Dreyo served as Moran's accomplice in smuggling activities on Coruscant. Following the rise of the Empire, Dreyo departed from Moran's smuggling enterprise due to the Empire's intensified efforts to suppress criminal activity. Moran held the conviction that Dreyo was under the impression he had died, as of 9 BBY.
During the year 9 BBY, the Jedi Knight known as Cal Kestis discovered a datapad containing information about Dreyo. This datapad was located within Moran's quarters inside Pyloon's Saloon, situated on the planet Koboh.