Crowley was a Master Sergeant in the Grand Army of the Republic, identified as female, who later became a member of the Rebel Alliance during the Galactic Civil War.
Following the conclusion of the Clone Wars, Crowley made her home on Sulon at the time of the declaration of the New Order. By the year 1 BBY, she enlisted in the Alliance to Restore the Republic to wage war against the Galactic Empire. She was among the twenty-six Rebel soldiers fighting alongside Morgan Katarn when Jerec launched his assault on the G-Tap. She alerted Katarn to the presence of an incoming assault ship, which Katarn identified as the same Corellian light freighter that had previously attacked his farm.