Han Solo was a human male smuggler who became a leader in the Alliance to Restore the Republic and an instrumental figure in the defeat of the Galactic Empire during the Galactic Civil War. He hailed from Corellia and became the best smuggler in the employ of Jabba the Hutt, even completing the Kessel Run in less than twelve parsecs with his prized ship, the Millennium Falcon. He was best friends with the Wookiee Chewbacca, his trusted co-pilot who swore a life debt to the Corellian smuggler. Solo ran afoul of Jabba after ditching a shipment of spice to avoid trouble with the Empire, owing the Hutt a great deal of money as a result. His fortune seemed to have change when he agreed to charter Luke Skywalker, Obi-Wan Kenobi, and the droids R2-D2 and C-3PO to Alderaan, but he became caught up in the rebellion against the Empire and, after helping Princess Leia Organa escape from the Death Star, briefly fought in the Battle of Yavin, which allowed Skywalker to destroy the superweapon. Solo fought with the Rebellion for a number of years afterward, taking part in numerous operations and battles against the Empire.

After the Battle of Hoth, Solo sought safe refuge with Organa—with whom he had fallen in love—Chewbacca, and Threepio on Cloud City, which was operated by his old friend Lando Calrissian. There, they were captured by the Sith Lord Darth Vader as part of a trap to bait Skywalker to the city. Solo was frozen in carbonite and taken to Jabba's Palace on Tatooine by the bounty hunter Boba Fett, where he remained encased in carbonite for months until he was rescued by his friends. After returning to the Alliance Fleet, Solo was promoted to the rank of general and was given command of the Pathfinders, a special forces squad, for the Battle of Endor. Solo led the Pathfinders to Endor, where he, Organa, Chewbacca, and the special forces team, with the help of the native Ewoks, destroyed the shield generator protecting the second Death Star that was being constructed in orbit. Their actions allowed the Alliance Fleet to destroy the superweapon.

Han Solo - wookipedia[starwars.wikia.com]
Luke Skywalker's group
Darth Vader's group