In anticipation of HBO's Game of Thrones: The Complete Fourth Season coming out on Blu-ray and DVD, IGN spoke with Sophie Turner, aka Sansa Stark, about the upcoming home video release and Sansa's journey through Season 4. Due out later this month, the Blu-ray set includes all 10 episodes of Season 4, as well as roundtable discussions, on-set interviews, audio commentaries, and brand new animated histories giving fans hours of extensive, never-before-seen material.

Sophie Turner as Sansa Stark in Game of Thrones.

Is Sansa's Dark Streak the One Thing That's Keeping Her Alive?

During our interview with Turner, we also touched on Sansa's dark side, her character's relationship with Littlefinger and how it evolved in Season 4, and what fans can expect to see in Season 5, premiering this April.Warning:from Game of Thrones: Season 4 follow...One thing that's interesting about House Stark is that their sense of morality is often what gets them killed -- as opposed to pretty much every other character on Game of Thrones. However, in recent seasons, both Sansa and Arya Stark have developed a bit of a dark streak, as they've begun to see the world as it really is. When asked if that dark streak is what's kept Sansa alive this long, Turner said, "I definitely think so. Everything that Sansa does is moral. She's never done anything evil in her life, or, if anything bad has come from the decisions she's made, she made it with good intentions."She continued, "I think, yes, the Starks were killed because they were very openly moral and noble. Whereas Sansa [is] not very open or loud about what she wants. I think that's what helps her survive, the fact that she can do it behind the scenes -- and still portray this face of innocence, which I don't think any of the other Starks have, except for maybe Arya."

Sophie Turner on How X-Men's Jean Grey is Like Sansa

Littlefinger and Sansa unite!

Turner also mentioned that it's been fun to tap into Sansa's darker side, especially after playing the wide-eyed ingenue for so many years. "It is definitely fun," she said. "It's so nice to shed the skin. As much as she was manipulating people behind her innocence, she was still very much a victim. Whereas now she's not a victim at all. She's somewhat dominant, and that's really exciting for me to play -- finally. [Laughs]"

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What to Expect in Season 5

Another major through line in Season 4 was Sansa partnering with Littlefinger in the Vale. Here we saw the unlikely pair team up to (inadvertently, on Sansa's part) take down Sansa's wicked aunt Lysa Arryn. "Sansa's relationship with Littlefinger is, from an outsider's perspective, a really messed up relationship between an older man and a young girl," Turner explained, "but it's really like a tag team. They're definitely a duo, a force to be reckoned with, together. He's very much the brains, and -- she's also very much the brains, but she can also pull off the innocent act, which he can't."Together, they can come up with some good plans. Also, the way that they can vouch for each other and manipulate each other -- I mean, he is a master manipulator, and she can kind of manipulate him through maybe her sexuality or the things that she does that he can't resist, because she reminds him of her mother. But they kind of join forces, and that's very exciting."Of course, with each passing season of Game of Thrones, the story deviates more and more from the books. But that's part of what makes the show exciting, according to Turner -- the true element of surprise. "My storyline in the books has kind of stopped," she said. "Until [George R. R. Martin] releases the next [book], we don't really know what Sansa's going to do. So it's exciting to see where the show is pushing characters like mine and others. Let me tell you, it's a really, really great season!"

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So what can fans expect from Season 5 as far as Sansa's story goes? "Season 5 Sansa definitely has a mentality about her," Turner said. "She goes through a lot of hardships this season, as per usual, but she really approaches them with a different mentality. I think that's what makes the season really quite special for her. But then she sees a few faces along the way and crosses a few story paths. I think it will be really interesting to see how those relationships flesh out. But yes, there's a lot more blood, a lot more death. It's Game of Thrones, so..."

Game of Thrones: The Complete Fourth Season on Blu-ray and DVD hits shelves on Tuesday, February 17.Max Nicholson is a writer for IGN, and he desperately seeks your approval. Show him some love by following @Max_Nicholson on Twitter, or MaxNicholson on IGN.