Credit: Arturo Olmos

Arya Stark (Maisie Williams) has been a Game of Thrones fan favorite since the moment the rambunctious tomboy showed off her proficiency with weapons at Winterfell, and over the first three seasons she's continued to win hearts with her quips and sword skills. Now, you need to prepare to see the beloved character take a darker turn in Season 4 .

Wetpaint Entertainment caught up with Maisie Williams at the Christian Siriano Fall/Winter 2014 Collection fashion show at New York Fashion Week, and the young star dished about what we can expect from Arya when HBO's fantasy epic returns in April.

"We've seen this kind of fun loving Arya who says it as it is and makes jokes, but this year she's starting to change and we're starting to see different sides to her," Maisie explained. "I don't know how people are going to react. They might love it, they might hate it, but I think she's becoming a lot more powerful in this world where women are getting bashed aside."

So, when Maisie says "more powerful," what does she mean? While she wouldn't spill specifics, she did hint that playing Arya this season was "more of a challenge" than in the past, because while tapping into Arya's sarcastic side came naturally — "that's kind of my go-to thing when I get nervous anyway!" — this season she had to channel a "scarier" side of the character that's "very different."

Arya's not the only thing that's changed this season. "There's not a big finale," Maisie added. "There's things dripped throughout, so it's not just leading up to the ending. There's other little twists in between." But don't worry, she's confident fans will "really, really like it."

While dress-hating Arya would probably fall asleep at a fashion show, Maisie also gushed that she's been having a blast at her first fashion week. "It's been amazing!" she told us. "I enjoyed it so much. I love the music. Christian [Siriano] as a person is absolutely hilarious and I love, love his clothes so I'm just thrilled to be here."

Are you excited to see Arya become "scarier," or are you worried she'll lose her charm? Sound off in the comments below.

Reporting by Lindsay Dreyer.

Game of Thrones Season 4 premieres on Sunday, April 6 at 9 p.m. ET/PT on HBO.