Gyeong-Ja Lee is a seasoned Korean voice actor known for her extensive work dubbing foreign films and animated series for Korean audiences, particularly during the height of the home video and television dubbing era. Born on February 12, 1950, she has lent her voice to a wide array of characters across numerous genres, establishing her as a familiar presence in Korean popular culture.

Her career encompasses a significant number of anime roles, where she has portrayed both heroic and villainous characters. Among her notable anime credits are the roles of Professor Kitty in Science Fiction Saiyuki Starzinger, Milady in Anime Sanjushi, and Pipi in Umi no Triton. She also voiced the character Pakkun in Paul no Miracle Daisakusen and the antagonist Doronjyo in Yatterman. In literary adaptations, Lee took on the role of Margaret March in the anime Little Women and later reprised the character as Margaret March-Brooke in its sequel, Little Women II Jo's Boys. Her other prominent anime voice work includes Queen Beryl in the Korean dub of Sailor Moon and the role of Chiyo in Naruto Shippūden.

Beyond anime, Lee's voice is widely recognized from her work on numerous Western films and television series. She provided the Korean voice for a vast range of characters, demonstrating her versatility. Her dubbing credits include iconic roles such as Jessica Fletcher in Murder, She Wrote, Diana Prince/Wonder Woman in the live-action Wonder Woman series, Cheetara in Thundercats, and Mrs. Molly Weasley in Harry Potter and the Prisoner of Azkaban. She also voiced Helen Tasker in True Lies, Linus van Pelt in Peanuts, and Brenda J. Wyatt in Highlander. This extensive body of work across both animation and live-action dubbing highlights her significant contribution to bringing international stories to Korean-speaking audiences.