Game Of Thrones: 15 Theories Better Than What We Got

Ever since Catelyn Stark's death during the Red Wedding in season three, fans of the books had patiently waited for her return as the zombie Lady Stoneheart.

In the source material, the body of Lady Stark is found several days after her death by Beric Dondarrion and Thoros of Myr. She is brought back as a shell of her former self, going by the name of Lady Stoneheart and leading the Brotherhood without Banners.

Though she hasn't featured in the books a huge amount, the fact that she exists at all is a game-changer, and she will certainly come into play during either the Winds of Winter, a Dream of Spring, or both.

This led to the theory that Michelle Fairley's character would return to lead Beric and Thoros' company, taking revenge on the Freys and anyone else who had a hand in the death of her eldest son, but no such luck. Instead, the Brotherhood found themselves disbanded somewhat, with Beric and Thoros ultimately heading North of the Wall with Jon Snow.

There was also an interesting theory that suggested Arya would take on the mantle after she travelled back to Westeros to take revenge on the Freys, but instead, the character was left out of the show entirely. Perhaps Gregor Clegane was enough part-resurrected zombie for the show, but there's no denying Lady Stoneheart would have been incredible to see on screen.