While Kylo Ren may believe he's the heir to Darth Vader's legacy, he's only one of many in the Skywalker family to turn to the dark side of the Force.

The first son of Han Solo and Leia Organa in Legends, Jacen Solo was converted to the dark side and became Darth Caedus. After a brutal reign of terror, Caedus was killed by his twin sister ...