CC-5052, nicknamed «Bly,» was an Advanced Recon Commando and clone trooper officer who held the military rank of Clone marshal commander in the 327th Star Corps of the Grand Army of the Republic during the Clone Wars. A capable leader, Bly enjoyed a close working relationship with his Jedi commanding officer, Jedi General Aayla Secura, who held the dependable commander in high esteem. Together, they fought against the droid armies of the Confederacy of Independent Systems on numerous worlds across the galaxy, including Quell, Maridun, and Felucia.

Like all clone troopers, Bly was cloned by Kaminoan scientists using the human blood samples provided by the bounty hunter Jango Fett, which ultimately resulted in the creation of an army of genetically-identical soldiers. Within a decade of their inception, Bly and his fellow clones were adopted into the service of the Galactic Republic, leading to the pan-galactic civil war known as the Clone Wars. During the first year of the conflict, Bly and Secura’s 327th Star Corps fought alongside the 501st Legion, led by Jedi General Anakin Skywalker and CT-7567 Clone Captain «Rex,» in the Battle of Quell. Despite their efforts, the Separatist forces proved victorious, forcing Bly and his comrades to retreat to the Maridun system. While awaiting rescue, they discovered Separatist activity on Maridun and General Lok Durd‘s plan to test a dangerous weapon on a local village. Though far outnumbered and outgunned by Lok Durd’s battle droids, the Jedi, the clones and Bly successfully defended the Lurmens until the arrival of the Republic Navy.

Bly, Secura and their troops participated in the Outer Rim Sieges during the final months of the Clone Wars. At the Battle of Felucia, Bly was ordered by Supreme Chancellor Sheev Palpatine to execute Order 66—the clone protocol calling for the destruction of the Jedi Order. Though loyal to Secura, his programming compelled him to obey the chancellor without question. Secura, who was always reassured to have Bly by her side, died as a result of being repeatedly shot in the back by the clone troopers that had served under her command for years. Afterward, Palpatine proclaimed himself Emperor of the First Galactic Empire.