As fans may know, Cox turned down the opportunity to play a part on"Game of Thrones.
Interestingly, Robert Baratheon was not the only huge role that Cox has passed on.
Brian Cox Reveals The Reason He Turned Down A Part On Game Of Thrones
Brian Cox is well known for playing Logan Roy on "Succession" but he could have been known for another high-profile role in an arguably even more famous show.
