Despite being it's final season of the show, it looks like as well as rounding off the on-going story arcs, Game of Thrones' final run will also introduce a number of important characters.
This was all but confirmed thanks to Game Of Thrones fan site Watchers On The Wall which has discovered the show's producers have put out a casting call for eight new characters, many of whom appear to have small but pivotal roles.
One of the characters is described as an 'authoritative, fit, cool and charismatic' mercenary, with fans speculating they will be part of the Golden Company that Euron Greyjoy headed off to find for Cercei.
Another is 'rough-and-ready' sailor with a 'strong presence', likely an Ironborn who will play a role as Theon tries to rescue his sister Yara.
There will also be the introduction of two news guards, as well as a northern farmer and a 'sassy and attractive' northern girl.
Fans have also been speculating about the return of one of the shows most popular (albeit non-human) characters, following an absence during the last season.
As GOT director Miguel Sapochnik has explained, Ghost didn't feature during the Battle of the Bastards episode in Season 6 because it was too pricey.
He told Vanity Fair: "[Ghost] was in there in spades originally, but it's also an incredibly time-consuming and expensive character to bring to life. Ultimately, we had to choose between Wun-Wun [the giant] and the direwolf, so the dog bit the dust."
Similarly, Entertainment Weekly reporter James Hibberd said it's difficult to make the wolves appear realistic on-screen cheaply.
"One reason we haven't seen the direwolves more often is that the producers set a high bar for visual realism on the series and ultra-large wolves are difficult to render convincingly," he said.
"A naturalistic furry animal takes more time and resources to create using computer effects than a fantastical scaly dragon."
But with the newest season set to receive an increased budget of $15 million (£11.15m) per episode - many fans believe that the extra cash will mean more airtime for Ghost.