Star Wars: The Force Awakens delivered a major blow to fans when Kylo Ren killed his father Han Solo (Harrison Ford). While everyone thought Ren took the step to prove that unlike his grandfather, Anakin Skywalker aka Darth Vader, he was loyal to the dark side, but the real reason behind his action lies deep in his past.

Episode VII did not go deep into Adam Driver's evil character but come December 14, the scenario is set to change and fans may finally come to know why the former Ben Solo killed his father with the release of Star Wars: The Last Jedi.

In an interview with Entertainment Weekly, Driver teased the eighth episode will throw more light on his character. According to the actor, his character underwent emotional insecurities that constantly drew him towards the dark side.

"I think the idea of someone whose parents are very much devoted to the cause, that's something a lot of people could relate to, whether it be religion or politics or a business," Driver told the website.

It was this constant longing of attention from his famous parents, Princess Leia and Han, who have been the driving force behind the Resistance army in the galaxy far far away, that made him feel left out.

However, Ben never really identified himself with cause leading to which he developed complexes, something that Supreme Leader Snoke was trying to use for his future benefit. Though never featured in The Force Awaken, it is a known fact that Ben was lured towards the dark side by Snoke while he was training as a Jedi under uncle Luke Skywalker.

"Not identifying with [that cause] yourself, I think can give someone a complex. Looking around and not seeing yourself and not identifying with what's around you, I think, affects how we behave," the actor added.

The Last Jedi is said to focus on Kylo's future dilemma but Driver warns that he is someone "to be feared."

"He has been aware of this ability in himself from such a young age, and I don't think there's a lot of people around him who are on the same level. I think that there is something familiar there, as well as something to be feared, or something ... that he can't quite place," he says.

But the latest Star Wars trilogy is not just about Kylo's journey but also about his return from exile, Rey's struggle with her past and the enormous Force she inherited.

Speaking with EW, writer-director Rian Johnson confirmed the same and said: "I don't think it's very interesting if the whole story is just 'Will Kylo get his comeuppance?' He's a more complicated character than that and I think he deserves a more complicated story than that. I don't see the point of trying to get behind his mask and learn more about him if all we're going to learn is 'Yeah, he's just an evil bad guy that needs to be killed.'"

Star Wars: The Last Jedi opens in UK theatres on 14 December. It will be released in the US on the next day.