A “Game of Thrones” producer revealed that British actor Jacob Anderson, who plays Grey Worm, improvised while shooting the battle of Winterfell and started yelling, “Mike PenceMichael (Mike) Richard PenceFEC chair calls on Trump to provide evidence of NH voter fraud Five years after Yazidi genocide, US warns ISIS is rebounding Log Cabin Republicans endorse Trump MORE!”

Producers David Benioff and D.B. Weiss appeared on “Jimmy KimmelJames (Jimmy) Christian KimmelFCC fines 'The Walking Dead,' Jimmy Kimmel for use of emergency alert tones Jimmy Kimmel laments how quickly 'we seem to forget about these tragedies' Julia Louis-Dreyfus calls Williamson's Seinfeld reference 'bizarre' MORE Live!” on Thursday to discuss the final season of the hit HBO show and revealed how Anderson got through the long nights of shooting the battle sequence. 

Weiss said director Miguel Sapochnik asked Anderson, who plays the leader of the ruthless Unsullied troops, to improvise something in the fantasy language of Valyrian to rally his fighters.

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"Jacob was so tired and so delirious and so out of it that all he could think to yell was, 'Mike Pence! Mike Pence! Mike Pence!" Weiss said. "So in one of those scenes when Jacob is yelling and pointing ... what he was actually saying was 'Mike Pence! Mike Pence!'"

The scene was later dubbed over with a command in Valyrian, and Anderson was wearing a mask, Weiss added, so you couldn't read his lips.

The highly anticipated battle scene took more than 50 nights to shoot and caused a sensation on social media when it aired last weekend.

It is expected to be the most-watched episode in the HBO program's eight-year history. The season premiere on April 14 attracted 17.4 million viewers to the pay-for channel.

The show, which depicts the fictional country of Westeros, has been described by Hillary ClintonHillary Diane Rodham ClintonLewandowski on potential NH Senate run: If I run, 'I'm going to win' Fighter pilot vs. astronaut match-up in Arizona could determine control of Senate Progressive Democrats' turnout plans simply don't add up MORE as the television show that most accurately reflects her life in politics.