See photos of the cast in character for the Targaryen-focused series.

Welcome to a new age of House Targaryen.

Smith transforms into Prince Daemon Targaryen, the king’s younger brother and heir to the throne.

Emma D’Arcy and Matt Smith on ‘House of the Dragon’

Emma D’Arcy and Matt Smith on ‘House of the Dragon’.Ollie Upton/HBO

He’s the Lord of House Velaryon, a Valyrian bloodline as old as House Targaryen.

Cooke plays Otto’s daughter, Alicent Hightower.

She’s “the most comely woman in the Seven Kingdoms.

House of the Dragon

Steve Toussaint in ‘House of the Dragon.'.Ollie Upton/HBO

Filming onHouse of the Dragonbegan in late April with HBO releasingphotos of the table read.

Miguel Sapochnikand Ryan Condal showrun the series, which was created by Martin and Condal.

Martin serves as executive producer.

House of the Dragon

Olivia Cooke and Rhys Ifans in ‘House of the Dragon’.Ollie Upton/HBO