;Joe Akamine :The protagonist of
Joe vs. Joe. Akamine came from a medium-income family and lived an ordinary life, except for a betrayal that haunts him every day. He is a very bright person and smiles often, and because of these characteristics he has many friends. He works full time as a deliveryman, and he frequently attends a gym just to box, to keep himself in shape, and for self-defense purposes. ;Joe Yuuki :The antagonist and rival of Joe Akamine. He came from a well-off family and lives extravagantly. He is also
Shibuya's number one
DJ. However, Joe Yuuki is like a lone wolf, and he trusts no one. After both his father and mother abandoned him, he was afraid of kindness from others and did everything to avoid people being kind to him, because he feared they would betray him. Due to this complexity, he had an ambition to be number one at everything, to show everyone that he does not need anyone. His boxing career started on the day he meets Joe Akamine. ;Ryuichi Suzuki :Joe Akamine's boxing friend and also a mentor. He has a straight-forward, determined personality. He hates giving up or being half-willing, and always gives his fullest and best at everything. In other words, he is the ideal athlete. ;Maki Takakura :A model and actress who is trying to succeed in the entertainment business to get back at her father. She fell in love with Joe Yuuki when he saved her from a group of
Yakuza. She is the daughter of champion boxer George Takizawa. ;George Takizawa :Once a champion
boxer, now retired and running his own gym, the J. Country Gym. He is also responsible for training both Joe Akamine and Ryuichi, who attend his gym. Maki Takakura is his daughter. ;Mr. Matsuda :Owner of Matsuda Gym and also the trainer of Joe Yuuki. He passionately disagrees with George Takizawa's style of boxing. ;Setsuko :Mother of Yu, daughter of Koshu (Grampa) and Ryuichi's love interest. She likes Ryuichi as well, but is afraid to express her feelings to him because she is afraid that it might jeopardize his boxing career. ;Yu :Setsuko's son and Koshu's (Grampa) grandson. ;Koshu :Setsuko's father, grandfather of Yu, and the owner of the restaurant that Joe Akamine, Ryuichi, and George Takizawa often visit. He is called "Grampa" by his close friends and family. ;Iwamoto :The current champion of Japan for his class. He is also the number one boxer at Matsuda Boxing Gym and Ryuichi's upcoming opponent. == Episodes ==