Shintaro Asanuma

Shintaro Asanuma (浅沼 晋太郎), born January 5, 1976, is a Japanese voice actor and singer from Morioka, Japan whose career spans anime performance, character music, and other media. He is known for expressive delivery and a versatile vocal presence, and he has built a profile that connects spoken roles with musical work in a way that appeals to both anime viewers and anime music listeners. In the seiyuu scene, Asanuma stands out for moving between character roles, songs, and related projects rather than treating voice acting and singing as separate paths. That crossover has made him relevant within the broader seiyuu-singer landscape, where performers often contribute to anime through both acting and theme-related or character-driven music. In August 2025, he also took part in the reunion of Assassination Classroom's voice-actor unit 3-nen E-gumi Utatan for a new song, underscoring how closely his career remains tied to anime-associated music projects. Through that combination of voice work and singing activity, Asanuma continues to represent the kind of artist whose work can be followed from both the casting side and the music side of anime.