However, because Anakin Skywalker, Ahsoka Tano, and R2-D2 (Artoo) were also principal characters, Star Wars creator George Lucas felt Alpha's name created too much alliteration between the main cast, and a new character, Captain Rex, was created instead. The name "Rex" was chosen by Lucas.
Captain is a specific rank, and commander is a generic title given to people in command regardless of rank. So in the 501st the command structure was General Skywalker, then Commander Tano, and finally Captain Rex.
Ahsoka's older because technically she's been around longer, but Rex is more aged as he's a clone. It's like how many animals age faster than humans; a 12 year old dog is elderly, but a 20 year old human is older yet still young.
Ahsoka outranked him because she was a Jedi, however Rex said, "In my book, experience outranks everything". Ahsoka then replied, "Well, if experience outranks everything, I guess I'd better start getting some!" The two became friends and Ahsoka got more experience, eventually outranking the captain!
In order to grow fully matured clones in half of the time it takes ordinary Humans, the Kaminoans modified the clones by implementing age acceleration into their development, thus allowing the clones to reach adulthood in ten years instead of two decades.
Why Captain REX Is Way More IMPORTANT Than You Remember! | Ahsoka Series Explained
Did Cody outrank Rex?
If we're comparing Captain Rex and Commander Cody, the first thing that comes up is rank—Cody outranks Rex. But honestly, I don't think rank tells the whole story. 👇💬 Why Captain Rex Is Better Than Commander Cody!
ARC Trooper Fives. Also known as CT-27-5555, Fives trained with Domino Squad on Kamino before being shipped out to the Rishi Moon listening outpost. He survived the Separatist attack on the station there, and was transferred to the 501st Legion alongside his squadmate and fellow survivor, Echo.
But when Order 66 was executed, it was Ahsoka who helped to free Rex from the programming of his inhibitor chip. At the dawn of the Empire, Rex has escaped with his life but is considered killed-in-action in the eyes of the new regime.
Older Expanded Universe material identified him as a veteran Rebel commando, but he was never given a deep backstory or major significance. While Lucasfilm has been known to overwrite Legends continuity, there has been no official attempt to retcon Nik Sant's EU identity and replace it with Captain Rex.
Rex, receiving the command from Sidious, realized at that moment that Fives had been right about everything and resisted his chip long enough to tell Tano to "find" the late ARC trooper before succumbing to the order and attacking her.
In Ahsoka, Rex made his live-action debut in the episode "Part Five: Shadow Warrior", voiced by Temuera Morrison in sequences set during the Clone Wars.
Despite Cody's friendship with Obi-Wan, he didn't hesitate when he received Order 66 from Supreme Chancellor Palpatine at the end of the Clone Wars. Obeying the Republic's commander-in-chief, Cody gave the order to fire on his Jedi General, then sent troops to see if he'd been killed.
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.
Aiwha. These massive cetaceans were native to the oceans of Kamino, swimming beneath the waves and sometimes leaping out of the water to soar through the skies. During the Battle of Kamino, Obi-Wan hitched a ride on an aiwha while investigating the planet's Separatist attackers.
Typically Cloning and Jedi don't work, but in the wider Star Wars Legend, there have been several instances of successful Jedi clones, but the problem with most of these clones is they never underwent any Jedi training, their innate usage of the force stems from the genetic template and its memories, just because a ...
Rex and his squad tried to shoot, but all were killed except Rex and Denal. As Rex was about to be killed, he was saved by Ahsoka, who ordered Rex and Denal to complete their mission without her. Rex and Denal rigged the reactors and rendezvoused with Skywalker and the Twilight in the landing bay.
He took a detachment to wipe out the Jedi temple on Coruscant. The 501st later became his personal legion of Stormtroopers. Commander Appo took charge after Rex.
Clones like Rex, Kix, Gregor, and Arc Troopers removed inhibitor chips and preserved their free will post-Order 66. The Bad Batch, Alpha-Class ARCs, and Cut Lawquane defied Order 66 due to immunity, free-thinking, or lack of contact.