Naruto characters - Nine-tailed demon fox

Nine-tailed demon fox
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The nine-tailed demon fox (九尾の妖狐, Kyūbi no Yōko^?) is the most powerful of the tailed beasts. It is regarded as an age-old natural disaster, as a single swipe of one of its tails can raise tsunamis and flatten mountains. Twelve years before the start of the series, the fox attacked Konohagakure. Its attack was stopped by the Fourth Hokage, who gave his life to seal the fox into his son, Naruto Uzumaki.

^[122] Throughout the series, Naruto tries to gain dominance over the fox, as harnessing its great strength allows him to perform jutsu that would normally be impossible for a ninja of his level.^[144] At the same time the fox tries to gain control over Naruto, provoking his rage and thus allowing its violent personality to influence and consume him. As Naruto draws upon more of the fox's power the seal keeping it trapped within him weakens, and in the event the seal is broken the fox will be released.^[168] In the Japanese anime, its seiyū is Tesshō Genda, and in the English adaption the fox is voiced by Paul St. Peter.^[170][171]