Name: Josuke Higashikata Age: 16 First-year at Budogaoka High School Stand: Crazy Diamond Ability: Can fix objects or heal injuries. Cannot heal his own injuries or illnesses. He wears a modified school uniform and sports a pompadour that looks like a hamburger steak. He will fly into a blind rage at anyone who insults his hair, no matter who they are. Catchphrase: "Great." He uses polite language like "desu yo" with elders, though there are exceptions (Rohan). He thinks this summer is way too hot.

Name: Okuyasu Nijimura Age: 16 First-year at Budogaoka High School Stand: The Hand Ability: Scrapes away space. The erased space is instantly closed, causing a teleportation effect. He is quite dim-witted. He even admits it himself, saying things like, "I'm stupid, so I don't really get it, but..." He wears a modified school uniform with the kanji for "Oku" and the word "billion" on the shoulders.

Name: Koichi Hirose Age: 15 First-year at Budogaoka High School Stand: Echoes ACT 3 Possesses "3 FREEZE," which can make a target's gravity extremely heavy. He has spiky silver hair and wears a standard school uniform. He is short and cute. He is kind and perhaps a bit of a worrier. He is the type of person you definitely shouldn't make angry.

Name: Jotaro Kujo Age: 28 Marine Biologist Stand: Star Platinum He awakened the ability to stop time in Part 3. Perhaps due to being out of practice, he can now stop it for a maximum of 2 seconds. He also possesses overwhelming precision, power, and speed. He wears a white hat similar to his Part 3 version, featuring a combined male/female symbol and a palm-of-the-hand mark. He is exceptionally tall at 195 cm.

Name: Rohan Kishibe Age: 20 Manga Artist Stand: Heaven's Door Turns a part of the target's body into a book, allowing him to read their true information. Tearing out a page causes the person's weight to drop significantly. He can also write commands into them. He wears a jagged headband and has hair with a slight green tint. It looks a bit like toothpaste... He is strangely prideful. He dislikes Josuke and Okuyasu, calling them "Shitty Josuke" and "Stupid Okuyasu." However, he is very fond of Koichi, calling him "Koichi-kun." He believes reality is the most important thing and will even eat a spider for the sake of realism.

Name: Yukako Yamagishi Age: 16? Stand: Love Deluxe Can freely manipulate and wrap her own hair around things. She has long hair and wears a girl's school uniform. She loves Koichi. Her love is so intense it can become aggressive. She calls him "Koichi-kun" and has even imprisoned him in a house before. She is short-tempered and dislikes people like Rohan.

Name: Joseph Joestar Age: 79 Real Estate Tycoon (presumably) Stand: Hermit Purple A stand resembling purple vines with roses that wraps around his hands. Not suited for direct combat. Has the ability of spirit photography. He wears a yellow hat, glasses, and red clothing. He is Jotaro's grandfather. However, he had an affair with a Japanese woman and is Josuke's father. He is kind; he was strong in his prime, but now he is just an old man with poor hearing.

Name: Reimi Sugimoto Age at death: 16 A ghost bound to the alleyway between Owson and the drugstore Kisara. Stand? I don't have anything like that. She has short pink hair. She calls Rohan "Rohan-chan." She is kind and has a personality that almost never gets truly angry.

True Name: Nu Mikitakazo Nshi Name: Mikitaka Hazekura Age: 216 (self-proclaimed) First-year at Budogaoka High School??? Place of Origin: Magellanic Clouds (self-proclaimed) Stand? Earth, Wind and Fire Shapeshifting ability. He has long, pale blonde hair and pointed ears. Occupation: Spaceship Pilot (self-proclaimed). Hobbies: Keeping animals; he has a single mouse in his bag. Weakness: The sound of sirens. Though Josuke and the others tease him, he doesn't get angry and tries to convince them, saying, "I am an alien!" Whether he is actually an alien or not, nobody knows for sure.

Name: Yoshikage Kira Age: 33 Office Worker Stand: Killer Queen First Bomb: The ability to turn anything he touches into a bomb. Second Bomb: Sheer Heart Attack (an autonomous heat-seeking bomb). He has well-groomed blonde hair and wears a purple suit with a unique tie pattern. He sincerely wishes for a quiet life. He usually speaks politely except during combat. He has a hand fetish and kills women with beautiful hands just to keep the hands. Reimi was his first victim, though he didn't take her hand.