Game of Thrones season 7: A new key ally for Jon Snow?

While the shooting ended, could Game of Thrones’ season 7 offer a new key ally to Jon Snow?
A weighty character! Lately, we revealed that chaos and panic would be in the coming episodes of Game of Thrones season 7 , and today it is a thrilling piece of information about Megan Parkinson. Remember, the actress was spotted on on the set of Season 7 and there was plenty of speculation that she was embodying Jon Snow’s next companion. However, this will not be the case and the love life of our hero may not have a twist. The fan site Watchers on the Wall has come in possession of documents from the agency representing the actress and they reveal that she will play the role of Alys Karstark . From now on, The question is, who is this famous Alys Karstark? Alys is the daughter of Lord Rickard Karstark, a Stark family bannerman who fought alongside Ned Stark and swore his loyalty to Robb Stark when he was declared King of the North.
As a reminder, at the beginning of the series, Jaime Lannister killed two of the sons of Rickard, and therefore his brothers of Alys, in combat. Then, when Catelyn Stark released Jaime from his captivity, Rickard murdered his cousin in retaliation. An event that annoyed Robb, so he said that Rickard was a traitor and beheaded him for not following the orders. In the wake of all this, the only remaining brother of Alys, Harald, swore his allegiance to Ramsay Bolton and since then we are not certain that he died at the Battle of the Bastards. In any case, Alys has never appeared in Game of Thrones, but it remains important because of her family lineage and because she can claim the lands belonging to her family in the North .
In books, she becomes a key element in the political maneuvers of Jon Snow on the wall . We know that Megan Parkinson was involved in a major-staged scene with cast members including Kit Harington and Gwendoline Christie (Brienne). For the moment, it is only referenced for one episode, but it is still possible that his destiny follows that of the books of George RR Martin and that it becomes a major ally for Jon Snow. Lately, we wondered if the release date of Season 7 of Game of Thrones had leaked! What do you think of the arrival of this character?