Fans of the popular HBO series “Game of Thrones” know that only one thing on the show is certain — death. In previous seasons, not even the most integral characters have been safe from the writers’ wrath but it seems some of the core cast has come to feel untouchable.

Jon Snow (Kit Harington) was killed off on “Game of Thrones,” only to be brought back to life in Season 6, episode 2 which has created something of a safety net for the British actor. During an interview with The Wrap, Harington opened up about the remaining two seasons of the HBO original series. He said that his unexpected return left him certain that he’d survive Season 6 — even after learning Jon had been tasked with taking on Ramsay Bolton (Iwan Rheon) and his army.  In fact, Harington told the publication he was almost certain John would live to see the show’s end in Season 8, no matter what the White Walkers and/or “Game of Thrones” writers have in store. As Harington pointed out during the interview, Jon has a lot to learn before his time on “Game of Thrones” comes to an end and he remains hopeful that that information — especially as it relates to the R+L=J theory and Jon’s lineage — will eventually trickle down to him.

“Here’s the thing: I feel like one of the safest people on ‘Thrones’ now,” he said. “Maybe I shouldn’t say that. He [Jon Snow] could die next season, but I felt very safe this season. Because if I come back to life in episode two, it would be awful storytelling if you kill me in episode four. So I felt a bit cocky this season.”

While Harington is fairly certain that Jon will see “Game of Thrones” through to the end, co-star Sophie Turner remains much less so. During an interview with Variety at the Power of young Hollywood event, she revealed that she and her cast mates new the show wouldn’t last forever. She did not, however, know what the ending would mean for Sansa Stark (Turner) or any of the other characters on the show. Turner said that Season 6’s ending left things open ended for her character to chose her own path. She told the publication that the eldest living Stark girl can either choose the righteous path and team up with Jon or join forces with Littlefinger (Aidan Gillen) “and become a villain and sadistic.” Turner said that she was unsure whether Sansa would live to see the end of “Game of Thrones,” but shared some “spoilers” about how it would happen if and when it does.

“A long, slow episode-lasting death, where it’s just one long scene of my death and no one else,” she joked. “And it’s going to be the last episode of the last season.”

In addition to theorizing about which of the remaining characters will be the next killed off of “Game of Thrones,” fans have begun speculating about how the show will end. When last we visited the seven kingdoms, Cersei (Lena Headey) was seated comfortably atop the Iron Throne after taking out her opposition — the high septon, his posse and essentially everyone in the surrounding area — with wildfire. Meanwhile, Daenerys (Emilia Clarke) was making her way to Westeros with the help of Tyrion Lannister (Peter Dinklage), Theon Greyjoy (Alfie Allen) and his sister Yara Greyjoy (Gemma Whelan). Elsewhere, Arya Stark (Maisie Williams) is making headway on her kill list. Fans speculate that, before long, Cersei will face-off with Daenerys and lose her seat on the Iron Throne. It has also been said that Arya will likely complete her list and will soon be reunited with her siblings John and Sansa. Following confirmation of the R+L=J theory, many are hopeful that John and Daenerys will somehow join forces — though it is uncertain whether they will ever get the chance to meet.

Season 7 of “Game of Thrones” is slated to air in 2017. It will be just seven episodes long. Season 8, which will be the final season of the show, will follow and could potentially lead into a spin off.

“Game of Thrones” Sophie Turner and Kit Harington, who play Sansa Stark and Jon Snow on the HBO series “Game of Thrones,” have differing theories about their characters fates in Season 7 and 8. Photo: HBO