Kentaro Kawai is a Japanese actor and voice actor affiliated with the talent agency Office 24. He was born in Tokyo on March 7, 1997. His training includes stage combat, in which he holds an Action License for advanced tate (staged fighting) from the Japan Actors` Association, an art he has practiced since the age of 15. He also began playing piano from the age of seven.

Kawai's career is primarily rooted in stage performance, with an extensive list of theater credits dating back to 2019. His stage work encompasses a wide range of productions, including original plays, adaptations, and franchise-based performances. Notable stage roles include his performances in series such as "With by idolTime Pripara," "Sengoku Sokuho Battle Ballズ," and starring roles in productions like "商店街グランドリオン" and "GAME~誰も知らない".

In voice acting, Kawai is known for his role as Shinya in the "Pripara" franchise. He voiced the character in the stage reading "WITH by idolTime Pripara" and subsequently in the anime series "Idol Land Pripara," which is part of the wider "Pretty Series" franchise that includes "King of Prism." This connection aligns with his portrayal of the character Shinya Oedo in the "King of Prism" series, as mentioned in the query. His work in this franchise also extends to live performances and concerts related to the series. Beyond his performance work, he holds a standard driver's license.