Diego Brando is not related by blood or family ties to Dio Brando. Instead, the connection between them is thematic and conceptual rather than biological.
They exist in completely separate continuities within JoJo’s Bizarre Adventure.
Dio Brando is a major antagonist from Parts 1 and 3 of the series, which take place in the original timeline. Diego Brando, on the other hand, appears in Part 7 (Steel Ball Run), which is set in an alternate universe that is independent of the earlier parts.
Because of this universe separation, characters from Parts 1–6 do not have direct familial relationships with their counterparts in Part 7.
The similarity in their names is intentional. Author Hirohiko Araki designed Diego Brando as a counterpart or “parallel version” of Dio Brando.
This is a recurring storytelling device in Part 7, where many characters resemble or echo characters from earlier parts but are reinterpreted in new roles and contexts.
Diego Brando is one such reinterpretation, serving as a kind of alternate-universe equivalent rather than a continuation of Dio’s lineage.
While they share a surname and some personality traits, Diego Brando’s background is entirely different from Dio Brando’s. Diego is portrayed as a talented British jockey who rises from a difficult childhood marked by poverty and hardship.
His ambition, intelligence, and ruthlessness mirror Dio’s defining characteristics, but these traits arise from a separate life history rather than inherited family influence.
In contrast, Dio’s origins are tied to his abusive upbringing under Dario Brando in the original universe, which shapes his motivations and worldview.
The connection between the two characters is best understood as symbolic. Diego represents a “what if” variation of the archetype that Dio embodies: an ambitious, self-centered individual driven by a desire for power and recognition.
However, Diego’s story unfolds in a different environment with different stakes, relationships, and outcomes. This allows the narrative to explore similar character themes without directly continuing Dio’s storyline.
Another important distinction is their role in their respective plots. Dio Brando is one of the central antagonists of the entire early series, with a long-lasting influence that spans multiple parts.
Diego Brando, while still an antagonist in Steel Ball Run, functions more as a rival and secondary antagonist rather than the overarching villain of the story. His alliances and motivations shift throughout the race, reflecting a more complex and situational character arc.
In summary, Diego Brando and Dio Brando are not related by family, blood, or canon lineage. They are parallel counterparts across different universes within the JoJo’s Bizarre Adventure multiverse.
Their similarities in name, appearance, and personality are deliberate creative choices meant to draw thematic parallels rather than indicate any direct relationship.
