Jeong-Hwa Yang is a prominent South Korean voice actress known for her extensive work dubbing foreign animation and video games into Korean. She was born on November 27, 1970, in Busan, South Korea, and is a graduate of Dong-A University. Yang began her career in 1995 as part of the first voice actor recruitment class for the broadcasting company CJ E&M (then known as Tooniverse). After several years, she transitioned to freelance work in 1998, a status she has maintained throughout her career.

Yang's filmography is exceptionally broad, encompassing a wide variety of character types across numerous popular anime series. She is particularly recognized for voicing lead and iconic characters in the Korean dubs of Japanese anime. Some of her most notable roles include the titular character Keroro in Sgt. Frog, Saber in Fate/stay night, Olivier Mira Armstrong in Fullmetal Alchemist: Brotherhood, and Shoyo Hinata in the early seasons of Haikyu!!. Her repertoire also includes playing Edward Wong Hau Pepelu Tivrusky IV in Cowboy Bebop, Hikaru Shindo in Hikaru no Go, and both Yuko Ichihara in xxxHOLiC and her counterpart in Tsubasa: RESERVoir CHRoNiCLE. She has voiced the roles of Quatre Raberba Winner in Mobile Suit Gundam Wing and Ranma in Ranma 1/2.

In addition to her work in Japanese anime, Yang has provided voices for numerous other characters as specified. These roles include Nana in Meltylancer: The Animation, Daiya Tsuwabuki in Gaiking: Legend of Daikū-maryū, Soheui (Aya Stanford) in Future GPX Cyber Formula Sin, Asuka Hoshino in Sentimental Journey, Mikako Nagamine in Voices of a Distant Star, Beth, Chawoo, and Ercell in Petite Princess Yucie, Sam in 8 Man After, and Red in Pokémon Origins. She also voiced Kim Dasom/Cure Happy in the Netflix series Glitter Force and Rachel in the Korean dub of Tower of God. Her roles extend to Western animation as well, such as voicing Azula in Avatar: The Last Airbender and multiple characters, including Princess Celestia and Sweetie Belle, in My Little Pony: Friendship is Magic.

Yang has also been highly active in dubbing for Korean animated productions and video games. She voices Helly in the popular children's series Robocar Poli and has taken on roles in shows like Flowering Heart, The Haunted House, and Catch! Teenieping. Her video game work includes voicing Fizz in League of Legends, Xilonen in Genshin Impact, and GingerBrave in CookieRun: Kingdom.

Throughout her long-standing career, Jeong-Hwa Yang has demonstrated remarkable versatility and longevity in the voice acting industry. She remains active and continues to be a sought-after talent, distinguishing herself as one of the few members from her 1995 debut cohort to maintain a consistently busy career.