Ryuji Yamazaki

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Ryuji Yamazaki (山崎やまざき 竜二りゅうじ) is a character from the Fatal Fury series. He was introduced in Fatal Fury 3: Road to the Final Victory as sub-boss, and is also a reoccurring character in The King of Fighters series. His nickname in KOF XV is Wicked Heretic (邪悪な異端者).

Billy Kane

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Billy Kane (ビリー・カーン) is a character in both the Fatal Fury and The King of Fighters series. His official nickname is "The Emperor's Right-Hand Man" (帝王こうていの片腕かとうで).