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Mark your calendars, folks. The highly-anticipated launch of Game of Thrones prequel series House of the Dragon has an official date.

House of the Dragon Paddy Considine
House of the Dragon: Paddy Considine as King Viserys Targaryen — Photograph by Ollie Upton/HBO

House of the Dragon premieres Sunday, August 21, on HBO. It was also be available to stream on HBO Max.

Based on George R.R. Martin’s novel Fire & Blood, the series is set 200 years before the events of Game of Thrones and tells the story of House Targaryen.

Starring in the ten-episode drama are:

Paddy Considine (The Third Day) as King Viserys Targaryen, chosen by the lords of Westeros to succeed the Old King, Jaehaerys Targaryen, at the Great Council at Harrenhal. A warm, kind, and decent man, Viserys only wishes to carry forward his grandfather’s legacy — but good men do not necessarily make for great kings.

Matt Smith (Doctor Who) as Prince Daemon Targaryen, younger brother to King Viserys and heir to the throne. A peerless warrior and a dragonrider, Daemon possesses the true blood of the dragon. But it is said that whenever a Targaryen is born, the gods toss a coin in the air…

Olivia Cooke (Bates Motel) as Alicent Hightower, the daughter of Otto Hightower, the Hand of the King, and the most comely woman in the Seven Kingdoms. She was raised in the Red Keep, close to the king and his innermost circle; she possesses both a courtly grace and a keen political acumen.

House of the Dragon Cooke & Ifans
House of the Dragon: Olivia Cooke as Alicent Hightower and Rhys Ifans as Otto Hightower — Photograph by Ollie Upton/HBO

Emma D’Arcy (Truth Seekers) as Princess Rhaenyra Targaryen, the king’s first-born child, she is of pure Valyrian blood, and she is a dragonrider. Many would say that Rhaenyra was born with everything… but she was not born a man.

Steve Toussaint (It’s a Sin) as Lord Corlys Velaryon, Lord of House Velaryon, a Valyrian bloodline as old as House Targaryen. As “The Sea Snake,” the most famed nautical adventurer in the history of Westeros, Lord Corlys built his house into a powerful seat that is even richer than the Lannisters and that claims the largest navy in the world.

Eve Best (Lucky Man) as Princess Rhaenys Targaryen, a dragonrider and wife to Lord Corlys Velaryon, “The Queen Who Never Was” was passed over as heir to the throne at the Great Council because the realm favored her cousin, Viserys, simply for being male.

Fabien Frankel (The Serpent) as Ser Criston Cole, of Dornish descent, the common-born son of the steward to the Lord of Blackhaven. Cole has no claim to land or titles; all he has to his name is his honor and his preternatural skill with a sword.

House of the Dragon Fabien Frankel
House of the Dragon: Fabien Frankel as Ser Criston Cole — Photograph by Gary Moyes/HBO

Sonoya Mizuno (Devs) as Mysaria, who came to Westeros with nothing, sold more times than she can recall. She could have wilted, but instead she rose to become the most trusted — and most unlikely — ally of Prince Daemon Targaryen, the heir to the throne.

Rhys Ifans (Berlin Station) as Otto Hightower, the Hand of the King. Ser Otto serves both his king and his realm loyally and faithfully. As the Hand sees it, the greatest threat to the realm is the king’s brother, Daemon, and his position as heir to the throne.

Additional cast members include:

Milly Alcock (Upright) as Young Princess Rhaenyra Targaryen.

Bethany Antonia (Stay Close) as Baela Targaryen, eldest daughter of Laena Velaryon and rider of the young dragon Moondancer.

Phoebe Campbell (Midsomer Murders) as Rhaena Targaryen, second daughter of Lady Laena and sister to Baela.

Emily Carey (Houdini and Doyle) as Young Alicent Hightower.

Harry Collett (Casualty) as Jacaerys Velaryon, eldest son of Rhaenyra Targaryen.

Ryan Corr (The Secrets She Keeps) as Ser Harwin ‘Breakbones’ Strong, said to be the strongest man in the Seven Kingdoms. Ser Harwin is the eldest son to Master of Laws Lyonel Strong and heir to Harrenhal.

Tom Glynn-Carney (Domina) as Aegon Targaryen, first-born son of King Viserys.

Jefferson Hall (Vikings) as Tyland Lannister, a crafty and calculating politician and twin to Lord Jason Lannister.

Jefferson Hall as Lord Jason Lannister, the Lord of Casterly Rock and twin to Ser Tyland Lannister.

David Horovitch (Mr. Turner) as Grand Maester Mellos, a voice of reason and trusted advisor to King Viserys.

Wil Johnson (The Larkins) as Ser Vaemond Velaryon, younger brother to Coryls Velaryon and commander in the Velaryon navy.

John Macmillan (Silk) as Ser Laenor Velaryon, son of Corlys Velaryon and Rhaenys Targaryen.

Graham McTavish (Outlander) as Ser Harrold Westerling, who has served in the Kingsguard since the days of King Jaehaerys; he is a paragon of chivalry and honor.

Ewan Mitchell (The Last Kingdom) as Aemond Targaryen, second-born son of Viserys, nephew to Daemon, and half-brother to Rhaenyra.

Theo Nate (Time) as Ser Laenor Velaryon, son of Corlys Velaryon and Rhaenys Targaryen.

Matthew Needham (Sanditon) as Larys Strong, younger son of Master of Laws Lyonel Strong, brought to court by his father.

Bill Paterson (Fleabag) as Lord Lyman Beesbury, Lord of Honeyholt and Master of Coin on King Viserys’s small council.

Phia Saban (The Last Kingdom) as Helaena Targaryen, second-born daughter of Viserys, sister to Aegon and Aemond, half-sister to Rhaenyra.

Gavin Spokes (The Ipcress File) as Lord Lyonel Strong, Master of Laws to King Viserys and Lord of Harrenhal.

Savannah Steyn (The Tunnel) as Lady Laena Velayron, daughter of Corlys Velaryon and Rhaenys Targaryen.

Series credits include: George R.R. Martin, Co-Creator/Executive Producer; Ryan Condal, Co-Creator/Co-Showrunner/Executive Producer/Writer; Miguel Sapochnik, Co-Showrunner/Executive Producer/Director; Sara Hess, Executive Producer/Writer; Jocelyn Diaz, Executive Producer; Vince Gerardis, Executive Producer; Ron Schmidt, Executive Producer; Clare Kilner, Director; Geeta V. Patel, Director; and Greg Yaitanes, Director/Co-Executive Producer.


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House of the Dragon: HBO Sets Premiere Date for ‘Game of Thrones’ Prequel
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