Rumi Hiiragi is a Japanese actress who was born on August 1, 1987, in Tokyo. She began her career in entertainment as a child actor at the age of six, appearing in numerous television commercials. Her early work included roles in television dramas, and she gained attention for her performance as the young Moe Tokiwa in the 1999 NHK morning drama series Suzuran, a role she reprised in the 2000 film version.

Hiiragi is widely recognized for her voice work in animated films from Studio Ghibli. In 2001, she provided the voice for the protagonist, Chihiro, in Hayao Miyazaki's Academy Award-winning film Spirited Away, a performance that brought her international fame. This role remains her most iconic and is a significant achievement in her career. She continued her collaboration with Studio Ghibli by voicing the character Sachiko Hirokoji in the 2011 film From Up on Poppy Hill. She also had a voice role in another Ghibli film, Ponyo, playing a young mother.

Beyond her work in animation, Hiiragi has maintained a steady career as a live-action actress. Her television credits include a role in the popular 2005 drama Nobuta o Produce, where she played the character Kasumi Aoi. She has also appeared in numerous other television dramas and films, such as the live-action adaptation of Detroit Metal City and Kamen Rider Decade. Her filmography demonstrates a consistent presence in the Japanese entertainment industry across both television and film, balancing voice acting roles with on-screen performances.