Dreyo was Moran's smuggling partner on Coruscant. Once the Empire formed, Dreyo left Moran's smuggling operations because of the Empire's crack down on crime. Moran believed Dreyo was unaware he was alive by 9 BBY.
In 9 BBY, Jedi Knight Cal Kestis found a datapad mentioning Dreyo in Moran's room in Pyloon's Saloon on the planet Koboh.
Dreyo was first mentioned in Star Wars Jedi: Survivor, which was released on April 28, 2023.