Winona (ウィノナ,Uinona) is a colleague and friend of Coniglio working as an apprentice chambermaid at the hotel where Coniglio works. She is a second-year university student on an exchange program and was presumably hired because of her father's connections with the owners and managers of the hotel. Winona likes to talk about French and Italian literature. Winona is killed when Pannacotta Fugo unleashes the power of Purple Haze at the hotel.
Leonni (レオーニ,Reōni) is a colleague of Coniglio. He works in the kitchens of the hotel. He tries to ask Coniglio to go out on a date with him, but the circumstances of the story force her to politely refuse.
Clara Capezzuto (クララ・カペッツート,Kurara Kapettsūto) is the sister of Sheila E. Prior to the beginning of the story, she was Sheila E's only living relative who took care of her until she was killed by the assassin Illuso. Sheila E's vendetta towards Illuso led to her joining Passione and allying with La Squadra Esecuzioni in order to take revenge on him herself, although Pannacotta Fugo's Purple Haze ultimately stole the kill later on.
Julio Gonzales (フリオ・ゴンザレス,Furio Gonzaresu) is an eleven year old boy who lives in La Palma and is considered the "first mate" of Antonio Torres's gang of friends who bully George Joestar for several years. One day, Lisa Lisa kicks him after he bullied George which causes Julio's entire left side to tremble for hours.
Julio runs straight to George's house one morning after hearing about Antonio's death and sees George isn't there. He believes Lisa Lisa must have helped George with murdering Antonio, and tells their mother Erina that it must have been those two since they were both missing from their rooms. In school, he accuses George and tells him to provide proof that he isn't the culprit. His teacher, Mr. Fernandes, tells Julio that he and his friends should be ashamed for bullying George. Julio grits his teeth but continues accusing Lisa Lisa since she was missing, believing she used her weird power to kill Antonio.
When Julio's classmate, Tsukumojuku Kato, declares that he solved the case already, Julio says it's impossible because they just found Antonio's corpse less than an hour prior. He then freaks out after Tsukumojuku reveals Antonio's corpse in the classroom. Although George and his other classmates stay home from school after shock from the incident regarding Antonio, Julio still goes to school every day. He takes over Antonio's role as leader of the gang of bullies but decides not to persecute George any more.
He is shocked to see Lisa Lisa after she reveals herself hiding inside Antonio's corpse. Mr. Fernandes goes out to the dimly lit hall to take care of the incident, but is suddenly killed by Antonio's father, Alejandro Torres.
Alejandro was a vampire and turned Mr. Fernandes into a zombie. As a zombie, he is forced to close all the curtains in the hallway for Alejandro, until his entire body crumbles from the sunlight.
Maria Torres (マリア・トーレス,Maria Tōresu) is the mother of Antonio Torres and wife of Alejandro Torres. Her real name was Maria Hightower (マリア・ハイタワー,Maria Haitawā) when her and her family lived in England. Maria is a dangerous and obsessive woman who tortures her son. Tsukumojuku Kato describes Maria's love for her son as hardly natural.
Every year on June 16th since Antonio was a baby, Maria peels off his skin bit by bit while leaving his blood, bones, and flesh intact. She then carefully places the pieces together, treats them with a thin-coating of oil to prevent them from drying out, seals them with medical adhesive, and sews the pieces together with very fine thread. Antonio's hair that was shed from prior months would be placed on top of the head of her creation to complete the full body work of art, which she called "This Year's Antonio".
She adapts her technique over time, while Antonio's body adapts to survive the pain. Rather than taking photographs of her child like a normal person, Maria obsessed over the texture of Antonio's skin, and wanted to preserve it each year. Before the police takes her away after they discover Antonio's corpse, Maria rubs her cheek against the final "This Year's Antonio" she created, desperate to savor her last moments with her art.
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.
Serika Kato (加藤聖理河,Katō Serika) is a woman living in Nishi Akatsuki with her husband Satoshi Kato (加藤智,Katō Satoshi) and their four-year-old son Seshiru Kato (加藤聖思流,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.
Jorge asks if Tsukumojuku is related to them but they do not reply, shocked from their recently built house burning. Their family stays the night at a hotel, with Serika reeling from the shock of everything.
Serika and Seshiru appear in Ōtarō Maijō's previous novel, Tsukumojuku. However, they are twins in that novel rather than mother and son. Satoshi appears as a background character in another novel of Maijo's, Smoke, Soil or Sacrifices.
Masami Shirai (白碑将美,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".
Shirai warns Jorge to stay away from Morioh at all costs because of the danger, but it only makes Jorge more interested to go there.
Shirai appears as a major supporting character in Ōtarō Maijō's previous novel, Smoke, Soil or Sacrifices. He is a public prosecutor in that novel.
Leonora Cortes (レオノーラ・コルテス,Reonōra Korutesu) is the mother of Javier Cortes and wife of Juan Rovira Cortes. Juan was a philanderer who was absent from home for long periods of time and would often make Leonora cry.
Eventually she stops crying when she realizes she has Javier. Tsukumojuku Kato assumes that she was molesting and abusing her son for over ten years, forcing him to sleep in a locked room with her.
Before her husband returns home, Leonora kills herself after the Spanish police kill her son.
Juan Rovira Cortes (レオノーラ・コルテス,Fuan Robira Korutesu) is a seaman. He is the husband of Leonora Cortes and the father of Javier Cortes. Juan is a philanderer who was absent from home for long periods of time and would often make Leonora cry when Javier was young. Juan assumed Leonora had gotten over it since he had seen Javier comfort her when she cried. He noticed his wife doted on their son but thought nothing of it and was pleased since it meant there was less strife for him.
Isabella (イザベラ,Izabera) is the mother of Penelope de la Rosa. She had divorced with her husband in 1900 and had full custody of Penelope. Penelope blames her for taking away her father and they have a strained relationship. When Penelope starts dating a thug named Edvard Noriega, Isabella tries to convince her daughter to break up with him. Edvard manipulates the two into being against each other and threatens to ruin Penelope permanently if Isabella interferes, so Isabella ends up giving up on her daughter.
Javier Cortes starts appearing in Penelope's dreams disguised as a clown and attempts to make Penelope kill her mother. Penelope would resist it but develops a Wound ability that activates after Javier's death. Penelope's Wound causes Isabella to be locked inside her kitchen one day with a clown standing in the corner. Isabella hysterically hides behind a sofa. Penelope manages to break the door open after several repeated tries and saves Isabella, making the clown disappear. Penelope realizes the only one she can talk to and trust is Isabella. However, Isabella blames Penelope for everything and is convinced that Penelope hates her and wants to kill her.
George tries to explain the situation to Isabella and demonstrates how Penelope's ability works, but Isabella remains terrified and convinced that Penelope was possessed by the devil.
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.
Edvard being trapped within Penelope's locked room
Prunella (プルネラ,Purunera) is a girl that Edvard Noriega starts dating after his relationship with Penelope de la Rosa, despite him never actually breaking up with the latter. They see the Moth Man appear at the base of their bed one night, who tells them to close their eyes, lie down, and think about the next day. Edvard later mentions to Penelope that he doesn't love Prunella as much as he loved Penelope.
The Namahage Detective (なまはげ探偵,Namahage tantei) is a famous detective in the Tohoku region of Japan in the 37th universe. His name derives from the oni mask he wears. He handles most of the detective cases in the northeast, so Jorge had never been called to solve a case at Morioh.
Takumi Kumoi (雲井巧実,Kumoi Takumi) is a politician aiming for votes in Morioh's mayoral election in the 37th universe. He is nicknamed Kumotaku (クモタク) and is the son of the chief of staff in Morioh. His father is described as a tall man with very thin arms and legs. Takumi's election campaign calls him Morioh's son and the star of the north. Denta Shishimaru, the current mayor of Morioh, is wary of him as they are election rivals.
Sachiari Hakkyoku (八極幸有,Hakkyoku Sachiari) is a detective from Tokyo in the 37th universe. Hakkyoku's corpse is found at Boing-Boing Cape, seated on a giant stuffed sea turtle. Hakkyoku had died of alcohol poisoning; a large quantity of sake had been injected into his bloodstream. His death was made to look like the Japanese folktale Urashima Tarō, where the protagonist rides a turtle in modern depictions. It is later revealed that he was killed by Antonio Torres.
Sachiari Hakkyoku appears in Ōtarō Maijō's previous novel, Disco Detective Wednesday.
Nekoneko Nyan Nyan Nyan (猫猫にゃんにゃんにゃん) is a detective from Tokyo in the 37th universe. Nekoneko's corpse is found in town near Angelo Stone, surrounded by stuffed dogs, cats, and pheasants. She had suffocated from a massive quantity of dumplings forced down her throat. Her death was made to reference the Japanese folktale Momotarō, where the protagonist befriends a talking dog, monkey, and pheasant in exchange for dumplings. It is later revealed that she was killed by Antonio Torres.
Nekoneko Nyan Nyan Nyan appears in Ōtarō Maijō's previous novels, Tsukumojuku and Disco Detective Wednesday.
Chomaru Bariya (巴里谷超丸,Bariya Chomaru), Dezumi Style (出逗海スタイル,Dezūmi Sutairu), Bobohiko Yuagari (湯上保々彦,Yuagari Bobohiko), Kenraku Chokuji (蝶空寺快楽,Chokuji Kenraku), Kiyu Chokuji (蝶空寺嬉遊,Chokuji Kiyu), Judy Dollhouse (ジュディ・ドールハウス), Gen Mame (豆源,Mame Gen), Nils Mikami (美神二瑠主,Mikami Nils), Buramai 0 (十一〇), Nao Tsukishimoni (月霜二七雄,Tsukishimoni Nao), Hidzuki (日月), Kakiuchi Mama Jump (垣内万々ジャンプ), and Sayataro Fuyuname (冬舐鞘太郎,Fuyuname Sayataro) are a group of thirteen detectives in the 37th universe. All of them have investigated and solved a number of cases, whether police or civil. They are also all in contact with each other.
Bariya is a blond man who is both a detective and an Italian chef. Jorge Joestar had seen him on TV several times. Bariya recruits the other detectives on short notice to hold an emergency press conference regarding the mysterious murders of the three detectives in Morioh, Sachiari Hakkyoku, Nekoneko Nyan Nyan Nyan, and Tsukumojuku Kato. He is the speaker in the press conference and declares the murders as an act of terrorism against the detective profession. He also offers prayers to the citizens of Morioh because the town had mysteriously detached from the country and become its own island.
Bariya addresses that they know Yoshikage Kira isn't the murderer and they will not go after him at this time. The real killer was framing Kira by using his name. Bariya asks for Kira's assistance in providing any information to solve this case so that Kira can demonstrate that he is cooperative. Bariya assumes that Kira's power must have developed to detach Morioh from Japan and was trying to ease Kira's fears by assuring him that all of the detectives were not going after him, in hopes of getting Morioh to stop moving further away.
Many of these detectives are characters in Ōtarō Maijō's previous novel, Disco Detective Wednesday.
Denta Shishimaru (獅子丸電太,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.
Shishimaru's head swollen after being caught by Passione
Chien Kunimido (国見堂智円,Kunimido Chien) is the secretary of Morioh's mayor, Denta Shishimaru, in the 37th universe. He is a thin, plain-looking man with glasses.
Jorge describes secretaries of the mayor as individuals who put themselves on the line for politicians and would answer all questions for them, but Kunimido was nowhere to be found after the Nero Nero Island invasion.
Graham Pendleton (グレアム・ペンドルトン,Gureamu Pendoruton) is the father of Erina Pendleton and grandfather of George Joestar. Graham founded a hospital in the city of London, England. Although he's retired and the hospital is now run by other managers, he and Erina own the controlling interest in its stock. Erina stays in contact with him during her whole time on the Canary Islands.
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 (大爆笑カレー,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.
Jorge later tells Bucciarati to have Daibakusho and Runbaba 12 investigate what happened to Denta Shishimaru's secretary, Chien Kunimido. The two are quickly able to find Chien at his house, learning that he is actually Yoshikage Kira.
Daibakusho Curry appears in Ōtarō Maijō's previous novel, Tsukumojuku. His real name in that novel is Tsutomu Kato or Tsutomu Suzuki. Runbaba appears in Ōtarō Maijō's previous novel, The World is Made out of Closed Rooms. His real name in that novel is Banba Junjiro.
Charles Stewart Rolls (チャールズ・スチュアート・ロールズ,Chāruzu Suchuāto Rōruzu) owns an automative company where John Moore-Brabazon works for him as his private mechanic. In 1906, Charles produces the Silver Ghost car, which could drive 80 km/hr without any noise.
Charles and John are both all about adventure. Charles decides his company would start making airplane engines, and John is excited to take part as well.
In 1910, Charles dies in an airplane crash and John decides to never fly again.
Harriet Motorize (ハリエット・モーターライズ,Harietto Mōtāraizu) is the wife of Ben Motorize and the mother of Steven, Kenton, and Darlington. Harriet commits suicide by throwing herself off of some cliffs. Her death causes Steven to awaken his Wound ability, which grows wings out of his back.
Wilhelm Wolff Beer (ヴィルヘルム・ヴォルフ・ベーア) and Johann Heinrich Mädler (ヨハン・ハインリッヒ・メドラー) made the first maps of Mars, and they selected a small circle as a base point for the prime meridian. That point is still in use today, under the name Airy-0. At that point is where Kars stands, holding the tether to The Eyed Balloon.
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.
Peter Fraser (ピーター・フレイザー,Pītā Fureizā) is the navigator of Jim Graham. Jim's plane, Simone, breaks in half from the attacks of a German Albatros fighter plane and Peter falls along with the rear seat and the tail. George notices that Peter attempts to stand on his seat in order to jump to George's plane but George has no choice but to fly away from Peter to avoid the remains of Simone's wings falling on him. They both knew George wouldn't make it in time even if he attempts to come back for him. George apologizes to Jim for Peter's death but Jim replies saying no one would have been able to save him.
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.
Vincent Lecoeur (ヴァンサン・ルクール,Vuansan Rukūru) is a French soldier who owns a Nieuport 17 plane with a picture of a dog painted on its belly. The Nieuport had a max speed of 177 kph but he'd make it go 200. He seems to have been an acquaintance of George Joestar.
He is killed by Antonio Torres and turns into a zombie. Even as a zombie, his thirst for speed is unabated and he shoots past George's plane like a bolt of lightning. George doesn't chase him but Vincent later flies toward George again and crashes directly into George's wing, splitting it down the middle.
Steven Motorize flies onto Vincent's plane and then throws him out of the cockpit. Steven then occupies the empty cockpit and fires its machine guns at Vincent and other enemy planes.
Fuyuko Nakagawa (中川冬子,Nagakawa Fuyuko) is a character from Cool Shock B.T.'s pilot. She is an upperclasswoman B.T. has a crush on. One day, she's accused of murdering a reporter. Even though he supposedly tried to rape her and she defended herself, the penal system considers that she used excessive force. However, B.T. proves that she's innocent of the murder. But then, Koichi finds that the reporter had been blackmailing Fuyuko because he knew she was shoplifting. Thus, Koichi suspects that Fuyuko may have really tried to kill the reporter.
Two bullies at Koichi and B.T.'s summer camp. They torment the little kids by telling them their family has died in their absence, beat up whoever stand up to them, and are indisciplined during class. However, they get away with it because the camp staff doesn't want a scandal. Kuroyama and Akagawa aren't actually friends and Akagawa is also victimized by Kuroyama. B.T. exploits this wedge in their relationship to have Akagawa stab Kuroyama.
Ninomori is B.T.'s upperclassman and a member of the kendo club, like Date. He is jealous and hates Date because the latter keeps beating him, so he accepts to participate in a con and fake his death so that B.T. can blackmail Date. However, he bumps his head into a rock and faints, and makes everyone believe that he's truly died. However, he eventually wakes up, with only a slight trauma to the brain.
B.T.'s upperclassman. Seemingly the perfect man, with good grades, musical talent, good looks, humor, the best member of the kendo club, class president, and heir of a wealthy family. B.T. is jealous of him because he's flirting with Aiko. Date reveals his true colors when Ninomori fakes his death, causing him to accuse B.T. of murder so that he can keep his perfect record.
A pretty upperclasswoman whom B.T. has a crush on. Date flirts with her, causing a great deal of jealousy from B.T.'s part. When Date is caught falsely accusing B.T. of murder, she rejects Date as she thinks he's pathetic.
A violent and sadistic security guard working at a museum. He catches Koichi sneaking into a storage room. Later that night, he pursues B.T. and Koichi as they try to steal a dinosaur's head, fully intent on beating them with his iron chain. However, B.T. intimidates him by making him believe that a chemical reaction will cover his body in acid.
Koichi Mugikari's parents. The freckled easily fools them and invites himself into their home after he's seemingly bumped, but the father is too afraid to call the police because he fears he'll be arrested. When the rest of the boy's family invades their home, they are completely helpless.
22nd Man (第22の男,Dai 22 no Otoko) is an assassin sent by the Dress Organization to assassinate Ikuro Hashizawa. He only uses a knife and manages to wound Ikuro, but as soon as the boy turns into Baoh, 22nd Man is swiftly killed. Baoh grabs and melts his head with a corrosive liquid emitted from his palms.
Martin (マーチン,Maachin) is a mutated mandrill whose master sics on Ikuro Hashizawa. Martin descends from ordinary mandrills, a type of baboon living in the West of Africa. His body has been extensively modified, first on a genetic level due to Dr. Kasuminome's experiments on his parents, and then on a more mundane level by his master. Martin is exceptionally big and strong for a mandrill and has a deadly set of teeth. Martin has spikes hidden in his fur and stomach and can throw them at its targets. A tank of poison gas is hidden in his stomach and can kill or weaken enemies when as the gas is discreetly released. He also has a harpoon gun hidden in his mouth. Martin is a sadistic beast who enjoys killing, but Baoh punches through it's throat, killing him.
Rokusuke (六助,Rokusuke) is an old man living in the mountains with his wife. He shelters Ikuro Hashizawa and Sumire, but is brainwashed by Dordo into trying to shoot Ikuro the next night. Ikuro survives and Rokusuke is freed from Dordo's hypnosis. He then assists Ikuro and later adopts Sumire.
Aya (綾) is a young pretty girl. When she meets Ikuro Hashizawa, she is charmed by his good looks. She gets stuck on a train track and is almost crushed by a train, but Ikuro saves her. She accompanies Ikuro to the bookstore afterwards but he leaves her.
Shirasawa (白沢) is a young man with a crush on Aya. He tries to woo her and hold her hand as he thinks that she must become his girlfriend if he manages to hold her. However, he's overshadowed by Ikuro's good looks and gets jealous. When Aya gets stuck on train tracks as she struggles to get away from Shirasawa, an approaching train threatens to crush her. Instead of saving her, Shirasawa blames her and flees, too frightened to witness her death.
Cain (ケイン,Kein) & Bloody (ブラッディ,Buraddei) are two field agents working for the Dress organization. When Dordo comes back to Dress, they are the ones holding him still while Walken kills him. When Ikuro Hashizawa attempts to infiltrate the secret laboratory, they come out and confidently fight him. They both attempt to throw a bomb at Ikuro, but he uses the Dark Thunder Phenomenon to destroy the bombs and fry Cain and Bloody alive.
Lauper (ローパー,Roppa) is the crime lord of the fictional city known as Swing Town. She is extremely violent and greedy. Because of her, crime has dramatically increased in town, even the elderly are killed in gang fights, and drugs have poured into schools. She is also vain, bossy and cruel. She once asked a tailor to make her a pretty dress in one night, took offense of the tailor saying he needed to order the materials because it implied she was too big, and killed the tailor. Lauper is also somewhat careful about assassination as she only lets old woman and little girls tend to her. However, Irene Rapona, who accepted a contract on her, killed her. Lauper used a special gum that hardened like steel (which she used as a knife after chewing it) and wielded a chainsaw. Irene made her split herself in two with the chainsaw.
Michael (マイケル,Maikeru) is a mugger from New York who crosses paths with Irene Rapona, who has been left alone after her butler was killed. He tries to mug her and is shocked when she shows no fear. On the other hand, Irene is sickeningly sweet and naive to Michael, who can't bring himself to leave her alone and becomes her protector in the crime-ridden city. He witnesses Irene fight an assassin and Irene leaves after giving him a kiss. Thanks to a winning racing stub Irene has bought, Michael is able to move to L.A. and start a music career. His first song, which is about a mysterious girl, is a hit selling 600,000 albums.
Tony Bormont (トニー・ボウモント,Tonī Boumonto) is a gang leader based in Chicago. He seems to have secretly carried on his criminal activities and has ordered the death of many of his rivals across the country. His body is found in Chicago and it is determined that he stabbed himself in the throat, with no apparent motivation. It is implied Irene had a hand in his death. His status as a crime lord is only discovered after his death.
Clyde (クライド,Kuraido) is a robot and Hiroshi's companion. When Matt and Hiroshi find the second bomb in the engine room, Clyde is the one put in charge of disarming it as his robot constitution will allow him to shrug off the vacuum needed to properly disarm the bomb. He can magnetize himself to attract metallic objects.
Bonnie (ボニー,Bonī) is the Dillinger's automated computer, specifically a new 8000 model, as remarked by Matt. When Matt is playing darts, he yells at Bonnie to lower the temperature as it is too humid in his room. Later, when Matt and Hiroshi are inspecting the second bomb, Hiroshi almost touches it, but Matt stops him and shows him that Bonnie has detected an invisible barrier around it. While disarming the bomb, Bonnie had already analyzed its composition and later moved a camera to allow Hiroshi and Matt to see the leaking pipes in the block with the bomb.
Cameron (キャメロン,Kyameron) is the name of a horse that the outlaw rides on throughout the course of the story. However, a sniper inflicts fatal wounds on Cameron, forcing the outlaw to shoot and mercy-kill the horse.
This Josuke Higashikata (東方 仗助,Higashikata Jōsuke) is visually the same as the original. He is the Stand user of Crazy Diamond. He spots two students who have just ended their friendship. He proclaims that he'll fix the broken friendship with Crazy Diamond. He then pauses and realizes that not even his Crazy Diamond can heal people's hearts and that he had forgotten about this. He also states he forgot that it couldn't bring back the dead either, as both students were killed by Crazy Diamond's punch barrage. He walks away from the scene, expressing that his kindness had worked against him at this moment.
At the end of the comic, a note states that this Josuke Higashikata is not the same character as the one shown in JoJo's Bizarre Adventure and that he will never be seen again.
Hollows (ホロウズ,Horouzu) is a Major League Baseball player and a member of Philadelphia Athletics who also serves as the narrator of the story. He keeps a small file in his glove that leaves scratches on the baseballs, giving them an unusual trajectory when they're thrown.
He plays against Ty Cobb in June 1912. After missing yet another ball, Cobb gets frustrated and calls a time out, during which he starts taunting Hollows. After the time out ends, during a pitch, Hollows throws the baseball at Ty Cobb's stomach. Enraged, Cobb pulls a gun on him, causing a brawl involving all of the players present on the field. This incident convinces Hollows that the rumors of Ty Cobb being possessed by a vengeful ghost are true.
By the time spitballs were banned a year later, Hollows had stopped using them, and his fame as the best pitcher in the league had already faded away.
Dixie Flatline (ディキシー・フラットライン,Dikishī Furattorain) is a legendary hacker that died in 2006. He was the original Stand user of Remote Romance. After he died, his Stand remained on the internet, possessing humans who have access to a particular server and giving them the ability to project an alter ego to a remote location. His occupation and the fate of his Stand are lifted from the character his namesake comes from. In the novel, McCoy Pauley (Dixie Flatline) was a famous hacker who had died, but a saved copy of his mind existed in cyberspace during the story.