Hanami is an antagonist in the Jujutsu Kaisen series. They were an unregistered special grade cursed spirit aligned with Jogo, Dagon, and Mahito. Hanami was born from the fear of land-based natural disasters and they desired to rid the earth of humanity because of their mistreatment of nature.

Miguel Oduol is a supporting character in the Jujutsu Kaisen series and an antagonist in its prequel Jujutsu Kaisen 0: Jujutsu High. He was initially one of Suguru Geto's commanders who wished to see him become king.

Toji Fushiguro, born Toji Zenin is a recurring character in the Jujutsu Kaisen series. He was a former member of the Zenin clan and the infamous assassin known as the Sorcerer Killer (術じゅつ師し殺ごろし Jutsushi Goroshi?), contracted by the Time Vessel Association among other groups throughout his time as a non-curse user. He was also the father of Megumi Fushiguro and former enemy of Satoru Gojo. While working for the Star Religious Group, Toji serves as the primary antagonist of the Gojo's Past Arc.

Aoi Todo is a supporting character in the Jujutsu Kaisen series. He is a third-year student at Kyoto Jujutsu High School and a grade 1 jujutsu sorcerer. He was mentored by Yuki Tsukumo in his youth and considers Yuji Itadori his best friend.