The fates of left on her kill list, the biggest among them being Cersei Lannister (Lena Headey), who will herself no doubt figure heavily in the action as Game of Thrones heads for its epic conclusion.

Related: Ranking Surviving GoT Characters From Most Likely To Die To Least Likely

With HBO seeking to keep any and all spoilers off the internet, Game of Thrones cast have to be extra careful about everything they utter as they go about their promotional rounds ahead of season 8. That's why everyone was so shocked when Williams seemed to violate her sacred vow of silence during her appearance Monday night on The Tonight Show Starring Jimmy Fallon, when Fallon got her to reveal that Arya dies in episode two of the final season - a shocking revelation to be sure. See the clip below:

After Williams lets loose with her massive spoiler, the entire audience falls into stunned silence, and Williams herself seems stricken and actually begs Fallon to cut out her gaffe. Williams is so upset in fact that she has to get up and leave the set, causing Fallon to go after her in concern about her well-being. But of course, that's the moment when Williams and Fallon reveal that her spoiler was in fact just an April Fools prank. The audience seems relieved to find out that Williams was only acting - and doing a very good job of it (good enough to seemingly fool an entire TV audience on April Fools Day, a day when everyone should be looking out for pranks, especially if they're in the audience of a talk show).

So after Williams' non-spoiler, Game of Thrones fans can now rest assured that Arya Stark probably doesn't actually die in episode 2 of season 8. Arya's true fate is bound to be fascinating one way or another, and more than likely tragic given the character's arc, which has arguably been the most gut-wrenching on the entire show.

More: 10 Facts About The Starks Game Of Thrones Leaves Out

Source: The Tonight Show