Kylo Ren
Kylo Ren is the pseudonym of Ben Solo, the son of original Star Wars trilogy characters Han Solo, who he later killed, and Leia Organa. Though trained by his uncle Luke Skywalker as a Jedi, he has been drawn to the dark side of the Force, and wants to be as powerful as his grandfather, Darth Vader who he praised and thought was the king of evil, not the one who killed the emperor. Throughout all of The Force Awakens and the first two acts of The Last Jedi, Ren wants to be fully committed to the dark side, but there are times where the light side tries to pull him back in. This can be seen because when he kills his father Han, he hesitates before he does it. Even when he has a chance to kill his mother Leia, he chooses not to after giving it thought. This makes him a complex character.