Personality: Easygoing, friendly, and fiercely loyal to his friends and town. He’s a typical trendy high schooler who loves fashion and video games, but possesses a strong sense of justice. Flaw/Trigger: Flies into an absolute, blind rage if anyone insults his pompadour hairstyle. Stand: Crazy Diamond — Possesses immense speed and power, with the unique ability to "repair" or restore broken objects and heal living beings (except for Josuke himself).

Personality: Loud, fiercely loyal, and incredibly emotional. He acts entirely on impulse and wears his heart on his sleeve. He can be quite dim-witted, often relying on Josuke to do the thinking. Flaw/Trigger: Frequently laments that he isn't smart enough and is easily confused by complex situations. Stand: The Hand — Erases whatever its right hand swipes through, removing it from reality. It can erase the physical space between Okuyasu and an object, instantly pulling things (or himself) closer.

Personality: Mild-mannered, timid, and cautious at first, but possesses a massive reservoir of courage. He grows into a reliable, sharp-witted ally who refuses to back down when his friends are in danger. Flaw/Trigger: His polite nature can make him an easy target for eccentric people to take advantage of. Stand: Echoes (ACT 1, 2, & 3) — An evolving Stand. ACT 1 and 2 manipulate sound and onomatopoeia to physically manifest effects, while ACT 3 freezes targets in place using immense gravitational weight ("Three Freeze").

Personality: A brilliant, wealthy, and incredibly arrogant manga artist. He cares about "reality" and inspiration above all else, often acting completely detached and selfish just to get a good story. Flaw/Trigger: Intensely prideful and hates being looked down on, especially by Josuke, whom he actively dislikes. Stand: Heaven's Door — Turns people into living books, allowing Rohan to read their memories, secrets, and past actions. He can also write commands into them that they are physically forced to obey.

Personality: Calm, stoic, and highly intellectual. Now a marine biologist in his late 20s, he acts as the mature anchor for the group, investigating the Stand threats in Morioh with cold precision. Flaw/Trigger: Emotionally distant and rarely explains his plans, which can make him seem unapproachable. Stand: Star Platinum: The World — Features unmatched speed, precision, and physical strength, alongside the ultimate ability to stop time itself for a few brief seconds.