Here's why Richard Madden aka Robb Stark won't feature in 'Game of Thrones' reunion specialDec 9 (AZINS) Actor Richard Madden has revealed he is not part of the Game of Thrones reunion special.

The 32-year-old actor, who played Robb Stark for three seasons on the HBO epic fantasy drama, told Entertainment Weekly that he did not participate in the reunion, which was filmed earlier this year in Belfast near the end of production on eight season.

"I didn't do any of that. I was (filming) Rocketman so I wasn't able to do that," Madden said.

The reunion special includes the final season cast and is hosted by Conan O'Brien. Some previous cast members participated as well, but so far only Sean Bean (Ned Stark) has been confirmed.

The special will not air on HBO but will be exclusive to a new Game of Thrones Blu-ray box set of the entire series that will be released in the second half of 2019.