HBO’s Game of Thrones prequel just added more actors into key roles from George R.R.

Martin’s fantasy universe.

The character is described as “Ser Otto loyally and faithfully serves both his king and his realm.

Steve Toussaint

Jorge Herrera/Getty Images

A peerless warrior and a dragonrider, Daemon possesses the true blood of the dragon.

Many would say that Rhaenyra was born with everything… but she was not born a man.”

Rhaenyra is considered a major rock star role within the show.

Rhys Ifans

Jeff Spicer/Getty Images

Paddy Considine (Peaky Blinders) as King Viserys I Targaryen.

A warm, kind, and decent man, Viserys only wishes to carry forward his grandfather’s legacy.

But good men do not necessarily make for great kings.")

Eve Best

David M Benett/Dave Benett/Getty Images

House of the Dragonchronicles a civil war among House Targaryen in Westeros and is based on George R.R.

Martin’s bookFire & Blood.

The series is expected to begin shooting in April and then air in 2022.

Sonoya Mizuno

Michael Bezjian/Getty Images