Shinnosuke Murashima is a Japanese voice actor from Kyoto Prefecture, born on September 10th. He is affiliated with the talent agency AZ Creative. His hobbies include singing rap music, watercolor painting, and visiting cafes. He has also listed skills in using a single-lens reflex camera for portrait photography and competitive cycling.

Murashima is known for his role as Tsūgen Sasaki in the 2020 original rugby anime television series number24. In addition to this anime role, he has provided his voice for the character Kazuma Iogi in the visual novel Koi no Hanasaku Hyakkaen. He also had a role as an assistant director for the first two episodes of the anime VazzRock the Animation. Information on his career indicates a working collaboration with fellow voice actors Masamu Ono and Ichi Miyagi.