19. Mark Addy
If there was anyone who just had to play Robert Baratheon, it was Mark Addy. Robert Baratheon was Ned Stark’s old friend, the King of Westeros, and the leader of Robert’s Rebellion that was responsible for where many of the characters are at the start of the series. Robert died at the end of Season 1, and everything went to hell in a handbasket after that. After leaving the series, Mark Addy was cast in an Amazon original show called Oasis. The pilot is available for free streaming.