Jeong Hunseok is a Korean voice actor known for his work in dubbing foreign animations, television series, and films for the Korean market. He has lent his voice to a wide array of characters across various genres, demonstrating versatility in his craft.

His career includes significant contributions to anime, where he has voiced leading and supporting roles in numerous series. He is the Korean voice of Sandstorm, known as Cyclonus in some regions, in the animated series Transformers: Armada. He also voiced the character Sa Sakujun, also known as Lin Senya, in both The Story of Saiunkoku and The Story of Saiunkoku Second Series. Beyond these, his anime dubbing credits include roles such as Akira Udou in Air Gear, Noboru Yamaguchi in Cromartie High School, Seijuurou Shin in Eyeshield 21, Kintarou Oe in the Ani-box dub of Golden Boy, Ryuko in Hero Tales, and Guren in Shonen Onmyouji.

In addition to anime, Jeong Hunseok's voice is recognized from Korean dubs of live-action and animated productions. His film and television dubbing work includes providing the Korean voice for Captain America or Steve Rogers in the film Avengers, Boone Carlyle in the series Lost, and Jasper Hale in The Twilight Saga: Eclipse. He has also voiced characters in animated features such as the title character in Rango, Manu Tuiama in Aloha, Scooby-Doo!, and Trey in Meta Zets. His other credits include the role of Eric Whitley in Cold Case, Cedrick in W.I.T.C.H., and Karl van Beethoven in Copying Beethoven.