Starkiller (The Force Unleashed)

"'''As long as you exist, I will ALWAYS return..." - '''Lord Starkiller, after falling at the hands of his own Apprentice, Darth Karidius.

Lord Starkiller, born Galen Marek, was a 20 year old Human male, and Dark Lord of the Sith. He was born in 18 BBY to two Jedi on Kashyyyk. He is the apprentice to Darth Sidious, and master to Darth Karidius, formerly Luke Skywalker.

Birth on Kashyyyk
Galen Marek was a force sensitive born on Kashyyyk after the foundation of the Galactic Empire. His mother was killed by a pack of bandits when he was an infant.

Meeting Darth Vader
Sometime after his birth [around 15 BBY], Kashyyyk was invaded by the Galactic Empire, led by Darth Vader, who was after Galen's father. After a heated battle, Galen's father was killed after Vader force choked him, crushing his throat. Galen watched in horror as his father's limp body fell to the floor, and a squad of Stormtroopers came in and aimed at him. However, Vader killed all the troopers and instructed Galen to come with him, to which the young child accepted. This would begin his journey as a Sith Assassin, and eventually a Sith Lord.