CT-5631/3165, nicknamed Mellie, later changed to Meller was a clone trooper in the First Division of the Great Clone Forces during the Second Clone Wars. He earned his name through his excellent performance with melee weapons, besides holding a great reputation when it came to close-quarter combat. Mellie was part of the Old Breed group as he was an early member of the first batch of clone troopers. Like few other clone troopers, Mellie survived Order 51 through defection. He became part of the Clone Rebel Alliance, changing his name to Meller, and fought in the Third Clone Wars.