HBO has confirmed a number of previously-unannounced cast members, confirming at least one casting that was already figured out by fans (the popular Graham McTavish of Outlander, The Hobbit, and Men in Kilts) and a number of other significant characters who play pivotal roles in the events covered by House of the Dragon, which is based on George R.R. Martin’s Fire and Blood.
Top L-R: Ryan Corr, Jefferson Hall, David Horovitch, Graham McTavish. Bottom L-R: Matthew Needham, Bill Paterson and Gavin Spokes