In an interview with Belgian magazine Humo, translated from Dutch by a helpful Reddit user, the usually cautious Harington appeared to have confirmed that he would remain in Game of Thrones.
"Let's just say that Game of Thrones will remain a part of my life for a while," he told Humo.
"I'll probably be in my thirties when it's over."
Williams also revealed a little about what her character Arya Stark will get up to in the sixth season of the hit HBO fantasy drama.