The people we meet in House of the Dragon’s source material, Fire & Blood, are not characters in the traditional sense. The book takes the form of a historical text told through multiple primary sources, each biased in their own way. The most fleshed-out figures are lucky if they get a single defining trait, the others are little more than cardboard cutouts with hard-to-spell names. This affords the writers and performers of House of the Dragon great leeway when it comes to characterization.