Ryosuke Tomita is a Japanese voice actor from Ehime Prefecture. Born on November 8, he is affiliated with the agency Arise Project and stands 163cm tall. A graduate of the Japan Narration Acting Institute, he speaks the Iyo dialect, a variant of Japanese native to his home region. He holds qualifications including the Eiken English Proficiency Test Grade Pre-2, the Japanese Language Proficiency Test Level 1, and an Information Processing Skills Test Level 2. His special skill is a frog handstand, and his hobbies include watching stage plays and visiting bars.

Tomita's career includes a range of supporting and recurring roles in television anime. He voiced Uwasa Sittle in The Iceblade Sorcerer Shall Rule the World, Nean 1 in Metallic Rouge, a young worker in The Fire Hunter, and a student in Bungo Stray Dogs. In the Sasaki and Miyano franchise, he played the role of Kouta Himura, appearing in both the television series and the graduation film. He also had minor roles in popular titles such as Suzu no Tojimari, Blue Exorcist: Shimane Illuminati Saga, and the web anime Mashin Eiyuden Wataru: Shichi Tamashii no Ryujinmaru.

One of his most prominent early roles was in the television anime Fermat no Ryōri, where he voiced the main character Gaku Kitada, a math prodigy who discovers a talent for cooking. This casting was announced in early 2025, and Tomita appeared at AnimeJapan 2025 to promote the series alongside his co-star. This role marks a significant step in his career as a leading voice actor. His other early work includes roles in Scarlet Nexus and Yu-Gi-Oh! SEVENS. As a member of Arise Project, he has steadily built a portfolio of diverse characters across multiple anime productions.