'Game of Thrones' Season 7 spoilers: Lyanna Mormont returns, kills major characters?

Lyanna Mormont made a huge impact after making her debut on the last season of "Game of Thrones." It has now been confirmed that the fiery young Lady of Bear Island will feature on the HBO series' upcoming seventh season.

Bella Ramsey, who plays the fearsome young girl, on the fantasy drama, had no more than a few lines on the show. However, she quickly became a favorite among "GoT" fans with her no-nonsense attitude.

As the series deviates from the books, the showrunners seem to have taken into account the positive response that Mormont's character received from fans. After all, she did go out of her way to help Jon Snow and Sansa Stark in their battle against the notorious Ramsay Bolton.

Fans will no doubt welcome Ramsey's return next season. There was a lot of speculation surrounding her role on the upcoming season, especially after Kristofer Hivju, who plays Tormund on the show, shared a photo of himself and Ramsey on Instagram.

 LOOK OUT FOR THIS ONE! Bella Ramsey portrays Lyanna Mormont with such a strength, authority and coolness! She also stars in a upcomming BBC/ Netflix show called The Worst Witch! She's super cool and a highly professional actor in the age of 11! Can't tell you if our characters meet or not this season - but I can tell you this: you have SO much to look forward to in season 7! Hallelujaaaaa!

A photo posted by Kristofer Hivju (@khivju) on Sep 26, 2016 at 12:42pm PDT

It remains to be known whether the two characters will share screen space in the upcoming season, but they were last seen after Snow's victory in the "Battle of the Bastards" episode. Mormont was also the first to proclaim Ned Stark's bastard son as King of the North and she is bound to play an important role as the Northeners take on Cersei Lannister.

However, it is now official that Lady Mormont be back next season after Ramsey was pictured leaving her trailer in full costume on the "Game of Thrones" set in Ireland. The child actress was seen filming on the same day as Kit Harington, Gwendoline Christie, and Liam Cunningham, according to the fansite Watchers on the Wall.

The fansite took to Twitter to share the news. It remains to be seen whether or not Ramsey's character will be involved in surprise killings of beloved character, which "Game of Thrones" is known for.

#Irishthrones #watchersonthewall #Gameofthrones Another appearance in Corbet last week, Northern powers are meeting!! pic.twitter.com/b8UrXv7LRb — pap4u (@PAP4U) October 10, 2016

"Game of Thrones" is set to return in the summer of 2017 and its final season is slated to air a year later in 2018. The show's seventh season will also comprise of only seven episodes as opposed to its normal 10 episodes, according to Quartz.

Watch Ramsey's debut scene from last season below: