During Game of Thrones Season 4, Episode 7, “Mockingbird,” we got our first look at the giant Thor Bjornsson filling the role of Gregor Clegane, better known as The Mountain. Thor looks to be about as big as an actual mountain standing next to Cersei, but how tall is he in real life?

Thor could definitely be mistaken for a mountain in everyday life. He measures 6’9” tall and weighs 425 lbs, but does this make him the tallest cast member on Game of Thrones? Nope, but we can sum up who that would be with just one word: Hodor. Kristian Nairn, who portrays Hodor, is listed at 6’10½”, making him a tad more mountainesque than The Mountain.

Thor is also the third actor to fill the role of The Mountain, so how does he measure up against the previous two?

Conan Stevens, who played Gregor in season 1 (and how cool is it that guys named “Conan” and “Thor” have played this role?), is 7’1¼”, making him considerably taller than Thor. Ian Whyte, who had the role in Season 2, is a shade shorter than Conan at 7’1”, still bigger than Thor. Even though Thor is the shortest of the trio by a few inches, he outweighs them by a considerable margin, with Conan being around 320 lbs. and the slender Whyte most likely weighing even less. So have no fear, Thor should look plenty intimidating when he faces off against Oberyn Martell in Season 4, Episode 8, “The Mountain and the Viper.”

Catch the next episode of Game of Thrones Season 4 on June 1, 2014 at 9 p.m. ET on HBO.