Kokoa Ishii is a Japanese actress and voice actress who currently performs under the stage name Kokoa Amano. Born on July 6, 2004, in Chiba Prefecture, she began her entertainment career at a very young age as a child actor, initially working under her birth name, Kokoa Ishii. In July 2017, she transferred from the junior talent division to the voice acting department of her agency at the time, Space Craft Group, and adopted the stage name Kokoa Amano. In April 2019, she moved to her current agency, Toy's Factory.

Her early career included a range of voice roles in animated television series under the name Kokoa Ishii. She is known for her dual roles in the Cardfight!! Vanguard G Stride Gate-hen series, where she voiced both Myojin Lewes and the young version of Ryuzu Myojin. She also appeared as a young Jun Ōtsuki in the 2013 live-action Gatchaman film. Other notable early credits include Misa Maruno in the 2017 series Urahara, a role as an alien girl in Magical Somera-chan, and Ureirika in Overlord III. Her work extended to video games as well, including a role in War of Brains.

As her career progressed, Amano took on a variety of roles in major anime productions. She delivered a notable performance as Haru Takigawa in the 2020 television anime 22/7. She voiced the character Suzu in Dr. Stone: Stone Wars. Her more recent filmography includes the role of Mii in Undead Unluck, a fifth-year student in Tengoku Daimakyo, and Arthur in Suicide Squad Isekai. In 2024, she joined the cast of the popular series Laid-Back Camp for its third season, voicing the new Outdoor Activities Circle member Mei Nakatsugawa. She is also active as Coquelicot Blanche in the #Compass game and its related anime projects.

Beyond original animation, Kokoa Amano has an extensive body of work in Japanese dubbing for foreign films and series. She is particularly recognized for providing the voice for the title character in the Japanese dub of the Disney animated series Vampirina and for her role as Enid Sinclair in the Japanese version of the Netflix series Wednesday. Her longevity in the industry and versatility across animation, video games, and live-action dubbing mark her career.