Ai Satō is a respected Japanese voice actress and actress born on February 12, 1955, in Tokyo, Japan. Her birth name is Kiyoko Satō, and she is affiliated with the talent management firm Ken Production. A graduate of Aoyama Gakuin University, Satō has built a prolific career spanning from the 1980s to the present day, becoming a familiar voice in Japanese animation.

Satō's career is marked by an extensive and diverse range of roles in television anime, original video animations, and theatrical films. Her voice work includes the role of Komakaachan in the Yo-kai Watch! series, the Narration for Kiku-chan to Ōkami, and both Nurse and Saeko in Kotowaza House. She is also known for playing Yuki in Idol Densetsu Eriko, Mariko "Grandma Marie" Juumonji in Ojarumaru, the Gakuenchou (school principal) in Gakuen Utopia Manabi Straight!, Sakie Kannazuki in Twin Angel: Twinkle Paradise, and Masako Aoi in Senpai is an Otokonoko: Sunshine After the Rain. Her portrayal of Sachiko Yagami, the mother of the protagonist Light Yagami, in Death Note brought her performance to a wide international audience. Additional notable roles include Yōko Hoshikawa in The Brave Fighter Exkizer, the Commander in Nobunagun, Mrs. Bradley in Fullmetal Alchemist: Brotherhood, and various recurring characters in long-running franchises such as Pocket Monsters (Pokémon), Detective Conan, Crayon Shin-chan, and Chibi Maruko-chan.

Beyond anime, Satō has a significant career in voice dubbing for foreign films and television series. She is well-known as the regular Japanese dubbing voice for American actress Kathy Najimy, replicating her performances in films like Sister Act and Hocus Pocus. Her other prominent dubbing roles include Petunia Dursley in the Harry Potter film series, Mon Mothma in various Star Wars productions, and Ugga Crood in The Croods animated movies. Her work also extends to video games, with performances such as Jessica in the Langrisser series and Jessie's mother in Final Fantasy VII Remake.

While she may not have received major international awards, Ai Satō's longevity and consistent body of work have cemented her status as a pillar of the voice acting industry in Japan. Beyond performing, she contributes to the next generation of talent as a lecturer at the voice acting school School Duo. Her hobbies include traditional Japanese dance and playing the saxophone.