Watch Kit Harington's discomfort at hilarious Jon Snow impressions on Jimmy Kimmel

The Game of Thrones star appeared to find the situation rather awkward

Jon Snow, played by Kit Harrington, on the other side of the Wall (Helen Sloan)

We all know winter is coming. But Kit Harington, who plays the beloved Jon Snow in HBO’s Game of Thrones series, might be worried the winter of his career is nearing as there are several decent contenders for his replacement on the show.

The 28-year-old actor, famed for his dulcet and straight-faced delivery of some of the silliest lines in the Seven Kingdoms (“Come stand by the fire. It's warmer,” Er, really Jon, you don’t say) appeared unable to keep his trademark dour exterior when faced with three credible impersonators.

But the true Lord Commander of the Night’s Watch should fear little from the invading impressionists who feast on his character – they know nothing of Jon Snow.