Jaejun (IN A MINUTE/TAN) Profile and Facts
Jaejun (재준), formerly known as Marcus (마커스) is a member of the groups IN A MINUTE and TAN. It is unclear if he’s still part of JT&MARCUS. He is also an actor.
He is a former member of C-CLOWN under the stage name Maru and of TREI.
Stage Name: Jaejun (재준) Formerly Marcus (마커스)
Birth Name: Lee Jaejun (이재준)
Birthday: September 25, 1997
Zodiac Sign: Libra
Chinese Zodiac Sign: Ox
Height: 175 cm (5’8″)
Weight: 60 kg (132 lbs)
Blood Type: A
MBTI Type: ENFP
Nationality: Korean
Instagram: @jjun_0925
Jaejun Facts:
– He was born in Cheongju, Chungcheongbuk-do, South Korea.
– He has 2 sisters.
– Nickname(s): Black Bear, 흑돌 (dark-skin idol).
– His role model is Jay Park.
– Shortly before TREI’s disbandment he had to work part-time to pay for the group’s living expenses.
– He is friend with OMEGA X‘s Hangyeom.
– He has a clothing brand called ONIII.
– Jaejun is also working as a music producer.
– His specialty is acrobatics.
– When he’s stressed he works out.
– His favorite color is black.
– The last thing he wants to eat in the world is the world’s most expensive dish.
– Jaejun loves salty food, and food that have a strong taste.
– His favorite drink is caramel macchiato.
– He likes comedy movies.
Career:
– He used to be a child actor, acting in the Tale of Nine-Tailed 1938 (2003).
– He trained for 9 years. (Cumulated)
– He is a former Banana Culture trainee.
– In 2012, he debuted with C-CLOWN under the stage name Maru. They disbanded the same year.
– He is a former member of TREI.
– In 2021, Marcus debuted as a member of the duo JT & Marcus under MLD Entertainment.
– He was a contestant on MIXNINE where he was eliminated in the final episode.
– He ranked 5th place in Extreme Debut: Wild Idol making it to the line-up of TAN.
– Jaejun came back to acting with the BL series ‘CityBoy_Log’ (2023), and continued to star in it until the Vacation season (2025).
– He participated in producing and composing the OST of ‘Jazz for, Two’ (2024).
– TAN’s contract expired on July, 2024 but the members hope to reunite in the future. Following fellow member Taehoon’s announcement that he is retiring from the music industry, it appears unlikely that TAN will promote as a group again.
– He, TAN‘s Hyunyeop and JT held a fanmeeting in October 2024, under the name In A Minute.
– He, Hyunyeop and JT (under his real name Juntae) officially redebuted in In A Minute under M.O.M Entertainment, formerly known as jwin entertainment in March, 15, 2025.
– He parted ways with MLD Entertainment in August 2025.
– He continued acting in several dramas such as FC Sold Out (2025), and The Lie we lived in (2026).
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– Kprofiles.com
Profile made by Louu
Related: TAN Profile
JT&MARCUS Profile
C-CLOWN Profile
TREI Profile
Do you know any other facts about Jaejun/Marcus? Are you a fan of him? Comment below! 🙂
