|Actor:||Daniel Dae Kim|
- For the mainstream character of the same name, see Hahn Jun-Seok. For alternate reality characters or other characters with the same name, see Hahn Jun-Seok (mirror), and Hahn Jun-Seok (Pendragon reality).
In 2367, Hahn Jun-Seok was the liaison officer of a starship made to look like the USS Prospect. In reality, he was a clone aboard the USS Des Plaines that went missing two years earlier near the Federation-Tzenkethi border. He was also known as Jim. (Star Trek: The Prospect Chronicles: "The Tzenkethi Incident", "Live to Tell")
- Korean naming conventions list family name first, given names last. His first name is Jun-Seok.