Kim Dong Jun (김동준; or Dong Jun) is a South Korean singer and actor under MAJOR9. He is a member and maknae of the boy group ZE:A and its subunits ZE:A FIVE and ZE:A J. He made his official solo debut on November 6, 2019 with the mini-album "Alone".
While ZE:A is on hiatus, Dongjun has since then focused on acting. He starred in dramas such as "Black", "Chief of Staff", and "More than Friends".
In July 2021, Dongjun enlisted in the military.