Who’s in ‘House of the Dragon’? - Here is our manual for the vital characters

“Game of Thrones” acquainted audiences with the different houses

Beginning with the Targaryens, Starks, Baratheons and Lannisters.

"House of the Dragon" is primarily focused on members of House Targaryen, and their closest allies.

The ongoing leader of the Seven Kingdoms and the fifth Targaryen lord to sit on the Iron Throne.

House Targaryen

Viserys Targaryen  (Paddy Considine)

King Viserys Targaryen's younger sibling and possible successor — or so he believes.

Daemon Targaryen (Matt Smith)

King Viserys Targaryen’s first child, who rides a dragon named Syrax.

Rhaenyra Targaryen  (young: Milly Alcock, adult: Emma D’Arcy)

King Jaehaerys Targaryen’s grandchild who, as his oldest living descendant.

Rhaenys Targaryen  (Eve Best)

The Hand — of King Viserys, loyal to both his king and the realm.

House Hightower

Otto Hightower (Rhys Ifans)

A close friend of Princess Rhaenyra Targaryen

Alicent Hightower  (young: Emily Carey, adult: Olivia Cooke)

Westeros’ most famous seafaring adventurer, also known as “The Sea Snake.”

House Velaryon

Corlys Velaryon  (Steve Toussaint)