Tatsuhisa Suzuki is a Japanese voice actor and singer born on November 11, 1983. He began his career after training at the Japan Narration Acting Institute, making his debut in 2003 with a role in the anime television series DEAR BOYS. Early in his career, he also started performing music professionally, first as a solo artist and later as the lead vocalist of the rock band OLDCODEX under the stage name Ta_2.

Suzuki has built a substantial career with a wide range of prominent anime roles. Among his most recognized performances are Makoto Tachibana in the Free! series, Ban in The Seven Deadly Sins franchise, Kazunari Takao in Kuroko's Basketball, and Ranmaru Kurosaki in the Utano☆Princesama series. He also voiced major characters such as Noctis Lucis Caelum in the Brotherhood: Final Fantasy XV anime and the game Kingsglaive: Final Fantasy XV, and Anos Voldigoad in The Misfit of Demon King Academy.

The extensive list of roles provided covers many of his performances across different series. In the early 2020s, these included Alan Stuart in My Next Life as a Villainess, Shiva in Record of Ragnarok, Ken "Draken" Ryūgūji in Tokyo Revengers, and Kuruma in Tesla Note. He also voiced Ōma Tokita in the Kengan Ashura series, a role he reprised for the crossover film Baki Hanma vs. Kengan Ashura. In the late 2010s, his credits included Mikio Shirato in the Megalobox franchise, Rai Nagamori in Those Snow White Notes, and Kyōhei Misumi in Burning Kabaddi. His work also features a range of characters in series such as Welcome to Demon School, Iruma-kun, Somali and the Forest Spirit, To the Abandoned Sacred Beasts, Assassins Pride, and Blade of the Immortal, among many others.

Beyond these recent and prominent roles, Suzuki's career includes long-running parts in shows like the various Gundam series, Black Butler, and The Familiar of Zero, demonstrating his consistent presence in the industry since the early 2000s. He has a tendency to voice characters who are either easygoing or possess a rebellious streak.

In addition to his voice acting, Suzuki's musical career has been a significant part of his professional life. With OLDCODEX, he performed many theme songs for anime series, including those in which he also voiced characters. His work as a singer and voice actor earned him recognition, including winning in the voice actor category at the Animage Anime Grand Prix in 2015. Suzuki was formerly affiliated with the talent agency I'm Enterprise and began working as a freelance voice actor in late 2023.