M3-8Z was an astromech droid in service of the Galactic Republic at the time of the Galactic War. During the Conquest of Makeb, it was sent as a courier by Republic Strategic Information Service Officer Deena Riss to help her enlist the services of the Republic strike force regarding the Shroud. The droid could be found at the Coruscant Spaceport, Carrick Station and Giant's Spear mesa on Makeb