Atsushi Kisaichi is a Japanese voice actor and narrator born on February 23, 1972, in Minato, Tokyo. He is affiliated with the talent management firm Aoni Production, having graduated from its associated training school, Aoni Juku, as part of its 13th graduating class. Kisaichi began his voice acting career in the early 1990s, with his debut role occurring in 1990.

Over a career spanning more than three decades, Kisaichi has built an extensive filmography across anime television series, original video animations (OVAs), and video games. Among his most prominent and enduring roles is the character Meta Knight in the long-running Kirby franchise. He provided the Japanese voice for the enigmatic swordsman in the anime series Kirby: Right Back At Ya! and has continued to voice the character in numerous Kirby video games, including the Super Smash Bros. series starting with Super Smash Bros. Brawl in 2008 and continuing in subsequent installments. Another significant role is Aoba Seragaki, the protagonist of the multimedia DRAMAtical Murder project, which includes a 2012 visual novel, its various sequels, and a 2014 anime adaptation.

His work encompasses a wide variety of other characters, demonstrating his range. In the 1990s, he voiced Ryuu Hashiba in Brave Command Dagwon and Oob in Dragon Ball GT. The early 2000s saw him take on leading roles such as Yuuichi Aizawa in the 2002 anime adaptation of Kanon and Hideaki Asaba in His and Her Circumstances. He has also appeared in popular long-running series like Detective Conan, Gintama, and One Piece in guest or supporting roles. In the video game realm, beyond his iconic role as Meta Knight, Kisaichi is known for voicing the strategist Xu Shu in the Dynasty Warriors series from Dynasty Warriors 7 Empires onward.

Atsushi Kisaichi has been involved in several recurring collaborations throughout his career. He is a member of Aoni Production, a major talent agency, and has frequently worked alongside fellow voice actors such as Ryotaro Okiayu and Hikaru Midorikawa in projects like Ring ni Kakero 1: Sekai Taikai-hen. A notable recurring collaboration is with the Angelique franchise, where he consistently voiced the character Timka across multiple series and OVAs, including Angelique: Shiroi Tsubasa no Memoir, Koi Suru Tenshi Angelique: Kagayaki no Ashita, and Angelique: Seichi Yori Ai o Komete. He also voiced the character Phil Fritz in both Future GPX Cyber Formula Saga and Future GPX Cyber Formula Sin. His body of work also includes numerous drama CDs and dubbing roles for foreign television series, where he provided the Japanese voice for Speedy (Roy Harper) in several animated series based on DC Comics, such as Teen Titans and Young Justice.