Darth Karidius

Darth Karidius, born Luke Skywalker, was a 18 year old Human Male born on Polis Masa to Padme Amidala during the end of the Clone Wars, and beginning of the Rise of the Empire era. His twin sister, Leia, was separated from him for safety reasons. Luke was taken to Tatooine, to be raised by Owen Lars and Beru Whitesun Lars, his uncle and aunt.

Raised on Tatooine
From early childhood, Luke was kept away from the secret that his father, former Jedi Knight and now-Dark Lord of the Sith, Anakin Skywalker [now named Darth Vader], was the leader of the Galactic Empire. However, while he was on Tatooine, his father was brutally and mercilessly killed aboard the first Death Star by his own apprentice, Galen Marek, who would later become Luke's master after the Battle of Hoth.

Joining The Rebels [Escaping Tatooine]
About 2 years after his father's death at the hands of Starkiller, who was now known as Lord Starkiller, Luke joined Obi-Wan Kenobi to fly off-planet to get to Alderaan in order to hand his droid, R2-D2 over to Leia Organa [who is actually Luke's sister]'s father. They hired and paid smuggler Han Solo and his first mate, Chewbacca to fly their ship, the Millennium Falcon, to Alderaan.