“The Unknown” Episode Guide | The Clone Wars - Season 6, Episode 1

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. Fives and Echo were promoted to ARC trooper status after the defense of Kamino from Separatist invaders. He and Echo were later assigned with the difficult mission of freeing Republic prisoners from the daunting Citadel prison installation on Lola Sayu. He and Echo were later part of a mission to free Republic prisoners from the Separatist prison called the Citadel. Echo fell in battle, leaving Fives as Domino Squad’s sole survivor. Fives accompanied the clone trooper Tup to Kamino for medical testing, where he discovered a terrifying secret about the clones’ origins and ultimate purpose.

A rookie clone trooper in the 501st Legion, Tup acclimated well within the ranks of seasoned veterans. Unlike some of the newer clones, like Dogma, who seemed wound a little too tight, Tup was far more willing to learn from his brothers' experiences. Tup could be distinguished by the teardrop shaped tattoo on his face, and the matching markings on his helmet. He served during the grueling campaign to retake the shadowy planet Umbara, under the command of the fierce General Pong Krell.

At the time of their introduction, the Republic clone troopers represented the future of galactic warfare. Far superior to battle droids, the clone troopers formed the backbone of the Republic's new military that waged war against the forces of the Confederacy of Independent Systems. So symbolic were they of the times, the galaxy-wide conflict that saw their debut took its name from their ranks: the Clone Wars.

Once purged from the otherwise complete Jedi Archives was all evidence of the mysterious world of Kamino. A lonely world beyond the Outer Rim and just south of the Rishi Maze, few could have predicted that Kamino would become a key contributor to a massive shift in political power in the final days of the Republic. Kamino is a planet of endless oceans and storms. Few features mark its surface, save for massive stilt-mounted cities wherein reside the planet's natural inhabitants, the Kaminoans. From Tipoca City, the planet's prime minister rules. Lama Su and Kamino’s chief medical scientist Nala Se closely monitor the operations of Kamino's most prized export -- clones -- even after the Clone Wars reaches a conclusion.

Discovered as a slave on Tatooine by Qui-Gon Jinn and Obi-Wan Kenobi, Anakin Skywalker had the potential to become one of the most powerful Jedi ever. Some even believed he was the prophesied Chosen One who would bring balance to the Force. Always pushing the limits of his Jedi training, seeking to excel and live up to his reputation, Skywalker's passion often brought him into conflict with his mentor, Jedi Master Obi-Wan Kenobi. A hero of the Clone Wars, Anakin was caring and compassionate, but suffered from a deep fear of loss that would prove to be his downfall.

A Separatist admiral known for his cunning and ruthlessness, Trench commands the Separatist blockade of Christophsis, where Senator Bail Organa and his relief effort are pinned down and in danger of capture. Although Anakin Skywalker outwits him and Trench's flagship is destroyed, the skilled tactician survives to fight another day thanks to an array of cybernetic implants.