Seon-Hui Mun is a prominent South Korean voice actress born on January 13, 1968. She is affiliated with the Korean Broadcasting System's Voice Acting Division, having joined the agency in 1990. Mun has built an extensive career lending her voice to the Korean-language dubs of numerous animated series and films, becoming a well-recognized talent in the industry.

Her filmography includes a wide array of iconic roles in anime series. She is known for voicing Louise in The Familiar of Zero, The Familiar of Zero: Knight of the Twin Moons, and The Familiar of Zero: Rondo of Princesses. She also played Tenma Tsukamoto in School Rumble, School Rumble: 2nd Semester, and School Rumble: Extra Class. Other significant roles include Rena Ryūgū in When They Cry - Higurashi, Kaoru Kamiya in Rurouni Kenshin, Tohru Honda in the 2001 Fruits Basket series, Sakura Kinomoto in Cardcaptor Sakura, and Agumon and Mimi Tachikawa in the Digimon Adventure series. In film, she voiced the lead character Shizuku Tsukishima in Whisper of the Heart and Taeko Okajima in Only Yesterday.

Mun has also provided her voice for a variety of non-anime roles, such as the character Sea Fairy Cookie in the Korean version of the video game CookieRun: Kingdom. Her work demonstrates a recurring association with the Korean dubbing productions for major anime franchises, including Digimon, Rurouni Kenshin, and the works of Studio Ghibli, highlighting her status as a leading figure in South Korean voice acting.