Hafþór Júlíus Björnsson weighs 400 pounds. His personal records:

• Squat – 350 kg (794 lbs.) raw
• Bench press – 230 kg (507 lbs.) raw
• Strongman Deadlift – 420 kg (924 lbs.) raw with wrist straps
• Loglift – 192.5 kg (424 lbs.)

More about him: http://en.wikipedia.org/wiki/Haf%C3%BE%C3%B3r_J%C3%BAl%C3%ADus_Bj%C3%B6rnsson

So a 25 year old will play the older brother to a 44 year old, I guess they can work their TV magic to accomplish that!

He is the tallest strongman ever from Iceland, Janill.  ICELAND.

Yes, again, friggin Iceland is dealing it ;)  Are these people some king of superior race? or what!  lol

nICE.

The Mountain looks a lot older than 25.

Ages are strange in Westeros anyway.

Margaery is played by a 32 year old and Tommen, not even close.

Fun fact, out of all the actors that played the mountain, this guy is the shortest.

Reddit comments:

http://reddit.com/r/gameofthrones/comments/260lt8/s4e7_the_mountains_sword_is_as_long_as_cersie_is/

Compare with Mountain #1:

Reddit comments:

http://reddit.com/r/gameofthrones/comments/25yqwf/s4e7_my_impression_of_the_mountain_recast/

The Faces of The Mountain:

SEASON ONE Portrayed by Conan Stevens

SEASON TWO Portrayed by Ian Whyte

SEASON FOUR Portrayed by Hafþór Júlíus Björnsson

Source: http://winteriscoming.net/2014/05/15/player-of-thrones-clegane/

That's a lot of tattoos to cover up ;)

Holy smokes, yeah. I just noticed no tattoos in the pictures at the top and bottom of this page. Wow!!

You can really see his tattoos here...

...but not here:

Really good makeup -- no tattoos:

This article is really interesting about his strong man career:

http://ftw.usatoday.com/2014/05/game-of-thrones-mountain-hafpor-bjornsson-worlds-strongest-man

He once threw a washing machine 15 feet!

Oberyn and the Mountain off camera:

http://pandawhale.com/post/44874/oberyn-and-the-mountain-off-camera

Sizes of first and third Mountains plus the Hound: 6'9", 7'1", and 6'6"...

Reddit comments:

http://reddit.com/r/gameofthrones/comments/27cb2b/no_spoilers_two_mountain_actors_scaled_size/

The Mountain dead lifts 994 pounds:

http://pandawhale.com/post/45001/the-mountain-from-game-of-thrones-deadlifts-994-pounds

Here's a gif of that deadlift:

This is him 4 or 5 years ago -- he used to be a basketball player, not a weightlifter!

I cannot even IMAGINE the amount of protein that kid had to eat to become the Mountain. Maybe like... 10 whole cows!?!?

OMG, he was so skinny!

Janill, is there something that happens to Icelandic people that makes them become HUGE?

I think it's just him, not sure how big the general population is.  Tallest population I think is Dutch, at  6' 1" for males.

http://www.lewrockwell.com/2013/05/denis-foynes/the-10-countries-with-the-tallest-people/

Iceland was not measured.

Here is the question asked in a Wiki:

http://icelandreview.com/stuff/ask-ir/2011/02/08/what-average-height-icelander

180.6 centimeters (5' 9") Icelandic men

Dutch *are* the tallest.

I just love that Iceland is known as The Land of Ice and Fire.

Iceland... Is Westeros???

Thank you for those stats, Janill.

Skip to the bottom of this page for a cool video on Icelandic giants. 

The Mountain with two guys taller than 6'9":

The Mountain and the Hound:

This woman is 6 feet tall:

300 Reddit comments:

http://reddit.com/r/gameofthrones/comments/2gmtjm/no_spoilers_i_met_the_mountain_in_iceland/

According to his Reddit AMA, he listens to metal while training and his cardio regimen is "sex."

Hafþór Júlíus "Thor" Björnsson of Iceland Ask Me Anything:

http://reddit.com/r/IAmA/comments/20q6jb/strongest_man_in_the_world_i_am_haf

Super cool video!  Thanks!

Thor isn't an Icelandic name, right? It's Nordic.

He's 6'9, 419 pounds. Age 25:

http://reddit.com/r/pics/comments/1vzqg3/this_is_the_actor_hafthor_julius_bjornsson_who_is/

At Game of Thrones episode 4.07 we're in the year 300AC.

Oberyn born in 258AC - 42 years old

Tyrion born in 274AC - 26 years old

Ser Gregor: either born in 265AC or 266AC, wiki isn't certain so he's 34-35.

The Hound: 270AC - 271AC so he's 30

More about episode 4.07:

http://pandawhale.com/post/43841/game-of-thrones-season-4-episode-7-mockingbird-gifs-and-memes

This is a good documentary about The Giants of Iceland:

Thor Bjornsson (The Mountain) is in it.

Interesting film.

I thought so too! Iceland is even more fascinating than we realized.

He's now officially Europe's strongest man:

http://pandawhale.com/post/49141/the-mountain-is-now-europes-strongest-man-2014

The Mountain and The Viper happy ending:

http://pandawhale.com/post/44989/the-mountain-and-the-viper-happy-ending-with-8-ways-to-make-game-of-thrones-s4e8-ending-better-aka-oberyn-vs-mountain-the-denial-version

More Q&A with Thor Bjornsson (The Mountain):

http://pandawhale.com/post/46839/qampa-with-hafr-jlus-bjrnsson-aka-the-mountain-from-game-of-thrones

The Mountain is now officially Europe's strongest man.

http://pandawhale.com/post/49141/the-mountain-is-now-europes-strongest-man-2014