Minor Characters in Spin-Offs

Hisao (久央, Hisaō) is a horse and Yohei (洋平, Yōhei) is a cat seemingly belonging to the Joestar Family in the 37th universe. They do not actually appear in the novel and are only depicted in a family photo in the novel's illustrations.

Jonda Joestar (ジョンダ・ジョースター, Jonda Jōsutā) is the son of Joseph Joestar and the adoptive father of Jorge Joestar in the 37th iteration of the universe.

Jorge describes Jonda's name as a particularly misguided attempt at picking a name that sounds Japanese. Jonda would hear all the stories of the detective cases Jorge went on.

In 2014, Jonda marries Penelope de la Rosa after she decides to stay in Nishi Akatsuki. They have a daughter in 2015 named Joeko Joestar.

Serika Kato (加藤 聖理河(せりか), Katō Serika) is a woman living in Nishi Akatsuki with her husband Satoshi Kato (加藤 智(さとし), Katō Satoshi) and their four-year-old son Seshiru Kato (加藤 聖思流(せしる), Katō Seshiru). Serika's parents recently died so she had been in town to deal with their abandoned farmhouse.

Jorge Joestar rides his bike to the outskirts of Takefu, Fukui, and finds their house burning. Her family was eating dinner in their home when suddenly water started pouring down the stairs. They rushed out of the house and then the house started burning. Seshiru points out that a random stranger, later revealed to be Tsukumojuku Kato, was swimming in the pool of water inside. Their house was filled with sea water, and there were jets of it spitting out of every crack. The water was moving through the house at whirlpool speeds, and Satoshi had shut the front door to protect his family from the current and the furniture hurtling along in it.

Masami Shirai (白(しら)碑(い) 将(まさ)美(み), Shirai Masami) is a police inspector working at the Fukui Police Department in the 37th iteration of the universe. After hearing about Javier Cortes's ability from the first universe, Jorge Joestar calls Shirai to interrogate the killers in the fifteen locked room murders about any dreams they had, using hypnosis if necessary. Shirai says Jorge always has weird ideas, but Jorge knows he will do it anyways.

Shirai later calls Jorge back and says all of the criminals were shocked when he brought up dreams to them. They had forgotten about their dreams until it was brought up to them, but all of their dreams had a man with a hat pulled down over his eyes. They knew the man's name was Yoshikage Kira and he left them with a message to tell the police officers in case they ever got arrested: "If Jorge Joestar ever comes to Morioh, I'll kill him".

Edvard Noriega (エドヴァルド・ノリエガ, Edovarudo Noriega) is the former boyfriend of Penelope de la Rosa, although he never bothered breaking up with her. He is a thug who would beat up Penelope, treat her like his property, and sell anything she owned of value. Penelope's mother, Isabella, attempts to convince Penelope to break up with him but Edvard turns the two against each other by threatening to ruin Penelope permanently if Isabella interferes. After the case with Javier Cortes, Edvard leaves her without saying goodbye. Penelope would wait for him to come back but eventually realizes her mother is the only one she can trust and starts hating Edvard.

Edvard later shows up in front of Penelope and George Joestar on their way to Penelope's workplace. He says he just wanted to see how Penelope was doing, although she replies saying she never wants to see him again and not to expect any money from her. Edvard panickingly mentions about how he had seen something strange. His desperate and terrified demeanor confuses George, as he appeared nothing like the "alpha male" he was when George and Tsukumojuku had spoke to him before. Penelope assumes he's acting and tells him to shut up, but Edvard continues describing the mysterious Moth Man with wings he saw one night while he was in bed with his new girlfriend, Prunella. He worries that the Moth Man would do something awful to him. Edvard also mentions that he doesn't love Prunella as much as he loved Penelope.

Penelope goes berserk from her emotions and summons a locked room surrounding Edvard with her Wound's ability. However, Edvard continues mumbling about the Moth Man, deep in thought. He ends up being strangled with a noose from Penelope's clown within the locked room and almost dies until George saves him. Edvard is unconscious afterwards but still alive.

Denta Shishimaru (獅子(しし)丸(まる) 電(でん)太(た), Shishimaru Denta) is the mayor of Morioh in the 37th universe. Shishimaru is a tall man wearing a suit. His council makes an announcement for all Morioh citizens to gather at Budogaoka High School's gymnasium for an emergency meeting. During this time, the American president Funny Valentine gives a message to Jorge and the others to tell the mayor that if nothing changes, the American army will flip the island.

Due to mass hysteria caused by the Moth Man, Morioh's citizens are locked in the school gym and attempt to kill themselves by pouring gasoline on each other. Shishimaru pours gasoline on his secretary Chien Kunimido, who does the same to Shishimaru as well. Koji Hirose saves them by breaking down the front wall of the gymnasium and letting light shine in, causing everyone to return to their senses.

Shishimaru thanks Koji and the others for saving them and calls the fire department. He also wonders how they were all able to fly there but Jorge denies it, thinking that talking to Shishimaru is like having hot air blown in your face. Jorge decides not to tell Shishimaru about Funny Valentine's message because it wasn't the time for quibbles. Shishimaru scowls when seeing his election rival, Takumi Kumoi, is also there. Jorge and the others fly away on Grand Blue and Shishimaru chases after them, shocked that they can fly after all.

Later, Passione takes Shishimaru hostage and uses him to relay orders from the mafia. Shishimaru had put himself on the line to protect his residents and Jorge mentions his head is swollen in weird places as a result.

Faraday (ファラデイ, Faradei) is the butler of the Motorize family and often serves George Joestar tea whenever he visits, which George considers delicious.

Before George leaves their home one day, Faraday mentions that a young friend of George had come over looking for him. Faraday leads George to another room and then takes his leave. Faraday later testifies in George's trial about where George was on the day of Kenton's murder.

Two years later in 1907, George asks Faraday about the boy who came looking for him. Faraday reveals he saw a Spaniard boy with no eyes who he thought was terrifying, rather than Tsukumojuku Kato who George saw. When Faraday learned about George suddenly being in Rome after that, he assumed that devil had done something to George but was too afraid to tell anyone.

In 1920, George visits the Motorize home on the day of his wedding, wondering why Steven is late. Faraday doesn't answer the door like he usually does. He was presumably killed by Antonio Torres and turned into a zombie like the rest of the family.

Daibakusho Curry (大爆(だいばく)笑(しょう)カレー, Daibakushō Karē) and Runbaba 12 (ルンババ12) are detectives from Nishi Akatsuki. They are summoned by Passione along with Jorge Joestar to head to the Budogaoka Academy garden in Morioh.

Jorge describes them as good looking men who look like they had been through a lot. They know Italian and are able to communicate with Bruno Bucciarati. Bucciarati assigns Leone Abbacchio to partner with Daibakusho. As Daibakusho is not that tall, Abbacchio looms over him. Guido Mista partners with Runbaba 12. Mista apparently smelled a bit since Runbaba 12 sniffed once, makes a face, and then keeps his distance.

Daibakusho takes the filthy rubber ball and Runbaba 12 takes the lone shoe for communication purposes, as they were objects that were turned into phones by Vinegar Doppio's Stand. Runbaba 12 tries to convince Daibakusho and Jorge to trade with him since he doesn't want to carry a shoe around, but Bucciarati angrily screams for him to stop.

Frank Dimarest (フランク・ディマレスト, Furanku Dimaresuto) is the navigator of George Joestar for the first two weeks after George joins the Royal Naval Air Service. Frank frequently mutters "It's your fault I'm out here risking my life" over George's shoulder the whole time they fly. George eventually has enough of it and punches Frank when they land. He then fires Frank, but Frank seems grateful for it.

Jodoh Joestar (ジョドー・ジョースター, Jodō Jōsutā) was the son of Jonathan Joestar and the father of Joseph Joestar in the 37th iteration of the universe. Joseph did not get along with him, as they were exact opposites. He was apparently a gloomy man of few words and it was difficult to tell what he was thinking.

Joeko Joestar (ジョエコ・ジョースター, Joeko Jōsutā) is the daughter of Jonda Joestar and Penelope de la Rosa, born in 2015 in the 37th iteration of the universe. She is the little sister of Jorge Joestar.