Bail Organa (born 67 BBY) - The Senator representing Alderaan. Bail has shown a growing discontent with the militant, xenophobic ways of Antior's reign. He senses more acutely than any other Senator that all-out war with the League is nigh. It is at the beginning of Episode I that he sees the unequivocal death of liberty. Ever the philosopher, Bail can forsee the one possible outcome when two massive forces collide...
Zero (built 45 BBY) - The engineering droid aboard the Belisarion. Zero is a capable assistant, programmed to manage astrogation, damage control, and encrypting and decrypting sub-space signals. He sometimes displays a comical mis-understanding of basic biological principles, as well an aloofness towards the emotions of sentient beings. But Zero is always there for Jeni and Ben, through thick and thin...
Chancellor Antior (born 85 BBY) - The self-important and highly paranoid leader of the Republic, elected into office with the help of widespread pro-Human sentiment throughout the Core. He earnestly believes that he is doing the right thing by passing into law a new order requiring the internment of "suspicious non-Human individuals" throughout Republic space, including any non-Human Senators who speak out against him. But even his bloated ego cannot sustain the state for long. Indeed, Antior will prove to be as clumsy as he is foolish...
Commander Cev'ko (born 80 BBY) - Esteemed leader of the Republic's 22nd Naval Defense Task Force, veteran of numerous brushfire wars and attempted insurrections. Cev'ko believes in defending the rights of the Republic citizenry, regardless of individual creed or species, putting him ideologically at odds with the militant Humanocentrists who have recently taken power in the Republic's military. When the drums of war beat anew, Cev'ko hears his calling. Fight the foes of liberty, until you can't...
Five more descriptions to go. Then the story begins. I'm doing it this way because I had a hard time writing a concise story outline while also describing the characters' personalities. So instead I chose to do those two things separately.