He called the final season storyline "poetic" and added, "I think what we used to call Episode 9 in Game of Thrones folklore - the episode when everything comes to a head and you get a lot of spectacular sequences - I think you're gonna get six "Episode 9s" this year".
"I'm really emotional about it", he said on "The One Show", which aired on BBC One in the United Kingdom on Friday night.
"It's been an institution longer than any other institution I've been in", he-of-the-perfectly-wavy-hair-even-in-blizzards continued. "School, drama school, anything", he said. "It's going to be a unusual year saying goodbye to everyone and having last scenes with this person and that person", he continued. "Not only you're so attached to it, loads of people around the world are attached to it". And he has been sworn to secrecy by the show's producers.
"[I was told], "Don't tell them you're filming". Don't take pictures in Belfast.
Red Star Belgrade 0-1 Arsenal: Match Report & Player Ratings
This win was their third in as many Europa League games and a welcome lift after a disappointing defeat by Watford at the weekend. Milan Rodic was shown what seemed like a harsh second yellow card after going up for a header with Francis Coquelin .
Stop the presses because Jon Snow has gone from knowing nothing to knowing "everything".
The duo got engaged in September and Harington recently made the official announcement of their engagement in The Times.
"I've got them all", he said at the time.
We're (basically) forever away from the finale of Game of Thrones, but honestly? [The cast] have all got to be there so the whole thing has got to shut down'.
Yet while the Game of Thrones cast may all be in attendance, Harington has ruled out a themed wedding representing the series.