Jun Mizuki is a Japanese voice actress and stage performer born on February 12, 1973, in Miyagi Prefecture, Japan. She began her career in the entertainment industry around 1998 and was previously affiliated with the theater troupe 21st Century FOX. Currently, she works as a freelancer and has at times performed under the name Mizuki. Beyond her voice work, she has maintained an interest in stage acting.

Mizuki is best known for her role as Naota Nandaba, the twelve-year-old protagonist of the cult classic animated series FLCL. She is also recognized for her long-running role as Rere in the Ojamajo Doremi franchise, a character she voiced across multiple series including Ojamajo Doremi Na-i-sho and Ojamajo Doremi DOKKAAN!

Her other anime credits include roles in Strawberry Eggs, Figure 17, HAND MAID May, Bakuto Sengen Daigander, and the Japanese dub of the Powerpuff Girls. In the realm of video games, she lent her voice to the character Tomoe Kusakabe in the Mikagura Shoujo Tanteidan series. Her performance work also extends to drama CDs and stage productions.