<P> In the HBO television adaptation , Clegane was originally portrayed by Australian actor Conan Stevens in season one , and by Welsh actor Ian Whyte in season two ; Icelandic actor and strongman Hafþór Júlíus Björnsson took over the role from season four onwards . </P>
<P> In the HBO television adaptation , Clegane was originally portrayed by Australian actor Conan Stevens in season one , and by Welsh actor Ian Whyte in season two ; Icelandic actor and strongman Hafþór Júlíus Björnsson took over the role from season four onwards . </P>
who plays sir gregor on game of thrones
who plays sir gregor on game of thrones
Conan Stevens Ian Whyte Hafþór Júlíus Björnsson
Conan Stevens Ian Whyte Hafþór Júlíus Björnsson