CT - 5597 CT - 5597 , nicknamed " Jesse , " was a clone trooper who served in the Grand Army of the Republic ' s 501st Legion during the Clone Wars . By the time of the Separatist invasion of Anaxes , Jesse had been promoted to the status of ARC trooper . Biography . Jesse was a clone of the bounty hunter Jango Fett and a soldier in the Grand Army of the Galactic Republic ' s 501st Legion . Battle of Saleucami . Jesse went with a squad of the 501st to track down Separatist General Grievous on Saleucami . When Captain Rex was wounded by a pair of commando droid sniper s , Jesse saw that they were on farm land and decided to take Rex to the farmstead . There , they met a Twi ' lek woman named Suu , who allowed them to leave Rex there to recuperate . Jesse was left in charge of the squad , and they continued through the wetlands to rendezvous with Jedi General Obi - Wan Kenobi and Commander Cody ' s AT - TEs . Jesse and his squad tried to shoot down a shuttle that was trying to pick up Grievous , but they failed in stopping Grievous from escaping . Battle of Umbara . Around 20 BBY , Jesse was with the 501st when the Republic launched their attack to retake Umbara . During the invasion , command of the 501st was given to Jedi General Pong Krell when Anakin Skywalker was called back to Coruscant . During their first attempt to take the capital , Jesse and the rest of the 501st were forced to fall back . When they were ordered to take an Umbaran airbase , Jesse and Fives , were a few that spoke against Krell ' s disastrous tactics . Jesse held his ground against the Umbaran Militia ' s mobile heavy cannons until Fives and Hardcase were able to destroy them . After establishing camp at the airbase , Jesse , Fives and Hardcase then worked on the Zenuas 33 Umbaran starfighter s , breaking the Umbarans ' codes . When Krell ordered a reckless attack on the capital to aid Kenobi , Jesse agreed with Fives that instead they could use the Umbaran starfighter s to blow up the Separatist supply ship that was causing problems . However , when Krell refused to agree their plan , Jesse continued to work on the starfighters with Fives and Hardcase . However , Krell stopped them and insisted that they concentrate on their attack . Thus , Jesse , Fives , and Hardcase decided to attack the supply ship themselves , without Krell ' s support . They told Rex about their plan , but he warned them that he would not be able to protect them if they were caught . Jesse , Fives , and Hardcase then took the starfighters , posing as a recon patrol , and made their way into the supply ship . They were unable to destroy the ship ' s main reactor with its shields up , but as they started to question their plan , Hardcase jumped out of his fighter and told Fives and Jesse to leave . Fives was reluctant , but Jesse convinced him to leave by telling him that he knew Hardcase , and there wasn ' t any point in staying . Jesse and Fives made a narrow escape while Hardcase stayed behind to blow up the ship , sacrificing himself in the process . When Jesse and Fives got back , they were taken to General Krell , where he had them punished and sent to the brig . Rex unsuccessfully argued with Krell to release Jesse and Fives , resulting in Krell ordering their execution . Just before the order came to fire , Fives spoke up against Krell ' s orders , and the firing squad missed Fives and Jesse on purpose . They were put back in the brig to keep them out of the way until they could be dealt with later . They were then freed by Rex , when he realized that Krell had set them up to attack the 212th Battalion squad under Waxer . Jesse , Rex , and the other clones then stormed the command center to arrest Krell for treason . However , Krell escaped into the jungle . Jesse , Rex , Fives and the other clones were then able to capture Krell , who revealed that he was a Separatist agent . Jesse then agreed with Fives and Rex that he should be executed . He then watched as Krell was executed by Dogma . Battle of Ringo Vinda aftermath . Following the battle on Ringo Vinda , Jesse and Kix then went to 79 ' s cantina , where Kix was given coordinates by Fives , who was wanted for attempted murder of Chancellor Palpatine . He then informed Rex and Skywalker of this . Jesse later became an ARC trooper . Battle for Anaxes . Jesse later participated in the Battle for Anaxes , a lengthy campaign between both the Galactic Republic and the Confederacy of Independent Systems over the planet of Anaxes . During the campaign , the Republic forces were initially left at a loss , with the Separatists seemingly able to predict the clone army ' s every next move . Suspicious , Rex Cody met with Skywalker and Mace Windu to discuss their recent failures . Rex theorized to the Jedi that a copy of his strategy algorithm could have fallen into the hands of the Separatists - potentially stolen from Echo , who held a copy of the algorithm in which he would check over after his supposed death during the Battle of Lola Sayu . Windu then ordered Rex and Cody to bring a small squadron of clones with them , which included Jesse and Kix to go behind enemy lines , and assault the Separatist data center to determine whether or not the enemy was in possession of Rex ' s algorithm . For the mission , Cody called for the help of Clone Force 99 , nicknamed , " The Bad Batch " , an elite group of clones with desirable genetic mutations . Rex and Cody then gathered Jesse and Kix to walk with them , and greet the mutated clones for themselves . As they arrived , the clone force flew their shuttle aggressively into the hangar , leading Jesse and Kix to exchange looks of contempt Cody subsequently introduced everybody , and the group stepped into the Republic gunship to be taken behind enemy lines . When Bad Batch member Crosshair questioned Rex ' s plans , Jesse stepped up to Crosshair in Rex ' s defense . Bad Batch member Wrecker then got involved , taking and lifting Jesse by the throat . Rex insisted Wrecker put Jesse down , but the situation didn ' t resolve until Bad Batch member Hunter told Wrecker to drop Jesse . Jesse then helped Rex and the Bad Batch invade a Separatist outpost before going on to break into a Separatist cyber center . Jesse , Rex and the Bad Batch then abandon the outpost . While Rex and Tech then extracted data of the algorithm being traced from Skako Minor but soon they were being overrun by Separatist reinforcements and they then left the cyber center and headed back to Republic lines . Jesse was later present at the planning base of the attack on the Separatists assembly complex where Windu suggested to move their forces to the assembly complex . He then participated in the combined attack on the complex to overtake it . Following the Republic ' s victory on Anaxes , he gave cheers for the " Bad Batch " . Equipment . Earlier in the war Jesse wore phase I clone trooper armor with blue markings . Later when the clone army moved to phase II clone trooper armor , Jesse ’ s had blue markings as well . Jesse ' s helmet had the cog - shaped symbol of the Galactic Republic on it to match his tattoo , which was the same symbol . Jesse used a DC - 15A blaster . Personality and Traits . Among his fellow clone troopers Jesse was well known to have a sense of humor . This was notability seen at the Battle of Umbara and Fives notably referenced it prior to their planned execution , believing that Jesse had simply created another joke .