House of the Dragon : Key Characters from the game of thrones prequel show.
Princess Rhaenyra Targaryen
The king’s first-born child princess Rhaenyra Targaryen is of pure Valyrian blood, and she is a dragon rider. Emma D’Arcy played the role with complete conviction.",
Prince DAEMON Targaryen
The younger brother to King Viserys, and peerless warrior and dragonrider, Daemon (Matt Smith) 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.
King Viserys Targaryen
Paddy Considine plays the role of Viserys who was 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
The Hand of the King, Ser Otto 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.
Played by Olivia Cook, Alicient is 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.
Lord Corlys Velaryon, “The Sea Snake” (played by Steve Toussaint)
Also known as The Sea Snake, The lord of House Velaryon, is a Valyrian bloodline as old as House Targaryen. He is 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.
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.
Ser Criston Cole
Of Dornish descent, Ser Criston (Fabien Frankel) is the common-born son of the steward to the Lord of Blackhaven. He has no claim to land or titles; all he has to his name is his honor and his preternatural skill with a sword.
Played by Sonoya Mizuno, Mysaria came to Westeros with nothing, sold more times than she can recall, and 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.