Soma Cruz[edit]
Soma Cruz, known in Japan as Sōma Kurusu (来須 蒼真 Kurusu Sōma?), is the protagonist and primary playable character. His seiyū is Hikaru Midorikawa, and he has no English voice actor.
He is depicted as a transfer student studying in Japan (or simply as a Japanese high school student, in the Japanese version), living a peaceful life with his childhood friend Mina Hakuba. During the events of Aria of Sorrow, Soma awakens in Dracula's castle, where he learns of his "power of dominance," which enables him to absorb the souls of monsters and use their powers. He ventures through Dracula's castle, learning that Dracula had been destroyed years prior, and his reincarnation was coming to the castle that day. Defeating Graham Jones, who had harbored the notion that he was Dracula's reincarnation, causes Soma to realize that he is Dracula's reincarnation. With the aid of his friends, he is able to escape his fate by defeating the manifestation of the castle's chaos.
Mina Hakuba[edit]
Mina Hakuba (白馬 弥那 Hakuba Mina?) is the childhood friend of Soma Cruz and the only daughter of the priest of the Hakuba shrine. Her attire in Aria of Sorrow reflects this, as her attire is that of a traditional miko. She is transported into Dracula's castle alongside Soma at the start of Aria of Sorrow and remains outside the castle for the duration of the game, offering Soma advice that she acquires from Arikado. When Soma realizes that he is Dracula's reincarnation, Mina is able to accept him for who he is, and offers him moral support. After Soma escapes his fate, Mina returns to the Hakuba shrine with him.
Genya Arikado[edit]
Genya Arikado (有角 幻也 Arikado Gen'ya?) is a member of a mysterious Japanese government organization related to national security. In truth, he is Alucard, the son of Dracula, best known as the protagonist in Konami's highly acclaimed Castlevania: Symphony of the Night. During the events in Aria of Sorrow, he comes to Dracula's castle to ensure that a dark lord is not created. He instructs Soma Cruz to seek the throne room in Dracula's castle, hoping that Soma will absorb Dracula's powers. The gambit succeeds, and Soma nearly becomes the dark lord. However, Arikado reveals that if Soma destroys the flow of chaos into the castle, he will be able to escape his fate. After Soma succeeds, Arikado congratulates him.
Graham Jones[edit]
Graham Jones (グラハム・ジョーンズ Gurahamu Jōnzu?) is the primary antagonist of Aria of Sorrow. He was born on the day of Dracula's death, giving him supernatural powers. He founded a religious sect preaching apocalyptic prophecies, and acted as its chief missionary. Graham arrives at Dracula's castle in Aria of Sorrow, believing that he will receive Dracula's powers due to being Dracula's reincarnation. He is forced to contend with Yoko Belnades and Julius Belmont, who have arrived at the castle to prevent Dracula's powers from falling into the wrong hands. Graham corners Yoko and stabs her, and begins to increase his powers by absorbing the castle's energy. He faces Soma in battle, transforming into a demonic creature. Soma manifests Dracula's powers, and is able to defeat Graham. His death forces Soma to absorb the energy Graham had been collecting, and realizes that he himself is not Dracula's incarnation.
Julius Belmont[edit]
Julius Belmont (ユリウス・ベルモンド Yuriusu Berumondo?) is the latest member of the Belmont clan featured in the Castlevania series. Members of the Belmont clan have been the protagonists of most Castlevania games, and Julius' role as a supporting character is unusual for the series. In Aria of Sorrow, Julius is playable through "Julius Mode."
In Aria of Sorrow, Julius is present in Dracula's castle as the amnesiac "J," having forgotten his identity after defeating Dracula prior to the start of the game. He encounters Soma Cruz, and Soma's dark power awakens Julius' memories. Julius later confronts Soma after realizing that Soma is Dracula's reincarnation, and battles him. Julius, unwilling to pit his full power against Soma, is defeated. After Soma escapes his fate of becoming another dark lord, Julius sends his thanks.
Yoko Belnades[edit]
Yoko Belnades (ヨーコ・ヴェルナンデス Yōko Verunandesu?, Yoko Fernandez) is a witch in the service of the Church. She is a member of the Belnades clan, whose members are adept at magic, a trait they inherited from the clan's progenitor, Sypha Belnades. Yoko comes to Dracula's castle during the events of Aria of Sorrow to stop Graham Jones, whom she believes will inherit Dracula's powers. She solicits the aid of Soma Cruz, but is stabbed by Graham when he confronts her. She is saved by Arikado, and later thanks Soma for saving her, expressing her shock that he was Dracula's reincarnation.
Hammer[edit]
Hammer (ハマー, Hamā?) is a member of the United States military that comes to the Hakuba shrine on orders from his superiors. He quickly abandons his mission when he is teleported into Dracula's castle, and on meeting Soma Cruz, becomes his vendor, serving as the game's in-game shop. During this time, he falls in love with Yoko Belnades, who does not reciprocate his affection. After Soma defeats the manifestation of chaos in the castle, he expresses his thanks to Soma, and says that he will quit the military to pursue his ambition of becoming a salesman.