“Game of Thrones” casting news! Actor Gary Oliver will be playing a minor role, but a pivotal role in the fourth season of the HBO super-hit drama. Mr. Oliver is set to play a Bravosi captain, which could be news for Ayra Stark. Alex Graves will be directing the episode, as well as three additional others. He’s beloved by the cast of the show, so look for a lot of fun, and action!