Sadie Sink and Dacre Montgomery are joining the casts of "Stranger Things" Season 2 in 2017. Netflix has disclosed the two young actors are set for the brand new roles.

In a report from The Telegraph, Sink will play the role of Max, a tough and confident girl whose appearance, behavior and pursuits seem more typical of boys than of girls in this era. She has a complicated history and is generally suspicious of those around her.

Montgomery will play the role of Billy, Max's hyper-confident, and edgy older step-brother. He steals girlfriends away from their boyfriends, is great at drinking games, and drives a black Camaro. But lurking under his apparent charisma, is a violent and unpredictable nature.

Meanwhile, it is not yet confirmed if there's any Millie Bobby Brown (Eleven) involvement in season 2.

"I'm not sure if I'm going to be in it but it's fantastic, has great writers and directors... it will be good," she said in an interview.

According to International Business Times, after the announcement of the two additions to "Stranger Things," some fans took to twitter to slam "Stranger Things" for its two added white actors, which has been blasted for its lack of diversity.

However, the "Stranger Things" star, Finn Wolfhard reacted to the backlash and wrote on twitter, "Jeez everyone calm down!! None of you have seen anything from S2. We don't even know what's happening. I guarantee that you will all live it."

In an interview, the show's executive producer, Shawn Levy said, "There's definitely a handful of really compelling new characters this season, but absolutely servicing the core group first and foremost. Like the show itself, it's multigenerational new characters and really, really intriguing ones."

One more character is anticipated in season 2, but fans will still have to wait to find out who will be the new addition. "Stranger Things" Season 2 will be air in summer 2017.