Welsh actor Rhys Ifans has been cast as Otto Hightower in HBO's new Game of Thrones prequel series, House of the Dragon.
Ifans will play a knight of House Hightower and Hand of the King to Viserys I Targaryen; an ancestor of Queen Daenerys I Targaryen.
The new series will be set 300 years before the events of Game of Thrones, and will recount the story of the House Targaryen.
HBO has yet to announce a release date for the prequel, but has suggested that it could air as early as 2022.
Matt Smith and Emma D'Arcy will also star in the series.