Game of Thrones was one of the defining television shows of the 21st century and helped launch the careers of many famous movie and TV stars. As one of the most popular television shows of all time, its no surprise that appearing on Game of Thrones opened the door for its actors to pursue other incredible projects across various genres. While for many cast members, Game of Thrones signaled their breakout role, there were other performers who had long and illustrious careers before they found themselves caught up in the conflicts of the Seven Kingdoms of Westeros.
