Oshi no Ko Characters

Born Aquamarine Hoshino, Ai's son, who remembers his past life as Gorou Amamiya, the country doctor who was to deliver Ai's twins and was killed shortly before they were born. After Ai is killed when the twins are small, he works out that someone close to her, probably their father, gave her killer the address, and he resolves to find him. He becomes the director Taishi Gotanda's apprentice and returns to acting, using a TV drama, a dating show and the Tokyo Blade play to get close to people from Ai's past. Cool, calculating and still haunted by her death, he is fiercely protective of Ruby, and at the end of season 3 he finally tells her that he was Gorou.

Aqua's twin sister, reborn with the memories of Sarina Tendouji, a seriously ill twelve-year-old patient of Gorou's who idolised Ai and dreamed of being an idol herself. Cheerful, loud and outgoing, she joins Strawberry Productions in high school and revives B-Komachi with Kana and MEM-cho, partly in the hope that the name will catch Gorou's attention. Finding Gorou's remains in Takachiho changes her, and in season 3 she turns to Ichigo for advice and sets out to become famous fast so that she can find the person behind his death and Ai's. She is chosen to play Ai in the film about her mother's life.

The star and centre of B-Komachi, scouted at twelve by Ichigo Saitou after a childhood in an orphanage. Unsure that she had ever loved anyone, she learns to perform love for her fans, and she hides the birth of her twins so that she can keep working. Dazzling on stage and careless off it, she tells Gorou that lies are the most exquisite form of love. She is killed by a stalker while the twins are small, and her life drives everything that follows.

A former child star once famous for crying on cue, whose offers dried up as she grew older; she learned to hold back so that her co-stars could shine. She first meets Aqua on a film set when they are toddlers, finds him again at Youtou High School and brings him into the Sweet Today drama. Aqua talks her into joining B-Komachi, where she becomes the centre, and she is in love with him. Sharp-tongued, hard-working and far less confident than she sounds, she weathers a scandal in season 3 and then leaves the group to return to acting.

A gifted stage actress who joins the reality dating show My Love with a Star Begins Now to raise her theatre company's profile. She prepares for roles by studying people in depth, and she recreates Ai on the show so well that Aqua is shaken; later she works out on her own that he is Ai's son. She and Aqua begin as a fake couple and become a real one in Takachiho, until he breaks up with her in season 3 to keep her out of danger. By then she has identified the twins' father, and she is determined to stop Aqua's revenge.

A popular YouTuber and TikToker who presents herself online as a high-school girl but is really 25. As a teenager she gave up her dream of being an idol to help support her family. Aqua invites her into B-Komachi after they meet on the dating show, and her feel for social media helps the group grow. Warm, playful and hard-working, she gets on with the younger girls as an equal, and she follows the tangle between Aqua, Kana and Akane without ever deciding whom to root for.

Ichigo's wife, first seen as a grudging babysitter for Ai's twins, who comes to love them and adopts them after Ai's death. With her husband gone, she keeps Strawberry Productions going by turning it towards internet talent, then reopens its idol section so that Ruby can debut. She is sharper than she first seems and sees through MEM-cho's real age at once.

The president of Strawberry Productions and the manager who scouted Ai and made B-Komachi a success. After her death he disappears for years. In season 3 Ruby tracks him down for advice on getting famous, and Aqua learns that Ichigo also wants to find the person behind Ai's death and doubts the answer Aqua had settled on. At the end of the season, Aqua engineers his reunion with Miyako and his return to the agency.

A film director who casts the toddler Aqua in a film alongside Ai and Kana and sees his talent at once. After Ai's death, Aqua becomes his apprentice, and he is one of the few people who know who Aqua's mother was. He coaches Aqua in emotional acting for Tokyo Blade, and in season 3 the two begin a film about Ai's life, a project that grew in part from two DVDs Ai left in his care for the twins.

A model and actor who plays the male lead in the Sweet Today drama and is badly outclassed by Kana and Aqua. Humbled, he works to improve, and in the Tokyo Blade play he wins over an audience that had written him off, having followed Aqua's advice to pour his practice into a single sword fight.

The award-winning star of Akane's theatre company, who plays Blade, the lead, in the Tokyo Blade play. He was adopted from an orphanage by the company's director, Toshirou Kindaichi, after losing both parents when he was young. A DNA test shows that he is Aqua's half-brother, and what Taiki tells him about his parents briefly convinces Aqua that their father is already dead.

A former actor from Akane's theatre company who now heads his own agency. For most of the series he is only glimpsed, visiting Ai's grave without being seen by Ruby. In season 3, Akane studies old rehearsal tapes, notices how much he looks like Aqua and works out that he is the twins' father and the person behind Ai's death.