Jeong Jae-heon is a South Korean voice actor and actor born on April 18, 1975. He began his career in 2002 after joining the Munhwa Broadcasting Corporation's Voice Acting Division. He studied Journalism and Communication at Kyung Hee University.

He is known for a wide range of roles in dubbed animated series. Some of his notable parts include Kiyomaro Takamine in Zatch Bell!, which is considered one of his signature roles. He also voiced Simon in Gurren Lagann, Hisoca in Hunter × Hunter, Deidara in Naruto: Shippuden, and Trafalgar Law in One Piece. His work includes the character Kanjine in Yes! Precure 5 GoGo! and Machahiko Kondo in Sexy Commando Gaiden: Sugoi yo!! Masaru-san. He also voiced Ryouhei in SaiKano: Another Love Song and Takeo in Noblesse. Another prominent role is Shota Kazehaya in From Me to You, which led fans to give him the nickname Jeong-jae-ha-ya.

Beyond animation, his voice acting spans video games and foreign film dubbing. In video games, he has voiced characters such as Talon and Vladimir in League of Legends, Valerian Mengsk in StarCraft II, Imperius in Diablo III, and Adam in Stellar Blade. His film dubbing work includes providing the Korean voice for Andrew Garfield's Peter Parker in The Amazing Spider-Man and Jeremy Renner's Aaron Cross in The Bourne Legacy.

He has also done narration work for programs like Consumer Report and The World Is Now. In 2015, he won the Foreign Language Dubbing Award at the MBC Drama Awards. His voice has been used for Korean audio guides at major international landmarks, including the Palace of Versailles, the Louvre Museum, and the British Museum. He has also appeared on stage, such as in the 2011 charity play Hyang-dan, Fly.