wraith, Viull "Scut" Gorsat. While disguised, he aided in the abduction of the celebrated singer Ledina Chott, Thaal's intended bride. This operation to ascertain Thaal's culpability proved fruitful, leading to his apprehension as Thadley Biolan, with authorities believing that Biolan was impersonating Thaal and that the genuine Thaal had perished.
Trey, a Human, possessed a noticeably muscular build and attractive features, characterized by a light complexion and brown hair that would lighten to blond when exposed to the sun. He was the dedicated machine technician for Wraith Squadron and exhibited a cheerful and playful demeanor. His penchant for flirting was evident in his interactions with the female members of the squadron, particularly Jesmin Tainer.