A legendary Jedi Master, Obi-Wan Kenobi was a noble man and gifted in the ways of the Force. He trained Anakin Skywalker, served as a general in the Republic Army during the Clone Wars, and guided Luke Skywalker as a mentor.
Pre Vizsla publicly served Duchess Satine as the governor of Mandalore's moon Concordia, but was really the leader of the Death Watch, a secret society of Mandalorian commandos who sought to overthrow Satine's government and reclaim the Mandalorians' honor as warriors. Vizsla and Count Dooku plotted to assassinate Satine, which would lead to a Republic occupation of Mandalore. Vizsla's Death Watch would then liberate the planet, joining the Separatist cause. Things did not go according to plan, and Vizsla and Dooku bitterly parted ways. Death Watch became a group of nomadic warriors, with the formerly manicured and orderly Vizsla becoming unkempt and battle-worn as their leader.
The warrior clans of Mandalore were believed to have been wiped out ages ago, their tattered remnants exiled to the Concordia moon. But as the Clone Wars swept the galaxy, the treacherous governor Pre Vizsla resurrected the Mandalorians, and with them, their legendary combat armor that was feared across the galaxy. Backed by Count Dooku and the Separatists, Vizsla began building an army to retake Mandalore from the control of pacifists who were trying to bury violent Mandalore's past. As the coup became inopportune, Dooku abandoned the Death Watch, leading once again to their exile. The Death Watch became a murderous band of nomadic outlaws, battle-worn rogues that wandered the Clone Wars.
A Senator from Duchess Satine's home planet of Kalevala, Tal Merrik is not the man he first appears to be. Conniving and greedy, Senator Merrik will happily betray his closest "friend" if it helps him achieve his shady political goals. Merrik is secretly sympathetic to the Death Watch, and betrays Duchess Satine when she is most vulnerable -- en route from Mandalore to Coruscant aboard her starship Coronet. The slippery Merrik tries to outwit the Duchess and her protector, Obi-Wan Kenobi, but ends up running afoul of Anakin Skywalker's lightsaber.
Padmé Amidala was a courageous, hopeful leader, serving as Queen and then Senator of Naboo -- and was also handy with a blaster. Despite her ideals and all she did for the cause of peace, her secret, forbidden marriage to Jedi Anakin Skywalker would prove to have dire consequences for the galaxy.