But he's a weathered man of the Wall now, which is why we were surprised to learn that real-life Kit Harington totally "blew" his proposal to Rose Leslie.
He said of the proposal: "I was going to string up some lights in some trees and do all the romantic stuff but we were in the country and we were under this beautiful night sky and had a log fire burning and red wine and I blew my load early". Harington clarified quickly. "What I meant to say was, I popped my question a bit early. I popped my question a bit early", Kit said.
"I rang him up and I said, 'I'm getting married and it's your fault actually'..."
Her iconic statement "You know nothing Jon Snow" is certainly something that none of the #Kit Harington fans could have possibly missed.
He tells the show: "We did a little announcement in The Times..."
However, the wedding will not be Game Of Thrones themed in the slightly.
Happy couple: Rose Leslie and Kit Harrington on the red carpet together.
And Kit Harington and Rose Leslie looked like love's young dream as they were seen for the first time since they announced their exciting news in London on Friday, with Rose flashing her giant diamond sparkler.
Harington and Leslie, both 30, began dating on-and-off in 2012 after playing love interests on the HBO fantasy series.
Hang on. You did WHAT, John hun?
After making her Hollywood breakthrough in 1998's Armageddon, Liv Tyler has established an acting career that juggles art with blockbuster entertainment. "She has all sorts of ideas for the house". "Move anything you want around - change anything or chuck anything out'". "And she went, 'We're moving the kitchen downstairs'".