In the world of professional athletics and pop-culture phenomena, few figures loom as large—literally and figuratively—as Hafþór Júlíus Björnsson. Known to millions across the globe as “Thor,” the Icelandic strongman captured international acclaim as the third most decorated strongman in history, winning the coveted World’s Strongest Man title in 2018.
Yet for TV fans, he will forever be Ser Gregor Clegane, the terrifying, brutal force better known as “The Mountain” on HBO’s Game of Thrones.
Standing at a staggering 6’9” and tipping the scales at well over 400 pounds, describing Björnsson’s physical size without sounding like you are exaggerating is almost impossible. His biceps measure a mind-boggling 17 inches, his chest spans 63 inches, and his waist comes in at 45 inches. Even his hands look as though they were hand-chiseled from glacial granite.
Yet for all his world-record lifts, brutal cinematic roles, and intimidating physical stature, the aspect of his life that continues to captivate the public imagination the most isn’t his gym records. It’s his deeply loving, delightfully mismatched, and strikingly genuine marriage to his 5’2” Canadian wife, Kelsey Henson.
Now, the couple is directly addressing the one cheekily persistent question that follows them across every corner of the internet.
From Accidental Actor to Hollywood Action Star
Björnsson’s rise to global stardom was anything but scripted. Back in 2014, while building his legacy on the strongman circuit, he received a phone call from casting directors working on Game of Thrones, which was filming scenes on location in Iceland.
“I thought it was some kind of joke. I had no acting experience,” he recalled, chuckling at the memory. “I was just a big dude competing in Strongman.”
The producers weren’t looking for a classically trained Shakespearean actor; they needed an imposing, unstoppable physical presence. Björnsson fit the bill instantly, stepping into the armor of Ser Gregor Clegane in Season 4 and staying with the iconic fantasy series through its conclusion.
The role launched him into an entirely new stratosphere of fame. Beyond Westeros, he went on to play ‘King Thor’ at the Philadelphia Renaissance Faire in 2015, leading a fictional Viking raiding party. By 2019, he was starring alongside boxing legend Mike Tyson in the desert action thriller Pharaoh’s War, playing a mercenary force opposite Tyson’s mysterious former soldier. He later joined the ensemble cast of Robert Eggers’ historical Viking epic The Northman, sharing the screen with cinematic heavyweights like Alexander Skarsgård, Nicole Kidman, Ethan Hawke, and Willem Dafoe.
High-Profile Controversies and Personal Turning Points
Behind the Hollywood success, however, Björnsson’s personal history has weathered intense public turbulence.
Over the years, the strongman faced serious accusations from former partners alleging domestic abuse. Most notably, his ex-girlfriend Thelma Björk Steimann—the mother of his eldest child—publicly claimed in the Icelandic press that she feared for her life during their relationship, leading her to press charges.
“I honestly thought he wouldn’t hit me when I was pregnant,” Steimann stated in an interview with Icelandic newspaper Fréttablaðið.
An official police investigation into the matter ultimately found no physical evidence to support her claims. Björnsson, who has consistently and adamantly denied ever committing acts of violence against women, subsequently filed a slander lawsuit against her.
The ensuing fallout strained his relationship with his family to the point where Björnsson was legally restricted from seeing his daughter for three years. In the years since, however, the domestic situation has stabilized; the former couple established an amicable arrangement, and Björnsson now regularly travels to Denmark to spend quality time with his daughter, Theresa Líf.
A Chance Meeting in Alberta and a 19-Inch Difference
The chapter of Björnsson’s life that would change everything unfolded in late 2017 during a trip to Alberta, Canada.
He was visiting the province for a dual promotional tour—headlining the Warwick Strongman Festival and promoting Icelandic Mountain Vodka. While out at a local venue, he met Kelsey Morgan Henson, a Canadian fitness model working as a waitress.
Recognizing the Game of Thrones star, Kelsey approached the giant to ask for a fan photo. The conversation flowed effortlessly, a spark ignited, and what began as a polite snapshot quickly blossomed into a fast-moving, whirlwind romance.
When the pair began appearing together in public, the internet couldn’t look away. The physical contrast between them was dramatic: Kelsey stands at 5 feet 2 inches, making her more than a foot and a half shorter than her towering partner.
Yet behind the initial viral curiosity was a deep, authentic emotional connection. By August 2018, less than a year after their first meeting, the couple officially tied the knot in a stunning ceremony in Iceland.
“It is with great pleasure that I now get to call Kelsey Morgan Henson my wife,” Björnsson wrote to his millions of followers alongside a tender wedding photo. “I get to hold this beautiful woman through thick and thin for the rest of our lives! I’m so excited for all of the future adventures we will tackle side by side.”
Two years later, on September 26, 2020, their bond grew even deeper with the birth of their son, Stormur Magni Hafþórsson.
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Navigating Unimaginable Loss
While the couple’s social media feeds frequently showcase fitness, travel, and playful family moments, their strength was tested to its absolute limit on November 10, 2023, when they shared news of a devastating tragedy.
In a heartbreaking joint Instagram post, Kelsey and Hafþór revealed that their infant daughter, Grace Morgan Hafþórsdóttir, had passed away at 21 1/2 weeks gestation after doctors detected that her heart had stopped beating.
They posted tender, heartbreaking photographs holding their tiny daughter, opening up to their global community about the profound grief of losing a child.
“Words cannot describe our pain of this loss or our happiness at being able to spend time with our daughter,” they wrote in the post. “She is absolutely beautiful, with blonde lashes and brows and a little smile for mom and dad. The love we feel for her is overwhelming… The grief we feel will be with us forever but so will the love.”
Opening up about such a personal tragedy earned the couple widespread praise for their vulnerability, bringing them even closer to fans who admired their resilience in the face of profound heartbreak.
“Ah, He Bends, I Tiptoe”: The Viral Question Finally Answered
Through all of life’s highs and lows, the couple’s playful, lighthearted chemistry remains the core foundation of their public appeal. Kelsey serves as an unshakeable rock for the family, balancing her own fitness business with managing the everyday chaos of living with one of the biggest men on the planet.
Still, no matter what workout routine or family milestone they post, fans inevitably circle back to the exact same logistical mystery:
How, exactly, does a 6’9″ giant kiss a 5’2″ woman on a daily basis?
During an interactive Instagram Q&A, one cheeky follower finally voiced the question that millions were dying to ask: “Do you jump into his arms every time and wrap your legs around his waist? Please, post a picture of this impressive action!”
Rather than ignoring the inquiry, Kelsey stepped up with a practical, hilarious response that summed up their everyday compromise perfectly:
“Ah, he bends, I tiptoe. Or just say screw it, pick me up!”
With the internet’s favorite logistical mystery finally solved, Thor and Kelsey continue to prove that while they might look like an unlikely match on paper, real love isn’t measured in feet and inches—it’s measured in laughter, mutual respect, and standing tall together through every storm.