Clones were designed to fight and die for the Republic. They aged at twice the rate of normal humans and began fighting after about 10 years growth when they were physically 20 years old. They were expendable and not expected or intended to survive more than 40 years at best.
That would be Kix. Due to his being frozen in stasis by the Separatists, he survived for 50 years after the end of the Clone Wars before being awakened by a pirate gang several years before the events of the sequel trilogy. Kix, Able, or that one Delta squad guy that appeared in legacy of the Force.
Clone 99 was a clone of the bounty hunter Jango Fett, created on the planet Kamino to be a soldier of the Grand Army of the Republic. However, 99 was physically disabled due to genetic errors during the cloning process. As a result, he aged faster than his fellow clones.
This ensured the clones aged at twice the rate of a normal human, reaching adulthood in just 10 years. There's a downside to the clones' supercharged aging, though: it has no off switch.
Why Were Clones Made to Age SO FAST - Star Wars Explained
Who is the youngest bad batch?
Omega is About 12 During The Bad Batch Season 1
Omega is obviously a child in The Bad Batch season 1, but she is likely about 12 years old. It's possible that she could be as young as 10 or as old as 14, but based on other information provided in later seasons, 12 seems more likely.
Trivia. Rex is actually 31 years old, though his biological state is likely closer to at least sixty years, due to the accelerated aging that was genetically installed in all Clone Troopers.
CT-9999/9999 nicknamed "Nines" was a clone trooper in the 37th Assault Legion. He served under commander CC-5629 nicknamed "Hunter" in the battle of Texx.
Cut Lawquane was a clone trooper who fought for the Galactic Republic during the Clone Wars. Shortly after the First Battle of Geonosis, Lawquane's transport was attacked by Separatist gunships, leaving his fellow soldiers either dead or injured. Lawquane fled, deserting the army, and later married Suu Lawquane.
Though Star Wars has yet to explore it, the chance for the clones to live long and happy lives is not totally out of reach. Theoretically, reversing their accelerated aging is entirely possible. However—like removing the clones' inhibitor chips—the procedure is difficult to perform.
Grand Army of the Republic lived the longest? well, it's none other than CT6116 or Kix of the 501st Legion. kix served alongside Anakin Skywalker. and Captain Rex during the Clone Wars as a medic.
Order 65 stated that if a majority of the Senate or the Security Council declared that the Supreme Chancellor—at that time Palpatine—was unfit for duty, the Chancellor was to be arrested or, if necessary, killed.
Jango Fett, the clone template, is a human. Many people say he's Mandalorian, which was true in Legends, but he got demoted to being a simple Bounty Hunter by George Lucas during The Clone Wars series.
Clone Force 99, also known as "The Bad Batch", is a unique squad of clones with genetic mutations that were introduced in the series Star Wars: The Clone Wars.
CT-666, nicknamed "Barlex", was a clone of the Mandalorian bounty hunter Jango Fett who served as a Sergeant in the Grand Army of the Galactic Republic's 7th Sky Corps, 212th Attack battalion and 2nd Airborne Company during the Clone Wars.
CT-1111 was a clone trooper assigned to Theta Squad during the Clone Wars. He was given the nickname "Ones" due to the fact that his number was all ones. He was killed during a battle against the Separatists.
CT-1000, (later CC-1000) nicknamed "Conqueror", was a clone of the Mandalorian bounty hunter Jango Fett who served as a sergeant, later reached the rank of captain at the end of the Clone Wars. Following the rise of the Empire, he ascended to the rank of battalion commander in the Imperial army.
As night fell, Rex met with Skywalker, Windu, and Boll at Urus's palace to discuss the problem of the uncontrollable Zillo Beast with Palpatine. While the Dugs wanted to kill off the Zillo Beast, the Jedi wanted to preserve the creature, as it was one of the last of its near-extinct species.
