Dio Brando (ディオ・ブランドー, Dio Burandō), later known simply as DIO (DIOディオ), is the main antagonist of the first and third parts of the JoJo's Bizarre Adventure series, Phantom Blood and Stardust Crusaders, as well as the first main antagonist of the series overall. He is also a primary antagonist in the sixth part of the series, Stone Ocean.

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