Tateto Serizawa is a Japanese actor and voice actor born on December 1, 1980, in Shizuoka Prefecture, Japan. He is affiliated with the talent agency Breath Chavez Division. Serizawa graduated from the Department of Philosophy in the Faculty of Letters at Chuo University and holds junior high and high school teaching licenses.

His career in film and television began in the mid-1990s, with early appearances in notable horror films such as the original video versions of Ju-on: The Curse and Ju-on: The Curse 2, as well as Ring 2. He has since built an extensive filmography as a character actor in live-action productions, working with acclaimed directors like Kiyoshi Kurosawa, Takashi Shimizu, and Hirokazu Kore-eda.

Serizawa provided the voice for the character Asakura in the 2019 animated film On-Gaku: Our Sound, directed by Kenji Iwaisawa. This role represents a notable foray into voice acting for the medium of animation. Aside from this performance, his credited work is predominantly in live-action film and television, with recurring roles in series such as Kamen Rider Build and collaborations with directors like今泉力哉 (Rikiya Imaizumi).

He has received recognition for his acting with the Best Actor Award at the 10th TAMA NEW WAVE competition in 2009 for his role in the film Saitei, and the Actor Award at the Fukuoka Independent Film Festival 2014 for his performance in Shinigami Tanya.