*Warning: Minor spoilers ahead for House of the Dragon season 3 episode 1.*As House of the Dragon season 3 finally arrives, it's brought with it a crucial new character in the form of James Norton's Lord Ormund Hightower.The dramatic first episode of season 3 gives us a brief introduction to the powerful Lord Ormund and sees him receiving a shady letter from his cousin Alicent (Olivia Cooke). But there's a lot more to come from the calculating c…