House of the Dragon Cast

Matt Smith stars as Prince Daemon Targaryen, known for his ambition and combat prowess.

Olivia Cooke portrays Alicent Hightower, who has significant influence in the court politics of the Targaryen dynasty.

Rhys Ifans appears as Ser Otto Hightower, the Hand of the King and a shrewd political player.

Robert Ryan is part of the show as a Household Targaryen Guard.

Emma D'Arcy plays Princess Rhaenyra Targaryen, a key character in the battle for the Iron Throne.

Graham McTavish plays Ser Harrold Westerling, a loyal member of the Kingsguard.

Sian Brooke portrays Queen Aemma Arryn, whose marriage to King Viserys I Targaryen is politically significant.

David Horovitch is Grand Maester Mellos, the chief adviser on medical and scholarly matters.

Bill Paterson plays Lord Lyman Beesbury, a seasoned member of the king's council.

Gavin Spokes is Lord Lyonel Strong, a notable lord in the realm.

Michael Carter stars as King Jaehaerys Targaryen, the ruler whose decisions have long-reaching effects.