If you’ve been trying to keep track of every lord, queen, and dragon rider in HBO’s epic fantasy series, you’re not alone. The House of the Dragon characters span multiple generations of Targaryens, Hightowers, Velaryons, and more — and with Season 3 set to premiere on June 21, 2026, now is the perfect time to get fully caught up. This comprehensive guide breaks down every major character, their allegiances, their dragons, and what to expect in the coming season.
What Is House of the Dragon About?
Set approximately 200 years before the events of Game of Thrones, House of the Dragon is HBO’s prequel series based on George R.R. Martin’s novel Fire & Blood. The show centers on the Targaryen dynasty’s descent into civil war — a brutal conflict known as the Dance of the Dragons — triggered by a succession crisis over the Iron Throne. According to showrunner Ryan Condal, the three “main characters” driving the narrative are Rhaenyra Targaryen, Daemon Targaryen, and Alicent Hightower.
The series is now entering its third season, with HBO already having ordered a fourth and final season planned for 2028.
Team Black vs. Team Green: The Two Sides of the War
Before diving into individual characters, it’s essential to understand the two warring factions:
- Team Black supports Queen Rhaenyra Targaryen, the daughter King Viserys named as his heir.
- Team Green supports King Aegon II Targaryen, Rhaenyra’s younger half-brother, who was crowned after a deathbed misunderstanding led his mother Alicent to claim the throne for him.
Team Black: The Blacks’ Key Characters
Rhaenyra Targaryen — Played by Emma D’Arcy
Rhaenyra is the central figure of the entire series. Named heir to the Iron Throne by her father King Viserys I, she rides the dragon Syrax and commands fierce loyalty from her supporters. As per the show’s narrative, she was first seen as a dragon-riding teenager (played by Milly Alcock in early Season 1) before Emma D’Arcy took over the role in adulthood. D’Arcy’s performance earned them a Golden Globe nomination for the role. In Season 2, Rhaenyra consolidated her forces at Dragonstone while dealing with devastating personal losses. She returns for Season 3 as the war escalates dramatically.
Dragon: Syrax
Daemon Targaryen — Played by Matt Smith
Prince Daemon is Rhaenyra’s uncle and husband — and arguably the most fearsome warrior in the series. He rides the legendary dragon Caraxes and is described by the show’s own creators as the most bloodthirsty character in play. According to the source material (Fire & Blood), Daemon is destined to face off against Prince Aemond in a climactic aerial battle above the Gods Eye lake — a confrontation fans are eagerly anticipating in Season 3.
Dragon: Caraxes
Corlys Velaryon — Played by Steve Toussaint
Known as “The Sea Snake,” Lord Corlys Velaryon is the wealthiest man in Westeros and the head of House Velaryon. He is a crucial military ally for Rhaenyra, commanding the most powerful fleet in the realm. His family’s Valyrian dragon-riding lineage makes them natural allies of Team Black. Steve Toussaint returns for Season 3, and his character notably leaked a major plot detail when he accidentally posted a Season 3 table-read photo on Instagram in March 2025 (since deleted).
Dragon: None (but his family rides several)
Jacaerys Velaryon — Played by Harry Collett
Rhaenyra’s eldest son, Jace, serves as one of her most loyal and capable envoys. He rides the dragon Vermax and has been working hard to secure alliances for his mother’s cause. According to reports, the Battle of the Gullet — expected to open Season 3 — may mark a tragic turning point for this character.
Dragon: Vermax
Baela Targaryen — Played by Bethany Antonia
Baela is Daemon’s daughter from his first marriage and a fierce dragon rider in her own right. She rides Moondancer and represents the next generation of Targaryen warriors fighting under the Black banner.
Dragon: Moondancer
Team Green: The Greens’ Key Characters
Alicent Hightower — Played by Olivia Cooke
Once Rhaenyra’s closest friend and confidante, Alicent became her greatest rival after marrying King Viserys and bearing him children. Convinced that Rhaenyra would harm her children to secure the throne, Alicent pushed relentlessly to have her son Aegon crowned king. As per the lore of Fire & Blood, Alicent is one of the few major characters to survive the Dance of the Dragons — though her fate is far from a happy one. Olivia Cooke confirmed in an August 2025 interview with Collider that Season 3 “starts off with a bang,” as the first two episodes were originally written as the Season 2 finale.
Dragon: None
King Aegon II Targaryen — Played by Tom Glynn-Carney
Aegon II is the reluctant king — a man who never truly desired the Iron Throne, yet was maneuvered into claiming it. As described in the show, despite his best efforts to be a proactive ruler, his councillors view him as rash and impulsive. His attempt to fight at the Battle of Rook’s Rest left him severely injured at the hands of his own brother Aemond. Tom Glynn-Carney reprises the role in Season 3 as the war’s stakes grow even higher.
Dragon: Sunfyre
Prince Aemond Targaryen — Played by Ewan Mitchell
Aemond is arguably the most dangerous individual in the entire conflict. He wears a sapphire in his missing eye — lost during a childhood brawl — and rides the largest living dragon, Vhagar. Cold, calculating, and deeply resentful of his older brother Aegon, Aemond serves as the de facto military muscle for Team Green. He killed Rhaenyra’s son Luke at the end of Season 1, sparking the full-scale war. According to the source material, his fate involves a legendary aerial duel with Daemon above the Gods Eye — one of the most anticipated moments in the entire series.
Dragon: Vhagar
Ser Criston Cole — Played by Fabien Frankel
Once Rhaenyra’s personal sworn shield and secret lover, Criston Cole became one of her most bitter enemies after she spurned him. He rose through the ranks to become the Lord Commander of the Kingsguard under Aegon II and serves as one of the Greens’ key military commanders. His complex arc continues into Season 3.
Dragon: None
Ser Otto Hightower — Played by Rhys Ifans
The scheming Hand of the King and Alicent’s father, Otto has long been the architect of the Green faction’s political maneuvers. A veteran manipulator, he placed his daughter close to King Viserys with the explicit goal of gaining influence over the throne. Rhys Ifans returns for Season 3, with the show potentially keeping his character alive longer than the books.
Dragon: None
Queen Helaena Targaryen — Played by Phia Saban
Helaena is Aegon II’s sister-wife — a gentle, prophetic woman who rides the dragon Dreamfyre. The tragedy of her arc deepened considerably in Season 2, and she returns for Season 3 in what promises to be a devastating continuation of her story.
Dragon: Dreamfyre
Other Notable House of the Dragon Characters
Mysaria — Played by Sonoya Mizuno
Once a dancer and brothel worker, Mysaria rose to become Daemon’s closest confidante and a formidable spymaster. She operates in the shadows of both factions, gathering intelligence for Rhaenyra’s cause. Her sharp political mind makes her one of the show’s most unpredictable figures.
Rhaena Targaryen — Played by Phoebe Campbell
Rhaena is Daemon’s second daughter and Baela’s twin sister. Unlike many Targaryens, she bonded late with a dragon, but her courage and loyalty to Team Black remain unshaken.
Larys Strong — Played by Matthew Needham
The “Clubfoot” Lord Larys Strong is one of the most sinister characters in Westeros. A master of secrets and a deeply unsettling presence, he has made himself indispensable to Alicent while pursuing his own hidden agenda.
New House of the Dragon Characters in Season 3 (2026)
Season 3 significantly expands the cast with several major new additions, as the Dance of the Dragons grows in scope.
Ormund Hightower — Played by James Norton
According to Variety (January 31, 2025), James Norton (The Nevers) joins the series as Lord Ormund Hightower, Otto’s nephew and Alicent’s cousin. He is the Lord of Oldtown and is currently leading the Hightower host in a march toward King’s Landing. The first official photos of Norton in the role were released by HBO in December 2025, giving fans their first look at this critical new figure in the Green faction’s military campaign.
Roderick “Roddy the Ruin” Dustin — Played by Tommy Flanagan
Tommy Flanagan (Sons of Anarchy) was confirmed by Deadline (March 31, 2025) to play Lord Roderick Dustin, nicknamed “Roddy the Ruin.” He is a seasoned and feared battlefield commander who leads an army known as the Winter Wolves in support of Rhaenyra. His forces are expected to clash directly with Ormund Hightower’s Reach army.
Torrhen Manderly — Played by Dan Fogler
Also confirmed by Deadline, Dan Fogler (Fantastic Beasts) will portray Ser Torrhen Manderly, described as a gluttonous yet fair knight who becomes a strong ally of Rhaenyra — and plays a key role in the Fall of King’s Landing.
Prince Daeron Targaryen
One of the most highly anticipated character introductions, Prince Daeron — the youngest child of King Viserys and Alicent — will finally appear in Season 3. He rides the dragon Tessarion and has been conspicuously absent from the show until now. His arrival was confirmed by showrunner Ryan Condal and leaked by accident when actor Steven Toussaint’s table-read photo revealed Daeron’s name on the episode 4 character sheet.
Dragon: Tessarion
Ser Luthor Largent — Played by Tom Cullen
Tom Cullen (Downton Abbey) joins as Ser Luthor Largent, a knight of the City Watch. His role in the chaos of war-torn King’s Landing is expected to be significant.
Ser Jon Roxton — Played by Joplin Sibtain
Joplin Sibtain (Andor) will portray Ser ‘Bold’ Jon Roxton, head of the Roxton family and a supporter of the Greens fighting for Aegon II.
House of the Dragon Season 3: What to Expect
Season 3 premieres on June 21, 2026, on HBO and Max, with eight episodes rolling out weekly through a finale on August 9, 2026. According to Olivia Cooke, the season opens immediately after Season 2’s cliffhanger — with the first two episodes originally written as Season 2’s finale.
Key events expected in Season 3, drawn from Fire & Blood and production reports, include:
- The Battle of the Gullet — a massive naval engagement likely to claim at least one major life
- The Fall of King’s Landing — Rhaenyra’s forces retaking the capital
- The legendary duel between Daemon and Aemond above the Gods Eye
- Prince Daeron’s debut and his dragon Tessarion entering the war
- The Winter Wolves marching south under Roddy the Ruin
As showrunner Ryan Condal stated at a March 2025 press conference, “There are some major new characters this season, but 85 percent of them, we already knew who they were, and it just makes it much more rewarding to write.”
Frequently Asked Questions (FAQ)
Q: Who are the main characters in House of the Dragon? According to showrunner Ryan Condal, the three primary characters are Rhaenyra Targaryen, Daemon Targaryen, and Alicent Hightower — though the show is a true ensemble with many key players on both sides.
Q: Who rides which dragon in House of the Dragon? Rhaenyra rides Syrax, Daemon rides Caraxes, Aemond rides Vhagar, Aegon II rides Sunfyre, Helaena rides Dreamfyre, Baela rides Moondancer, and Jace rides Vermax. Prince Daeron, joining Season 3, rides Tessarion.
Q: When does House of the Dragon Season 3 premiere? Season 3 premieres on June 21, 2026, on HBO and Max, running eight episodes through August 9, 2026.
Q: Is House of the Dragon ending? No, not yet. HBO has confirmed a fourth and final season, currently planned for 2028.
Q: What is the Dance of the Dragons? It is the Targaryen civil war at the heart of the show — a brutal conflict between Rhaenyra Targaryen (Team Black) and Aegon II Targaryen (Team Green) for control of the Iron Throne.
With Season 3 just days away and the Dance of the Dragons reaching its bloodiest turning point yet, now is the time to pick your side — are you Team Black or Team Green? Drop your allegiance in the comments and let us know which character you’re rooting for!