| Blood+ is an adapted Japanese anime series created, | | | | Riku is the younger brother of Saya. He loves to cook |
| based from the 2000 animated film Blood: the Last | | | | and would often be the more reasonable between him |
| Vampire. The extended characters and story were | | | | and Kai. During one of their trips to France, he |
| created by Aniplex and Production I.G, to explain more | | | | encountered Diva, whom he mistook for Saya. Diva |
| about the origins of the main protagonist named Saya. | | | | attacked him and drained his blood, but Saya was |
| To understand more about Blood+ anime, and the | | | | forced to save him and turned him into a chevalier. But |
| origins of Saya and the chiropterans, introduction to the | | | | eventually, Diva took a special interest with him and |
| main characters are in order. | | | | sought him inside the Red Shield headquarters, where |
| * Saya Otonashi | | | | she eventually killed him after raping him. |
| Saya is the main protagonist of Blood+. At the start of | | | | * David |
| the series, she was already into her first year of | | | | David is Saya's current handler. He was an expert in all |
| awakening. She was under the protection of the Red | | | | kinds of military combat, and was an efficient handler |
| Shield, the descendants of Joel Goldschmidt, the | | | | who organizes all the infiltration processes needed to |
| original adopted father of Saya during the 1800s. She | | | | defeat Diva. His father who was also named David |
| had just woken up from her 30 year hibernation under | | | | was originally Saya's handler, but he died under Saya's |
| the care of George Miyagusuku, a former operative of | | | | hands when she went crazy during the Vietnam War. |
| the Red Shield, and a veteran of the Vietnam War. | | | | * Julia |
| She was still trying to recall her lost memories when a | | | | She is a doctor from Red Shield and Saya's personal |
| series of attacks was triggered, and she found herself | | | | physician. As the series unfolds, her role within the |
| fighting a battle she had forgotten. Along with her | | | | organization is to conduct research on how best to |
| faithful Chevalier, Hagi, they were once again, working | | | | destroy chiropterans. Her mentor, Dr Collins, convinces |
| with the Red Shield to defeat her one and only enemy, | | | | her to defect to Red Shield and work for the enemy. |
| Diva. | | | | She agreed, as she wanted to conduct further |
| * Hagi | | | | research, and was eventually appointed as Diva's |
| Hagi is the only chevalier created by Saya. During the | | | | personal doctor, which made Dr. Collin's jealous. Dr. |
| late 1800s, he was purchased by the original Joel as a | | | | Collin's tried to kill her, but David protected her from the |
| companion for Saya, with the hope that they might | | | | bullet. After this, she returned to Red Shield, where she |
| mate and produce specimens for future | | | | aided them for the final battle between Saya and Diva. |
| experimentation. He met an accident on a cliff, while | | | | * Lewis |
| retrieving a flower Saya wanted for Joel's birthday, | | | | Lewis is the jack-of-all-trades of David's team. He's |
| and as a result, he was unwittingly turned into a | | | | behind the organization of crew, supplies and |
| Chevalier. He carries his cello on a large black case | | | | information. He was a former CIA, during the American |
| that also doubles as his weapon. Hagi never eats or | | | | operations, and was responsible for bringing in more |
| sleeps. He usually needs to feed on blood whenever | | | | information regarding the Cinq Fleche group. He is |
| he was gravely injured. He is also a source of | | | | constantly eating snacks while working, and would |
| nourishment for Saya, when she finally acknowledges | | | | often wear costumes to blend well while doing covert |
| her chiropteran biology, but refuses to take human | | | | operations. |
| blood directly from its source. And unlike diva's | | | | * Diva |
| chevaliers, he never made a full chiropteran | | | | Diva is Saya's twin sister and enemy. She was born |
| transformation due to his own choice after seeing | | | | from the same cocoon as Saya's, but she was |
| Saya's fear of him. His right hand was bandaged most | | | | unlucky when Joel chose Saya over her for his |
| of the time because Saya injured it during the Vietnam | | | | experimentation. She used to sing songs in the |
| war when she was forced to wake up from her | | | | abandoned tower at the Zoo, the estate where Joel |
| hibernation period, and she went berserk. | | | | conducts his experiments. Because of this |
| * Kai Miyagusuku | | | | maltreatment, Diva never fully developed her social |
| Kai is the older brother of Saya, and the first adopted | | | | skills, and often acted like a child. She would play with |
| son of George Miyagusuku. He was a popular student | | | | dolls and toy with her food. Her chevaliers spoiled her |
| who loves sports, but after an injury, was forced to | | | | rotten. She never cares for anybody except for |
| quit his team. He became morose and moody, often | | | | herself, even after one of her chevaliers died for her. |
| getting involved in fights. But he believed its up to him | | | | Her desire to kill Saya has always been her goal, and |
| to make his adopted family stick together. He cares | | | | she had no trouble remembering her past. But despite |
| for both Saya and Riku deeply, and was devastated | | | | all these, her secret wish of having a family is what |
| when Riku died. It was he who took care of Saya, | | | | she really wants. Nathan, one of her chevalier |
| whenever she became depressed with all the | | | | lamented that, they never really understood her desire |
| happenings surrounding her. | | | | and once said that even though she is free, she was |
| * Riku Miyagusuku | | | | never really out of her cage. |