Coleet, a female of the human species, functioned as an intelligence operative for the Alliance to Restore the Republic throughout the duration of the Galactic Civil War. As a Rebel infiltrator stationed within the Arrth-Eno Prison Complex, she collaborated with another spy, Eneb Ray, on a scheme designed to eliminate Darth Sidious, the Galactic Empire's supreme leader. This assassination attempt was unsuccessful, and Coleet, alongside all other Rebel spies present on Coruscant with the exception of Ray, met her end when the Empire annihilated Arrth-Eno. This destruction served the dual purpose of eliminating the spies along with a contingent of incarcerated dissenting senators and simultaneously achieving a propaganda triumph against the Rebellion by falsely attributing the devastating explosion to them.