Madoka Murakami is a Japanese voice actor known for their work in anime television series, particularly within the Sylvanian Families franchise. Murakami's most prominent and recurring role is providing the voice for the character Ralph Walnut, a squirrel boy, in multiple recent CGI anime adaptations based on the popular toy line. This role was first established in the 2022 television series Sylvanian Families: Freya no Happy Diary. Murakami continued to voice Ralph Walnut in the subsequent 2023 series, Sylvanian Families Freya no Go for Dream!, and its 2024 sequel, Sylvanian Families Freya no Piece of Secret. Their work on these productions represents a consistent collaboration with the animation studio LandQ Studios, which handles the animation for these series.

Beyond their extensive involvement with the Sylvanian Families universe, Murakami has also contributed to other anime projects. A notable early role was as the voice of Ritsu Enshū in the 2011 television series R-15. Information about Madoka Murakami's broader career, including training, agency affiliation, or other significant roles outside of these productions, is not detailed in the available information.