Kaori Ishihara is a Japanese voice actress and singer born on August 6, 1993, in Chiba Prefecture, Japan. She is affiliated with the talent agency Style Cube and the record label Pony Canyon for her music career. Ishihara began her entertainment career in 2008 as a member of the training group HAPPY! STYLE Rookies. She made her professional voice acting debut in 2010 with a role in the anime series Maid-sama!. Her early breakthrough came with prominent roles in 2012, including Madoka Kyono in Lagrange: The Flower of Rin-ne and the lead role of Aladdin in Magi: The Labyrinth of Magic.

Throughout her career, Ishihara has built an extensive filmography across anime, video games, and film. In addition to the roles listed in the query, she is widely known for her work as Ram in the Hyperdimension Neptunia series, Seira Otoshiro in Aikatsu!, Azusa Azuki in The "Hentai" Prince and the Stony Cat., and Avrora Florestina in the Strike the Blood franchise. Her versatility is demonstrated through roles of various ages and personalities, such as the young boy Shōta Magatsuchi in Miss Kobayashi's Dragon Maid S and the determined scientist Mihari Oyama in ONIMAI: I'm Now Your Sister!. She has also voiced major characters in recent series like Yuzuha Mishima in Higehiro and Lilith in Combatants Will Be Dispatched!.

Beyond voice acting, Ishihara has been actively involved in music. She was a member of the voice actress idol group StylipS from 2011 until her graduation in April 2013. She also formed the popular J-pop duo YuiKaori with fellow voice actress Yui Ogura, with whom she released multiple singles and albums until the unit's activities were paused in 2017. Ishihara launched her solo singing career in 2018 under the Pony Canyon label with her debut single, "Blooming Flower". Her subsequent music, including singles like "TEMPEST" which was used as the opening theme for the anime Demon Lord, Retry! in 2019, has charted on the Oricon charts. She has also released solo albums, including Sunny Spot in 2018.

In recognition of her early work and potential, Ishihara was awarded the Best Rookie Actress award at the 7th Seiyu Awards in 2013. Over the years, she has maintained a strong presence in the industry through consistent voice work and her musical pursuits. Her notable recurring collaboration includes her long-standing role as Ram in the numerous installments of the Hyperdimension Neptunia franchise, spanning anime, OVAs, and video games since 2011.