LONDON -- If there's one person you really don't want to get on the wrong side of, it's Cersei.

Boris Johnson -- who argued for the UK to leave the European Union, won, and then announced yesterday that he wouldn't be running for prime minister after all -- no longer merely has the wrath of a nation to contend with.

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Now, it appears he's also upset the current ruler of the Seven Kingdoms.

Following Johnson's announcement yesterday, Twitter went into a frenzy of memes. Plenty of celebrities also chipped in with their thoughts, including actor Ewan McGregor (who, judging by the tweet below, wasn't exactly thrilled with Boris' recent decisions).

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Late Thursday night, Lena Headey (a.k.a. Cersei "Burn them all" Lannister) took to Twitter to back him up.

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Ouch.

She wasn't the only Game of Thronesactor to support McGregor, either.

Daniel Portman -- who plays the mild-mannered Pod in the show and also retweeted McGreggor's original post -- made his views pretty clear, too.

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TopicsGame Of Thrones