Ser Harrold Westerling is one of the most curious characters in the vast tapestry of House of the Dragon. Unlike the other players, he was mentioned only once in the books, and that was when he passed on two years before the wedding of Rhaenyra and Laenor. In the series, however, he’s the very much alive Lord Commander of the Kingsguard, played by the inimitable Graham McTavish.
