Hafþór Júlíus Björnsson as Jonah King - Martial Law (2026) Fan Cast | myCast.io
Hafþór Júlíus Björnsson
Age: 37
male
Hafþór Júlíus Björnsson is an Icelandic professional strongman, actor, and former professional basketball player.
He plays Ser Gregor "The Mountain" Clegane in the HBO series Game of Thrones.
LAPD martial arts specialist Sean Thompson and his relentless new partner Brittany Blake track a calculating career criminal who operates a “cartel-for-hire” network—selling violence to the highest bidder—while secretly mastering a near-mythical combat technique that turns every confrontation into a lethal chess match.
