John Bradley Doesn't Know What He Knows About the End of 'Game of Thrones' - Watch!

John Bradley doesn’t even know what he knows!

The 30-year-old Game of Thrones star made an appearance on The Ellen DeGeneres Show on Thursday (May 2).

PHOTOS: Check out the latest pics of John Bradley

During his appearance, John talked about watching the “stressful” episode for the first time last Sunday (the Battle of Winterfell), and how he was surprised his beloved character, Samwell Tarly, survived the epic battle.

He also revealed that episode took 55 nights to film the episode, from 4 p.m. to 6 a.m. during the Belfast Winter. He admitted he thought he knew how the series would end, but is now questioning it after reading an interview that has him thinking otherwise. Plus, John reminisced about the show being his first audition out of drama training nine years ago and how grateful he is to play a character that makes an impact on his fans.

Watch his appearance!