As all of the murder, war, manipulation, and machination crescendoed toward the end of the seven-season run of HBO's epic fantasy "Game of Thrones," those making a play to sit on the Iron Throne and rule over all of Westeros got a lot more aggressive and vicious in their quest. The second-to-last episode of Season 6, "Battle of the Bastards," depicted a bloody, pivotal battle for Winterfell, fought by the armies of would-be King in the North Jon Snow, and determined, fellow illegitimate heir Ramsay Bolton. Filming that elaborate, ambitious battle required 25 shooting days, 500 extras, 600 crew members, and 70 horses, according to Entertainment Weekly. This means that most everything that showed up on the screen was real — much to the terror of the actor who portrayed Jon Snow in one of his most trying moments, Kit Harington.

A massive horde of enemy combatants attack Jon, and that wasn't done with CGI — there really was a large group of men running straight at, into, and on top of the actor. He's buried under bodies at one point, all of which was a bit too much for Harington. "I've got a few fears, spiders being one of them, but the worst is my claustrophobia — I'm mortally afraid of crowds. I panic," he told the Belfast Telegraph. "It was one of the most terrifying things and most uncomfortable."