Betrayal, blood and burning, the latest episode of House of the Dragon season three had it all. Warning, there are spoilers in this piece if you are not up to date with House of the Dragon. Ser Ulf (Tom Bennett) has always been the weakest link when it comes to Rhaenyra's new dragonriders. Ormund Hightower (James Norton) and Ser Ulf (Tom Bennett). You can watch House of the Dragon on NOW (via the Entertainment membership) and Sky Atlantic.