This clone sergeant was a clone trooper sergeant who fought for the Grand Army of the Republic during the era of the Clone Wars. This particular clone took part in the Battle of Muunilinst under the leadership of Obi-Wan Kenobi, and after the battle on that planet concluded, he and the rest of his platoon were instructed by the Jedi Master to accompany Jedi Commander Anakin Skywalker to the location of Yavin 4.
This clone trooper sergeant was among the many clone troopers who were created on Kamino using the DNA of the bounty hunter known as Jango Fett, with the intention that they would serve as soldiers for the Galactic Republic. Following the Battle of Geonosis, the sergeant participated in the Battle of Muunilinst, a battle that he survived and that resulted in a Republic victory. Shortly after this battle, Asajj Ventress flew over the city of Harnaidan in her Ginivex-class starfighter, pursued by Anakin Skywalker. She passed over the sergeant, along with numerous other clones and Obi-Wan Kenobi, who were stationed in the city. After Skywalker refused to cease his pursuit of the Dark Acolyte, the Jedi Master gave the clone sergeant and his platoon orders to follow the Padawan. He and his men followed these orders, departing Muunilinst without delay in a CR-20 troop carrier.
A short time passed after Skywalker landed on Yavin 4 and began searching for Ventress, before the clones' troop carrier landed near the Azure Angel. The sergeant and his troops then disembarked from the ship. He instructed his platoon to secure the surrounding area. Skywalker then met with them at the landing site and addressed the sergeant, who stood at attention and saluted the Jedi Padawan. Skywalker asked if Kenobi had ordered him to follow. The sergeant confirmed that this was the case, much to the Jedi's annoyance with his Master. Nevertheless, Skywalker instructed him to have some men guard their ships and to take the rest to search the jungle for Ventress. The clone complied and followed his Jedi commander in the hunt for the assassin.
However, as the sergeant and the rest of the platoon spread out to cover more ground, Ventress eliminated them one by one before destroying their ship, as well as Skywalker's, and attacking the Jedi himself.
This clone trooper sergeant was equipped with standard Phase I armor and made use of a DC-15A blaster rifle.