Natsumi Sakuma is a Japanese voice actress and actress whose career spans several decades, with her earliest recorded credits beginning in the early 1970s. She was born on August 10, 1944, in Kumamoto, Japan. Her filmography demonstrates a consistent presence in the anime industry, particularly throughout the 1980s and 1990s.

One of Sakuma's notable roles is in the 1982 anime television series Cybot Robotchi. In this series, she provided the voice for the titular character, Robotchi, a fun-loving and mischievous robot. Her performance as the lead character in all 39 episodes of the series, which aired on TV Tokyo, stands as a significant credit in her career. She is also credited for her role in the 1999 series Zeno: Kagiri Naki Ai Ni.

Sakuma is perhaps best known for her extensive and long-running work within the beloved Urusei Yatsura franchise. She was a cast member on the original 1981 television series. Her involvement with the series extended to numerous theatrical films, where she was regularly credited for voicing the role of Ataru's mother. This includes the films Only You from 1983, Beautiful Dreamer from 1984, Remember My Love from 1985, Lum the Forever from 1986, The Final Chapter from 1988, and Always My Darling from 1991. This long-term association with a single, iconic franchise highlights a significant recurring role in her career.

Beyond her work on Urusei Yatsura, Sakuma's voice can be heard in a wide variety of other classic anime productions. Her credits from the 1970s and 1980s include the original 1972 series Devilman, the 1982 series The New Adventures of Kimba The White Lion (known in Japan as Jawando: Jungle no Ōja), and the 1988 series Mister Ajikko. She also contributed to more family-oriented titles such as the 1986 anime series Love, Sarah (Ai Shōjo Pollyanna Monogatari) and the 1989 series Chimpui. Her later credits from the early 2000s include roles in Witch Hunter Robin (2002) and the anthology series Rumiko Takahashi Theater (2003). Her filmography illustrates a diverse and active career as a supporting actress in some of Japan's most enduring anime titles.