HBO's House of the Dragon has now rounded out its main cast with the addition of Rhys Ifans, Steve Toussaint, Eve Best and Sonoya Mizuno.
Toussaint will play Lord Corlys Velaryon, aka “The Sea Snake.” Described as "the most famed nautical adventurer in the history of Westeros. He built his house into a powerful seat that is even richer than the Lannisters and that claims the largest navy in the world."
Best is Princess Rhaenys Velaryon, "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."
Rhys Ifans has been cast as Otto Hightower, "the Hand of the King, who loyally and faithfully serves both his king and his realm. 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."
Finally, Mizuno will play Mysaria, who "came to Westeros with nothing, sold more times than she can recall, and 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."
They join Paddy Considine (Dead Man's Shoes, The World's End) in the lead role of King Viserys Targaryen, Olivia Cooke (Ready Player One) as Alicent Hightower, Emma D'Arcy (Truth Seekers) as Princess Rhaenyra Targaryen, and Matt Smith (Doctor Who) as Prince Daemon Targaryen.
House of the Dragon is being developed as a 10-episode first season, co-created by George R.R. Martin and Ryan Condal (Colony). Condal also wrote the script with Sara Lee Hess, and will serve as co-showrunner alongside Miguel Sapochnik. The latter will direct the pilot and additional episodes.
House of the Dragon is set for a 2022 premiere. Production is scheduled to kick off early next year.