Kit made his debut as Snow in Season 1 of 'Game of Thrones' - which is an adaptation of the 'A Song of Ice and Fire' novels by George R. R. Martin - back in 2011 and has featured in every series of the show.
The English screen star admits he "grieved" for the programme when shooting ended for the final time and he likened the experience to when you finish reading a captivating book.
He said: "It's like when you finish a book, you're not happy it's over. You don't finish a good back and go, I'm happy I finished that! You have this grief it's over. No matter how it ended, or how it does end, there's always going to be a loss around it."
Kit also reassured 'GoT' fans that he is personally "very satisfied" with the show's ending and he is confident it will one of the biggest television events of all time.
When asked whether he was "happy" with how the show ends, he said: "Maybe not happy, but very satisfied. I'm so excited for people to see it.
"I think it's going to be extraordinary. Hopefully it will change TV again like it did originally and break boundaries."