House Of The Dragon star Rhys Ifans said acting in the Game Of Thrones prequel was a great opportunity to work with “incredibly talented” actors he admires including Matt Smith, Paddy Considine and Olivia Cooke. The star-studded cast and creators of the series walked the red carpet on Monday in Leicester Square, ahead of the show’s launch on Sky. House Of The Dragon is a fantasy tale based on author George RR Martin’s Fire And Blood which is set 200 years before the events of Game Of Thrones.