Yumi Adachi is a Japanese actress and singer who was born on September 14, 1981, in Tokyo. She is primarily known for her extensive career in live-action film and television, which began when she was a child, but she has also taken on select voice acting roles in animated projects. Adachi attended Horikoshi High School, an institution known for nurturing entertainment talent. Her career is marked by a transition from a celebrated child star to a versatile performer in mature roles.

Adachi's voice acting credits include the character Julia in the 1995 animated film Lupin III: Farewell to Nostradamus. She also provided the voice for the character Amon in the 2000 anime film The Boy Who Saw the Wind. Another of her voice roles is Dolly in the 2006 film Soreike! Anpanman: Inochi no Hoshi no Dolly. Beyond these three roles, her other voice work includes a part in the 1997 film Kikansha Sensei and a role in the 2004 animated project The Legendary Crocodile Jake. Her work in animation also extends to Japanese-language dubbing of foreign films.

While Adachi's voice acting filmography is limited compared to her extensive live-action work, her contributions to anime are part of a broader, celebrated career in Japanese entertainment that also includes a successful music career with several albums and singles released in the 1990s.