Gregor Clegane

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Gregor Clegane
A Song of Ice and Fire character
Game of Thrones
Hafþór Júlíus Björnsson as Gregor Clegane in the promotional image for the fourth season of Game of Thrones
First appearance
Last appearance
Created byGeorge R. R. Martin
Adapted byD.B. Weiss & David Benioff
(Game of Thrones)
Portrayed by
In-universe information
  • The Mountain That Rides
  • The Mountain
  • Tywin Lannister's Mad Dog
  • Robert Strong
  • Ser
  • Castellan of Harrenhal (formerly)
  • Knight of Clegane's Keep (formerly)
FamilyHouse Clegane
RelativesSandor Clegane (brother)

Gregor Clegane, nicknamed "The Mountain That Rides" or simply "The Mountain", is a fictional character in the A Song of Ice and Fire series of fantasy novels by American author George R. R. Martin, and its television adaptation Game of Thrones. In the books, the character is initially introduced in 1996's A Game of Thrones. He subsequently appeared in A Clash of Kings (1998), A Storm of Swords (2000) and in A Dance with Dragons (2011).

A notorious knight and retainer to House Lannister, he is well known for his enormous size, prowess in battle, extremely cruel nature, and uncontrollable temper.[1] He is the older brother of Sandor "The Hound" Clegane who has hated him ever since Gregor gruesomely scarred Sandor by shoving his face into a brazier when they were children. After being mortally wounded in a duel with Oberyn Martell, he is resuscitated by Qyburn via sinister means and becomes member of the Kingsguard and the personal bodyguard of Cersei Lannister.

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 world champion strongman Hafþór Júlíus Björnsson took over the role in season four and continued in the role until the final season.[2]

Character description[edit]

Ser Gregor Clegane is the head of House Clegane, a landed knight vassal to House Lannister,[3] and is the older brother of Sandor Clegane. His enormous size and strength make him a fearsome warrior (in the novels he is nearly 8 feet (2.4 m)) tall, and weighs over 420 pounds (190 kg)), and he has earned a reputation for violence and brutality. When they were children, Gregor shoved Sandor's face into a brazier for using his toy, gruesomely scarring him. Over the course of his service to Tywin Lannister, he has committed numerous war crimes, most infamously the rape and murder of the Targaryen royal family, but has repeatedly avoided punishment due to House Lannister's power and influence over the Iron Throne. Clegane was one of the first Lannister soldiers to enter King's Landing during its sack at the end of Robert Baratheon's rebellion. He raped and murdered Princess Elia, after murdering her son Aegon by shattering the child's head against a wall, a grudge House Martell still bears 14 years later at the onset of A Game of Thrones.

Gregor Clegane is not a point of view character in the novels, so his actions are witnessed and interpreted through the eyes of other people, such as Arya Stark and Cersei Lannister. Gregor is mostly a background character in the novels.[4]


A coat of arms showing three black dogs on a field of yellow.
Coat of arms of House Clegane

A Song of Ice and Fire[edit]

In A Game of Thrones, Tywin Lannister sends him to raid the Riverlands in retaliation for Catelyn Stark's abduction of Tyrion. Beric Dondarrion is sent to arrest Gregor, but Gregor ambushes and kills him.[5] He and his men continue raiding the Riverlands throughout A Clash of Kings. When Tyrion Lannister demands a trial by combat in A Storm of Swords, the accuser Cersei Lannister chooses Gregor as her champion. Elia's brother Oberyn Martell volunteers as Tyrion's champion to expose Gregor as a murderer. Oberyn wounds Gregor with a poisoned spear, but the Mountain is ultimately victorious, admitting to murdering Elia and Aegon before crushing Oberyn's skull. The dying Gregor is given to Qyburn for experimentation. Later Gregor's skull is sent to Doran Martell and the Sand Snakes who question if it is really Gregor.

Robert Strong[edit]

Following Cersei's walk of atonement, Qyburn presents Ser Robert Strong as Kingsguard's newest member and Cersei's champion for her upcoming trial by combat. Strong is of similar enormous stature as Gregor, and his body is completely covered in armor. Several characters have made comments about his unnatural behaviour and have theorized about who he could be, however he is currently not confirmed to be Ser Gregor.

Game of Thrones (TV adaptation)[edit]

Season 1[edit]

Tywin Lannister sends Ser Gregor to raid the Riverlands. Beric Dondarrion is sent to arrest Gregor. When war breaks out, Gregor is given command of Tywin's vanguard and left flank and leads his men through intimidation.

Season 2[edit]

Ser Gregor is left to command Harrenhal in Tywin's absence and to find and destroy "The Brotherhood Without Banners", invoking the escape of Arya, Gendry and Hot Pie from Harrenhal. He later abandons Harrenhal after slaughtering the prisoners and is defeated by Edmure Tully at the Stone Mill, but manages to escape back to the Westerlands. Robb chides his uncle, having planned to draw the Mountain into a trap of his own making to be captured or killed.

Season 4[edit]

Ser Gregor is chosen as Cersei's champion for Tyrion's trial by combat, and fights Oberyn Martell, Tyrion's champion who wants to kill Gregor as revenge for the murder of his sister, Elia Martell. Oberyn inflicts several serious injuries on Clegane with his poisoned spear, but Gregor eventually kills Oberyn by crushing his skull, while admitting that he did rape Elia, killed her children and enjoyed it, before collapsing from his own injuries. It is later revealed that The Mountain has been poisoned with manticore venom, a poison with which Oberyn had laced his weapon, and that he is slowly dying. Cersei enlists ex-maester Qyburn to save him, though Qyburn claims that the procedure will "change" Clegane.

Season 5[edit]

The procedure is seemingly a success as Ser Gregor returns to duty, now as a kingsguard, presenting himself as Cersei returns from her walk of shame. Though Qyburn's treatment has changed his physical appearance and behavior, and seemingly made him completely mute, Qyburn explains that Ser Gregor - not naming him as such - has sworn a vow of silence and vowed to serve as Cersei's personal bodyguard until all her enemies are destroyed and evil has been driven from the realm. He picks her up and carries her into Qyburn's care, her demeanor visibly lifted.

Season 6[edit]

Ser Gregor continues to act as Cersei's bodyguard to intimidate all those who may bother or mock her. He also rips the head off of a Faith Militant with his bare hands when they try to take Cersei into their custody. After Cersei destroys the Great Sept of Baelor and retakes power, she has Gregor torture Septa Unella in revenge for torturing her during her time in prison.

Season 7[edit]

Ser Gregor is still with Cersei as a member of the Queensguard. He is confronted by his brother Sandor "The Hound" Clegane in the season finale, where Sandor conveys an ominous message that he (Gregor) already knows who is coming for him and that he has always known.

Ser Gregor's face after going through the procedure Qyburn used to save him after the fight against Oberyn Martell

Season 8[edit]

Ser Gregor is present when Daenerys Targaryen arrives at King's Landing with all her forces, demanding the release of her advisor Missandei and Cersei's surrender. A defiant Cersei has Ser Gregor decapitate Missandei. Ser Gregor is killed in the penultimate episode when Cersei attempts to flee the Red Keep, meeting Gregor's vengeful brother on their way down. Sandor quickly dispatches her guards and Gregor slays Qyburn as he insists upon obeying her, instead engaging in a sword duel with Sandor (whose presence seems to break his spell of loyalty). After stubbornly fighting his brother by any means available, and even penetrating his bared face with a dagger all the way through his skull (suggesting that Gregor is, in fact, dead and reanimated by magical means; see golem), Sandor finally tackles him into an unsteady wall as the Red Keep crumbles around them. The effort is finally successful, and both brothers fall out of the stairwell into a raging inferno below.


  1. ^ "The Mountain in Belfast, and Game of Thrones filming in Split continues despite flooding". Watchers On The Wall. September 13, 2014. Retrieved October 10, 2014.
  2. ^ "HBO: Game of Thrones: Bio". HBO. Archived from the original on November 17, 2015. Retrieved September 5, 2016.
  3. ^ A Game of Thrones Appendix
  4. ^ "Game of Thrones Viewer's Guide". HBO.
  5. ^ A Game of Thrones Chapter 43: Eddard XI