Parts of this are cribbed from my RP (and PVE) experiences in SWG. Here we go!
Thrax: Sendric Rist was raised and trained as a Jedi, but defected to the Separatists as soon as the Clone Wars began due to his dissatisfaction with Jedi life. He embraced the dark side fully and became a Dark Acolyte and participated in various missions until 19 ABY, when the CIS fell apart, and he was forced to go into hiding. He lived on the fringes of space for a time, trying to evade Imperial patrols, having no interest in serving the remnants of the Republic that he fought against.
During this time, Sendric meets a Force-sensitive Lethan twi'lek named Aseva Aieya and they start a romance, which produces a single child named Zakani Rist
(Hazek). He and his family drift through space on a YT-2400 known as "Crimson Blade", staying in the relative shadows of the galaxy as they travel from world to world seeking dark side secrets.
Feeling the destruction of his homeworld Alderaan, Sendric goes a little mad and resolves to find a little world to call his own. He travels to a relatively unknown mid-rim planet called Zythia to start pursuing his goal of a personal dictatorship in earnest.
Volgoss was a kindly Luka Sene priest. He lived to a ripe old age, and was killed in the aftermath of Operation: Knightfall.
Kurnak became a member of the Death Watch during the Clone Wars. He survived through to eventually hide out on Endor in the Death Watch Bunker, protecting it from scum looking to ruin their dealings with the Black Sun. He was killed by a group of spacers looking to craft Mandalorian armor for themselves.
Xantrell became a member of the Black Sun during the Clone Wars. He survived through to eventually hide out on Endor in the Death Watch Bunker, protecting it from scum looking to ruin their dealings with the Death Watch. He was killed by a group of spacers looking to craft Mandalorian armor for themselves.
Xaton also became a member of the Black Sun during the Clone Wars, just like his younger brother, but primarily he served as a pirate. Eventually, he became a Black Sun Ace and was awarded a Vigo Gunship and assaulted the space lanes around Ord Mantell until he was eventually killed, ironically enough, by the same group of spacers that killed his brother. They looted his
awesome looking helmet.Akunadan inherited his father's legacy on Rattatak and became the leader of one of the many tribes seeking dominance over the gladiatorial world. His brutality was unparalleled as he waged total war against the entire planet, fully exploiting his Force-sensitivity to bolster his forces and crush his enemies. Eventually, he was killed by an Emperor's Hand when he refused to capitulate to the demands of the Empire. His heirs battled ceaselessly over his powerbase, continuing the cycle of violence on Rattatak for decades to come.
Seylon became a Jedi, and died during Operation: Knightfall, full of doubt and regret over how he had spent his life.
Kamsen was eventually promoted to the Moff's Council, and was charged with overseeing the Imperial garrisons on the moons of Corellia. He was killed after the battle of Endor by a Rebel SpecForce team and the Empire's hold over Talus and Tralus has never been nearly as strong since then.
Ja'zin (The Deprogrammer) became a Rebel SpecForce Major noted for his unorthodox tactics revolving around slicing and sabotage, and participated in many raids on high-value Imperial targets. His crowning achievement was assassinating Moff Kamsen on the moons of Corellia by remotely hacking his automated caf machine and rigging it to violently explode.
Thellas never left the Ascendancy, and served dutifully throughout his entire life.
Xaoren died on Haruun Kal during the Clone Wars. Meh.
Sar'shosen was one of the younglings murdered during Operation: Knightfall.
Zaborr became a heavy weapons stormtrooper and loved every minute of it.