Riho Kuma is a Japanese voice actress from Kanagawa Prefecture, Japan, born on November 28. She is affiliated with the talent agency Peerless Gerbera. Her career began in the late 2010s, with some of her earliest roles including a part in the 2018 film Anemone: Eureka Seven Hi-Evolution. In 2019, she began landing small roles in television anime, appearing in series such as Sword Art Online: Alicization – War of Underworld and Mob Psycho 100 II.

Kuma's profile grew in the following years with a variety of supporting roles. In 2020, she voiced characters in the second season of Fruits Basket and the fantasy adventure series BOFURI: I Don't Want to Get Hurt, so I'll Max Out My Defense. A significant year for her was 2021, when she was cast in multiple projects. Notably, she voiced a high school girl in Godzilla Singular Point. Her most prominent role to date is Riche in the 2021 anime adaptation of The Case Study of Vanitas. In addition to this main role, she also provided voices for a child and Catherine's younger sister in the same series. Her filmography also includes voice work in video games, such as the character Nora in the 2019 game Tiny Metal: The Fictitious Empire.

Beyond her acting skills, Kuma has several hobbies and special talents. Her hobbies include karaoke, dancing, and traveling. She is also noted for her physical flexibility, being able to rotate her wrists and feet 360 degrees, and has qualifications in calligraphy and as a social researcher.