HBO is getting ready to unleash their first Game of Thrones spin-off on the masses with House of the Dragon this weekend and fans are ready for the next chapter in Westeros. The series is a prequel to the original focusing on the Targaryen family's rise to power. House of the Dragon features a star-studded cast including Matt Smith, Olivia Cooke, and Graham McTavish. McTavish recently sat down with ComicBook.com's Brandon Davis, where he discussed the life of a Kingsguard member before the events of the original series.