“Game of Thrones” tried their best to conceal the fact that Kit Harrington would be back in season 6, to very little success. Harrington took it to a new level and told all of his co-stars that he would be gone from the show too. Those with more experience could understand that Jon staying dead makes very little dramatic sense. But he was able to fool Sophie Turner, and she truly bought it hook, line, and sinker. Speaking with Fox 5 back in 2016, she revealed the lengths to which she wanted to show her appreciation for having worked with Harrington on the show:
“He told us all that, like, he was gone, he was dead, and then he … Like, I was the only one who believed him, and I wrote him a really long letter about how much I’d enjoyed working with him, and it was really heartfelt, and I was like, ‘It’s okay, I won’t see him again, it won’t be embarrassing.’ And then the next season he came back and he was like, ‘Surprise!’ And I was just like, ‘Dude, screw you. Like, I don’t do that for anyone, you know? I don’t give compliments out to anyone, Kit.’ So anyway, we all found out in the sixth season.”
While writing that letter was ultimately futile, I do think you should tell the people you enjoy working with that you enjoy working with them every once in a while. I bet when Kit Harrington read that letter he was very appreciative of the sentiment, even if its creation was due to a lie. I do appreciate that the first reunion Jon has in season 6 is with Sansa, and this makes that reunion all the sweeter.