Ami Koshimizu, born on February 15, 1986, is a renowned Japanese actress and singer whose versatile voice has brought to life a vast array of characters across anime, video games, and dubbing. From young girls and adult women to boys and animals, Koshimizu has demonstrated an extraordinary range that has made her one of the most respected voice actresses in the industry. She first gained widespread recognition for her leading role as Nadja Applefield in the anime series Ashita no Nadja, which showcased her ability to carry a series with emotional depth and energy. This early success laid the foundation for a career that would see her become synonymous with some of the most iconic characters in modern anime.

Koshimizu's career flourished in the mid-2000s as she took on a series of high-profile roles that cemented her status as a leading voice actress. She voiced Tenma Tsukamoto in the beloved comedy series School Rumble, Anemone in the critically acclaimed Eureka Seven, and Kallen Stadtfeld in the massively popular mecha series Code Geass. Her portrayal of Holo, the wise and witty wolf deity in Spice and Wolf, earned her particular acclaim, as she masterfully balanced the character's ancient wisdom with playful charm. During this period, she also voiced Charlotte E. Yeager in the Strike Witches series and Yumi Hoshino in KimiKiss: Pure Rouge, further demonstrating her ability to inhabit diverse genres from action to romance.

The 2010s saw Koshimizu continue to expand her repertoire with even more prominent roles. She voiced Ryuko Matoi, the fiery and determined protagonist of the hit series Kill la Kill, a performance that became one of her most celebrated. She also took on the role of Sailor Jupiter in Sailor Moon Crystal, bringing new life to a classic character for a new generation. Her work extended into the Danganronpa franchise as the eccentric Ibuki Mioda, and she voiced Mikumo Guynemer in the musical mecha series Macross Delta. In video games, Koshimizu became a major presence, voicing Yukiko Amagi in Persona 4, Agnès Oblige in Bravely Default, and the iconic fighter Mai Shiranui in various fighting games since KOF Sky Stage. She also lent her voice to the character Beidou (known as Hokuto in Japanese) in the global phenomenon Genshin Impact and voiced both Zima and Projekt Red in the popular mobile game Arknights.

Beyond her work in Japanese media, Koshimizu has also made a mark in international dubbing, particularly for Thai action films starring Yanin Vismitananda. She also voiced a character in the live-action anime film Shimajiro and the Rainbow Oasis, showcasing her willingness to explore different formats. Her extensive filmography includes roles in A Certain Scientific Railgun as Shizuri Mugino, Suite PreCure as Hibiki Hojo, and Cross Ange as Ersha, among many others. With a career spanning nearly two decades, Ami Koshimizu continues to be a highly sought-after talent, consistently delivering performances that resonate with audiences worldwide and solidifying her legacy as one of Japan's most versatile and beloved voice actresses.