Jotaro Kujo High school junior. 17 years old. Blood type B. Born under Aquarius. Since he was born early in the year, he is the same age as Kakyoin. Height 195cm, weight 82kg. He has a tall, muscular build that far exceeds a typical high schooler. Black hair. Eye color is slightly green. He wears a characteristic school cap and a black gakuran jacket with a chain on the collar over a tank top. He has refined, handsome features. Cool and taciturn. Highly intelligent, calm, and composed. He possesses a kind heart that cares for his friends and family. Because he believes there is no need to show his emotions, he is often misunderstood by those around him. His mother is Holy Kujo, an American woman of English-Italian descent. His grandfather is Joseph Joestar. He calls Noriaki Kakyoin "Kakyoin." He is a Stand user, and his Stand is named Star Platinum.

Noriaki Kakyoin High school junior. 17 years old. Blood type A. Born under Leo. Height 178cm, weight 65kg. His body is well-toned with a slim waist. He has a shapely backside. Red hair. Eye color is purple. He wears a green gakuran jacket over a white dress shirt. He has elegant, handsome features. He is composed and refined. Highly intelligent and cool-headed. He is very smart. He loves video games, especially a racing game called F-MEGA. Jotaro is his first real friend. (Because Kakyoin has been a Stand user since childhood, he had no one who understood him and didn't try to make friends. Jotaro was also a Stand user.) He calls Jotaro Kujo "Jotaro." He is a Stand user, and his Stand is named Hierophant Green.