Marie Mizuno is a Japanese voice actress born on September 20 in Tokyo, Japan. She began her career in the entertainment industry in 2010 and is currently affiliated with the talent agency 81 Produce. She was previously affiliated with Axl-One, and until January 1, 2020, she used the stage name Marie Mizuno, written with the characters 水野 麻里絵.

Mizuno is best known for her long-running role as the protagonist Gao Mikado in the card game anime series Future Card Buddyfight. She voiced the character across multiple installments of the franchise, including the original Future Card Buddyfight series, Future Card Buddyfight X: All-Star Fight, Future Card Buddyfight Battsu, Future Card Buddyfight Triple D, and Future Card Buddyfight 100. Her involvement with the series extended beyond voice acting, as she also performed the opening theme song "Buddy Buddy BAAAAAN!!" for the show in character as Gao Mikado alongside co-star Shuta Morishima.

Another significant role in her career is Volkan in the Sorcerous Stabber Orphen franchise. She voiced this character in the 2020 series Sorcerous Stabber Orphen, its sequel Sorcerous Stabber Orphen: Battle of Kimluck, and the subsequent Sorcerous Stabber Orphen -Chaos in Urbanrama-.

In addition to these major roles, Mizuno has voiced a variety of other characters in anime series aimed at younger audiences. Her filmography includes the role of Harubaru Hinode in Baku Tech! Bakugan Gachi, Yuki in Breakers, Pō-kun in Picchipichi Shizuku-chan, Selka in the ONA series mini vanguard Large, and Gaō Mikado in 40-Shūnen da yo! Coro Coro All-Star Shōgakkō. Her other credits from the early 2010s include guest roles in series such as Sket Dance, Battle Girls: Time Paradox, Duel Masters Victory, and Hero Bank.