Akinari Sato is a Japanese voice actor affiliated with the talent agency Rush Style and is from Aichi Prefecture, born on August 21. He is set to voice the role of Bardiche, Fate Testarossa Harlaown's intelligent device, in the 2026 anime series Magical Girl Lyrical Nanoha EXCEEDS Gun Blaze Vengeance. This casting was announced in February 2026 as part of the reveal for the franchise's twentieth anniversary project. Prior to this prominent role, Sato's career included a number of supporting parts in television anime. His voice work in 2024 included a station employee in the series A Sign of Affection. In 2025, he voiced a secretary in Alma-chan Wants to Be a Family!, a former judo fighter henchman in Tojima Wants to Be a Kamen Rider, a noble's son in Pass the Monster Meat, Milady!, and a staff member in The Gorilla God's Go-To Girl.