Game Of Thrones: 10 Actors Whose "Acting" Is Distractingly Bad

6. Hafþór Júlíus "Thor" Björnsson - The Mountain

Hafþór Júlíus "Thor" Björnsson has one of those names you really don't want to try to pronounce - let's just call him The Mountain, okay? Believe it or not, The Mountain has been played by three different people across the span of the show, and was recast between seasons two and three, and then during season five again - with this guy. Björnsson, a professional strongman from Iceland, was presumably cast as said character because it's all about the physique where The Mountain is concerned, right? Despite that, his acting skills were noticeably lacking whenever he was forced to open his mouth. His line delivery - few and far between as it was - felt stilted and odd. It wasn't detrimental to the series on the whole, of course, but it was distracting that a character who was supposed to be super intimidating sounded more like a drunk, gargling man-baby.