Who Is in the 'House of the Dragon' Season 3 Cast? Here's Every New and Returning Character ...Saudi Arabia

House of the DragonSeason 3 is nearly here. The show is a sprawling ensemble and as the Dance of the Dragons continues to move into the phase of all-out war, the list of combatants is only growing larger.

The HBO Game of Thrones prequel returns for Season 3 on June 21, with Team Black and Team Green heading toward some of the bloodiest battles in Targaryen history. After Season 2 ended with armies marching, dragons preparing for battle, and Aegon fleeing King’s Landing, the new season will bring back many of the show’s major players.

The House of the Dragon Season 3 cast includes returning stars Emma D'Arcy, Olivia Cooke, Matt Smith, Ewan Mitchell and Tom Glynn-Carney, along with new cast members playing key figures from George R.R. Martin’s Fire & Blood.

Here is your guide to the cast of House of the Dragon Season 3, from returning characters to new faces.

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House of the Dragon Season 3 Cast

Emma D'Arcy as Rhaenyra Targaryen

Ollie Upton/HBO

Emma D'Arcy returns as Rhaenyra Targaryen, King Viserys' chosen heir and the leader of Team Black. After Aegon was crowned in her place, Rhaenyra spent Season 2 trying to hold her claim together while deciding how far she was willing to go to win the Iron Throne.

Heading into Season 3, Rhaenyra appears ready to take a more aggressive approach. With new dragonriders on her side and Alicent offering her a path into King's Landing, she may be closer than ever to the throne. However, the war is also growing larger, bloodier and harder to control.

Outside of House of the Dragon, they are known for their work in Truth Seekers, Mothering Sundayand will appear in the Tom Cruisefilm Digger in 2026.

Matt Smith as Daemon Targaryen

Courtesy of HBO

Matt Smith returns as Daemon Targaryen, Rhaenyra's husband, uncle and one of Team Black's most dangerous allies. A skilled warrior and dragonrider, Daemon spent much of Season 2 away from Dragonstone after his role in the Blood and Cheese murder damaged his relationship with Rhaenyra.

Heading into Season 3, Daemon has reaffirmed his loyalty to Rhaenyra after his strange and unsettling time at Harrenhal. With the Riverlands becoming a major battleground, his army and his dragon Caraxes could be crucial to Team Black's next moves.

Outside of House of the Dragon, Smith is best known for playing the Eleventh Doctor in Doctor Who and Prince Philip in The Crown.

Olivia Cooke as Alicent Hightower

Courtesy of HBO

Olivia Cooke returns as Alicent Hightower, the former queen and mother of Aegon, Helaena, Aemond and Daeron. After helping place Aegon on the Iron Throne, Alicent spent Season 2 realizing how little control she actually had over the war she helped begin.

Heading into Season 3, Alicent is politically isolated. Aemond has pushed her aside, Aegon has fled King’s Landing, and her attempt to make peace with Rhaenyra may already be falling apart. Her priority now appears to be protecting Helaena and surviving the consequences of Team Green’s choices.

Outside of House of the Dragon, Cooke is known for Bates Motel, Slow Horses, and Sound of Metal.

Ewan Mitchell as Aemond Targaryen

Courtesy of HBO

Ewan Mitchell returns as Aemond Targaryen, Alicent’s second son, rider of Vhagar and the ruthless Prince Regent of Team Green. After Aegon was badly injured at the Battle of Rook’s Rest, Aemond took control in King’s Landing and pushed his mother out of power.

Heading into Season 3, Aemond is one of the most dangerous figures in the war. With Vhagar at his command and Aegon out of the capital, he has the power to steer Team Green into an even more brutal phase of the Dance of the Dragons.

Outside of House of the Dragon, Mitchell is known for The Last Kingdom, Saltburn and Wuthering Heights.

Tom Glynn-Carney as Aegon II Targaryen

Courtesy of HBO

Tom Glynn-Carney returns as Aegon II Targaryen, Alicent’s eldest son and the king Team Green placed on the Iron Throne instead of Rhaenyra. In Season 2, Aegon struggled to be taken seriously by his council before flying into battle at Rook’s Rest, where he was badly burned and injured.

Heading into Season 3, Aegon is no longer in King’s Landing. Larys helped him escape the capital in the Season 2 finale, warning that his life was in danger whether Team Green won or lost the war. His survival could complicate Alicent’s attempt to hand the city to Rhaenyra.

Outside of House of the Dragon, Glynn-Carney is known for Dunkirk and The King.

Phia Saban as Helaena Targaryen

Courtesy of HBO

Phia Saban returns as Helaena Targaryen, Aegon’s sister-wife and queen, whose son Jaehaerys was murdered by Blood and Cheese in Season 2. Helaena spent much of the season grieving, while her strange visions continued to suggest she understands more about the war than those around her.

Heading into Season 3, Helaena remains in King’s Landing under Aemond’s rule. Her relationship with her brother appears increasingly strained, especially after she tells him that he will not survive the war.

Outside of House of the Dragon, Saban is known for The Last Kingdom.

Related: ‘Game of Thrones’ Star Addresses Health Scare Recovery in Moving Speech

Harry Collett as Jacaerys Velaryon

Courtesy of HBO

Harry Collett returns as Jacaerys Velaryon, Rhaenyra’s eldest son and heir to the Iron Throne. In Season 2, Jace helped strengthen Team Black by proposing the search for new dragonriders with Targaryen blood.

Heading into Season 3, Jace remains one of Rhaenyra’s most important allies, but his position is complicated by the rise of the Dragonseeds. With new riders joining their cause and the Battle of the Gullet looming, Jace may have to prove his value in a war that is quickly becoming more dangerous.

Outside of House of the Dragon, Collett is known for Dolittle, Galavant and Dunkirk.

Bethany Antonia as Baela Targaryen

Courtesy of HBO

Bethany Antonia returns as Baela Targaryen, Daemon’s daughter, Rhaenyra’s stepdaughter and a loyal member of Team Black. A dragonrider bonded to Moondancer, Baela spent Season 2 proving herself as a fierce defender of Rhaenyra’s claim.

Heading into Season 3, Baela remains one of Team Black’s most valuable young players. With Jace preparing for a more dangerous phase of the war and the Velaryon fleet facing a major threat, Baela may be pulled closer to the front lines.

Outside of House of the Dragon, Antonia is known for Get Even, Doctor Who and Nolly.

Phoebe Campbell as Rhaena Targaryen

Courtesy of HBO

Phoebe Campbell returns as Rhaena Targaryen, Daemon’s daughter, Baela’s twin sister and one of the few young Targaryens without a dragon. In Season 2, Rhaena was sent away from Dragonstone, but her storyline took a turn when she appeared to find a wild dragon in the Vale.

Heading into Season 3, Rhaena may finally become a dragonrider. If she can claim the dragon she discovered, it could change her role in the war and give Team Black another powerful weapon.

Outside of House of the Dragon, they are known for Twofold and Modsomer Murders.

Steve Toussaint as Corlys Velaryon

Courtesy of HBO

Steve Toussaint returns as Corlys Velaryon, the Lord of the Tides and head of House Velaryon. After losing Rhaenys at the Battle of Rook’s Rest, Corlys spent Season 2 grieving while also trying to secure the future of his house.

Heading into Season 3, "The Sea Snake" remains one of Team Black’s most important allies. His fleet is central to Rhaenyra’s war effort, but Team Green’s alliance with the Triarchy could put his naval power directly at risk.

Outside of House of the Dragon, Toussaint is known for Prince of Persia: The Sands of Time, Before We Die and Small Axe.

Abubakar Salim as Alyn of Hull

Courtesy of HBO

Abubakar Salim returns as Alyn of Hull, one of Corlys Velaryon’s sons and the newly named heir to Driftmark. Unlike his brother Addam, Alyn has not claimed a dragon, but his connection to Corlys gives him a major place in House Velaryon’s future.

Heading into Season 3, Alyn is positioned to become even more important as Corlys’ fleet faces the threat of the Triarchy. With the Velaryon line shaken by Rhaenys’ death, Alyn may have to prove he can carry the family name into the next stage of the war.

Outside of House of the Dragon, Salim is known for Raised by Wolves, Assassin’s Creed Origins and Jamestown.

Clinton Liberty as Addam of Hull

Courtesy of HBO

Clinton Liberty returns as Addam of Hull, Alyn’s brother and one of Corlys Velaryon’s sons. In Season 2, Addam became a key figure for Team Black after Seasmoke chose him as a dragonrider.

Heading into Season 3, Addam’s new bond with Seasmoke makes him one of Rhaenyra’s most valuable assets. As the war expands and the Battle of the Gullet approaches, Addam could be pulled directly into the fight for control of the seas.

Outside of House of the Dragon, Liberty is known for Touchdown, Handsome Devil and Red Election.

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Sonoya Mizuno as Mysaria

Courtesy of HBO

Sonoya Mizuno returns as Mysaria, the former White Worm who once operated as a powerful spy in King's Landing. In Season 2, she became one of Rhaenyra’s most important advisers, helping her understand the political power of the smallfolk.

Heading into Season 3, Mysaria could play a major role in Rhaenyra’s attempt to take King’s Landing. With her knowledge of the city, its secrets and its people, she gives Team Black an advantage that goes beyond dragons and armies.

Outside of House of the Dragon, Mizuno is known for Ex Machina, La La Land and Annihilation.

Fabien Frankel as Criston Cole

Courtesy of HBO

Fabien Frankel returns as Ser Criston Cole, the former Kingsguard knight who became Hand of the King after Aegon fired Otto Hightower. Once defined by loyalty, resentment and religious certainty, Criston spent Season 2 leading Team Green into battle as the war grew more brutal.

Heading into Season 3, Criston appears shaken by what the war has become. After Rook’s Rest and the horrors of marching through the Crownlands, he may continue to question the faith and purpose that once drove him, even as he remains one of Team Green’s most important military figures.

Outside of House of the Dragon, Frankel is known for Task and The Serpent.

Rhys Ifans returns as Otto Hightower, Alicent’s father and the seasoned political operator who helped place Aegon on the Iron Throne. In Season 2, Otto was removed as Hand of the King after clashing with Aegon over how to handle the war.

Heading into Season 3, Otto’s future is unclear. At the end of Season 2, he was briefly seen imprisoned in a cage, suggesting that one of Team Green’s most experienced strategists may be far from the center of power when the war resumes.

Outside of House of the Dragon, Ifans is known for Notting Hill, The Amazing Spider-Man and The King’s Man.

Matthew Needham as Larys Strong

Courtesy of HBO

Matthew Needham returns as Larys Strong, the calculating master of whispers who has survived by making himself useful to the most powerful people in King’s Landing. In Season 2, Larys attached himself more closely to Aegon after the king was badly injured at Rook’s Rest.

Heading into Season 3, Larys has helped Aegon escape King’s Landing, betting his own future on the injured king’s survival. With Aemond in control of the capital and Alicent trying to hand the city to Rhaenyra, Larys may be one of the few people who knows where Aegon really is.

Outside of House of the Dragon, Needham is known for Napoleon, Sherlock and The Ritual.

Freddie Fox as Gwayne Hightower

Courtesy of HBO

Freddie Fox returns as Ser Gwayne Hightower, Alicent’s brother and a knight of House Hightower. In Season 2, Gwayne rode with Criston Cole through the Crownlands and saw firsthand how brutal the war between Team Green and Team Black had become.

Heading into Season 3, Gwayne remains tied to Team Green’s military campaign. As Aemond takes a harsher grip on power and Alicent loses influence, Gwayne could find himself caught between loyalty to his family and the reality of the war they are fighting.

Outside of House of the Dragon, Fox is known for Slow Horses, Victor Frankensteinand The Three Musketeers.

Jefferson Hall as Tyland and Jason Lannister

Courtesy of HBO

Jefferson Hall returns as twin brothers Tyland and Jason Lannister, two powerful members of House Lannister aligned with Team Green. Tyland serves on the Green Council in King’s Landing, while Jason commands Lannister forces from the Westerlands.

Heading into Season 3, both brothers could become more important to the war effort. Tyland secured the Triarchy’s ships in the Season 2 finale, giving Team Green a way to challenge Corlys Velaryon’s blockade, while Jason’s army adds another major force against Rhaenyra.

Outside of House of the Dragon, Hall is known for Tenet, Oppenheimer and Star Wars: The Force Awakens.

Gayle Rankin as Alys Rivers

Courtesy of HBO

Gayle Rankin returns as Alys Rivers, the mysterious woman at Harrenhal whose strange knowledge and unsettling presence made her one of Season 2’s most intriguing new characters. During Daemon’s time at Harrenhal, Alys seemed to understand his visions, guilt and ambitions better than almost anyone around him.

Heading into Season 3, Alys remains tied to Harrenhal as the war moves deeper into the Riverlands. With Daemon now committed to Rhaenyra’s cause and Aemond rising as Team Green’s most dangerous player, Alys could become an even more important figure in the conflict.

Outside of House of the Dragon, Rankin is known for GLOW, Perry Mason and The Greatest Showman.

Kieran Bew as Hugh Hammer

Courtesy of HBO

Kieran Bew returns as Hugh Hammer, a blacksmith with Targaryen blood who becomes one of Rhaenyra’s new dragonriders. In Season 2, Hugh answered Rhaenyra’s call for potential dragonseeds and claimed Vermithor, one of the most powerful dragons in Westeros.

Heading into Season 3, Hugh gives Team Black a major advantage in the war. However, his sudden rise from commoner to dragonrider could create tension as Rhaenyra relies on people whose loyalty has not been tested for long.

Outside of House of the Dragon, Bew is known for Warrior and Da Vinci's Demons.

Tom Bennett as Ulf White

Courtesy of HBO

Tom Bennett returns as Ulf White, a common man with Targaryen blood who becomes one of Rhaenyra’s new dragonriders. In Season 2, Ulf claimed Silverwing and joined Team Black, giving Rhaenyra another powerful dragon as the war widened.

Heading into Season 3, Ulf’s sudden rise could become a major complication. While his bond with Silverwing makes him valuable, his lack of experience with power, politics and war may test how much Rhaenyra can actually trust the Dragonseeds.

Outside of House of the Dragon, Bennett is known for After Life and Love & Friendship.

Kurt Egyiawan as Grand Maester Orwyle

Courtesy of HBO

Kurt Egyiawan returns as Grand Maester Orwyle, the maester serving the royal court in King’s Landing and a member of the Green Council. In Season 2, Orwyle treated Aegon after the Battle of Rook’s Rest and remained close to the center of power as Team Green became increasingly unstable.

Heading into Season 3, Orwyle remains in King’s Landing under Aemond’s rule. With Aegon gone from the capital and Alicent pushed aside, he may have to navigate an even more dangerous court while continuing to serve whoever holds power.

Outside of House of the Dragon, Egyiawan is known for Beasts of No Nation, A Real Pain and Skyfall.

Abigail Thorn as Sharako Lohar

Courtesy of HBO

Abigail Thorn returns as Sharako Lohar, the Triarchy admiral who struck an unexpected alliance with Tyland Lannister in the Season 2 finale. After testing Tyland’s resolve, Lohar agreed to bring the Triarchy’s ships into the war on Team Green’s side.

Heading into Season 3, Lohar could become a major threat to Team Black’s control of the seas. With Corlys Velaryon’s blockade still central to Rhaenyra’s war effort, Lohar’s fleet appears to be setting up one of the season’s biggest conflicts: the Battle of the Gullet.

Outside of House of the Dragon, Thorn is known for Philosophy Tube, The Acolyte and The Prince.

Amanda Collin as Jayne Arryn

Courtesy of HBO

Amanda Collin returns as Jeyne Arryn, the Lady of the Eyrie and the ruler of the Vale. In Season 2, Jeyne agreed to shelter Rhaena and Rhaenyra’s younger children, but she was frustrated when Rhaenyra sent young dragons instead of a fully grown dragon to protect the Vale.

Outside of House of the Dragon, Collin is known for Raised by Wolves and Kaos.

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Archie Barnes as Oscar Tully

Courtesy of HBO

Archie Barnes returns as Oscar Tully, the young Lord of Riverrun and head of House Tully. In Season 2, Oscar became an important Riverlands player after asserting his authority in front of Daemon and the other riverlords.

Outside of House of the Dragon, Barnes is known for The Batman, The Dig and Dune: Prophecy.

Simon Russell Beale as Simon Strong

Courtesy of HBO

Simon Russell Beale returns as Simon Strong, the castellan of Harrenhal and the great-uncle of Larys Strong. In Season 2, Simon hosted Daemon during his strange stay at Harrenhal, often reacting to the chaos around him with weary patience and dry humor.

Heading into Season 3, Simon remains tied to one of the war’s most important locations. With Daemon using Harrenhal as a base for Team Black and Aemond expected to become more aggressive, Simon could find himself in serious danger as the Riverlands conflict escalates.

Outside of House of the Dragon, Beale is known for The Death of Stalin, Into the Woods and The Outfit.

James Norton as Ormund Hightower

Courtesy of HBO

James Norton joins House of the Dragon as Ormund Hightower, the Lord of Oldtown and a major new figure on Team Green. Ormund is Otto Hightower’s nephew and the cousin of Alicent and Gwayne, making him another powerful member of the family at the center of Aegon’s claim.

Outside of House of the Dragon, Norton is known for Little Women, Mr. Jones and Happy Valley.

Tommy Flanagan as Roderick Dustin

Courtesy of HBO

Tommy Flanagan joins House of the Dragon as Roderick Dustin, also known as Roddy the Ruin, the Lord of Barrowton and head of House Dustin. A fierce northern fighter, Roderick is one of the men marching south in support of Rhaenyra and Team Black.

Outside of House of the Dragon, Flanagan is known for Sons of Anarchy, Braveheart and Gladiator.

Dan Fogler as Torrhen Manderly

Dan Fogler joins House of the Dragon as Torrhen Manderly, a member of House Manderly, one of the powerful northern houses drawn into the Dance of the Dragons.

Outside of House of the Dragon, Fogler is known for Fantastic Beasts and Where to Find Them, A Complete Unknown and The Walking Dead.

Tom Cullen as Luthor Largent

Photo by Larry Horricks/HISTORY

Tom Cullen joins House of the Dragon as Luthor Largent, a knight connected to King’s Landing and the City Watch. His arrival adds another figure inside the capital as the war puts more pressure on the people trying to hold the city together.

Outside of House of the Dragon, Cullen is known for his work on Weekend, Black Mirrorand Downton Abbey.

Joplin Sibtain as Jon Roxton

Joplin Sibtain joins House of the Dragon as Ser Jon Roxton, also known as Bold Jon Roxton, the head of House Roxton and a knight fighting for Team Green. In Fire & Blood, Jon is tied to one of the war’s most infamous Valyrian steel swords, Orphan-Maker.

Outside of House of the Dragon, Sibtain is known for Andor, Doctor Who and The Strangers: Chapter 1.

Barry Sloane as Adrian Redfort

Barry Sloane joins House of the Dragon as Ser Adrian Redfort, a knight from House Redfort who appears to be aligned with Rhaenyra and Team Black. Outside of House of the Dragon, Sloane is known for The Sandman and Revenge.

Annie Shapero as Alysanne Blackwood

Annie Shapero joins House of the Dragon as Alysanne Blackwood, also known as Black Aly, a fierce member of House Blackwood from the Riverlands. In Fire & Blood, Alysanne is known as a skilled fighter and archer who supports Rhaenyra during the Dance of the Dragons. She is known for her work in The Narrow Road to the Deep North and Saccharine.

Related: 'House of the Dragon' Season 2 Recap: What You Need to Remember Before Season 3 Arrives

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