Green, with the designation CT-53/21-8778, was one of many clones originating from the planet Kamino, all based on the Human male bounty hunter Jango Fett. These clones were created to serve in the Grand Army of the Republic. Green, like his genetic template Fett, stood at a height of 1.83 meters. During the Clone Wars, he held the rank of clone trooper sergeant within the Galactic Republic, leading Talon Squad, a specialized unit consisting of nine soldiers. The Grand Army's order of battle placed Talon Squad under the command structure that included the 2nd Platoon, Bacta Company, Hawkbat Battalion, 101st Regiment, 7th Legion, 327th Star Corps, 2nd Sector Army, and ultimately, Systems Army Alpha.
The character Green was initially introduced in Guide to the Grand Army of the Republic. This article, penned by Karen Traviss and Ryan Kaufman, appeared in Star Wars Insider 84 in September of 2005. Later, in 2008, The Complete Star Wars Encyclopedia included an entry specifically dedicated to CT-53/21-8778.
- " Guide to the Grand Army of the Republic " — Star Wars Insider 84 (First mentioned)
- The Complete Star Wars Encyclopedia , Vol. I ("Green (2)")