Hitoshi Yanai is a Japanese voice actor born on October 27, 1974, in Chiba Prefecture, Japan. He is affiliated with the talent management firm Ken Production. Outside of voice acting, he holds a certified cooking license and has training in stage combat.

Yanai began his voice acting career in 2006, with his first role in the television anime Kotencotenco. In 2007, he secured his first major role as Griffith Lowran in Magical Girl Lyrical Nanoha StrikerS. Over the following years, he built a career characterized by a wide range of supporting characters in numerous popular anime series. His filmography includes roles in long-running and critically acclaimed shows such as Gintama, where he voiced various characters including a Shinsengumi member, a policeman, and an onmyoji. He also contributed to Fullmetal Alchemist: Brotherhood and had a role in the 2010 film The Disappearance of Haruhi Suzumiya as Uemura Masaki.

In the 2010s, Yanai continued to take on diverse roles. He appeared in Jormungand and its second season as Tojo Akihiko. Other notable credits from this period include characters in Attack on Titan, The Unlimited: Hyobu Kyosuke, and Daily Lives of High School Boys. While the specific role of Detective Mikekado in the series Nazotoki-hime wa Meitantei? was mentioned, it could not be independently verified in the available sources. Beyond animation, Yanai has lent his voice to video games such as Arc Rise Fantasia and Time Hollow, and has participated in drama CDs, web radio, and stage productions.