Lee Joon: The Versatile Evolution of a K-Pop Idol to Acclaimed Actor
From the high-energy stages of K-pop to the intense emotional depth of prestige television, Lee Joon (born Lee Chang-sun) has undergone one of the most successful career transformations in the South Korean entertainment industry. Originally rising to fame as a member of the boy band MBLAQ, he has since redefined himself as a respected actor, host, and multi-talented entertainer.
Born on February 7, 1988, in Seoul, South Korea, Lee Joon's journey began with a foundation in dance and music. His ability to transition between genres and mediums has made him a mainstay in both the music and television landscapes.

Key Facts
- Real Name: Lee Chang-sun (이창선)
- Professional Debut: 2008 (Acting/CFs); 2009 (Music with MBLAQ)
- Musical Roots: Former member of the quintet MBLAQ
- Notable Acting Works: The Silent Sea, Bulgasal: Immortal Souls, and My Father Is Strange
- Current Roles: Cast member of 2 Days & 1 Night and host of the YouTube series Workman
- Education: Korea National University of Arts (Modern Dance) and Kyung Hee Cyber University
Musical Beginnings with MBLAQ
Lee Joon's path to stardom was paved through rigorous training under Rain and J. Tune Entertainment. He debuted on October 9, 2009, as a vocalist and main dancer for the quintet MBLAQ. The group made an immediate impact, performing at Rain's 'Legend of Rainism' concert and releasing their debut single album, Just BLAQ, shortly after.
MBLAQ's success extended beyond South Korea. In May 2011, the group made their Japanese debut, where their single "Your Luv" reached the top of the Oricon Daily Charts. Even after his transition to acting, Lee maintained his musical connection, releasing the solo pop ballad "What I Want to Give to You" in 2017, written by his former bandmate Thunder.

A Transition to Award-Winning Acting
While many idols struggle to find footing in serious drama, Lee Joon embraced the challenge early. His acting career saw significant milestones through various genres:
Early Roles and Breakthroughs
In 2010, he appeared in the youth drama Jungle Fish 2. However, it was his 2013 role in the film Rough Play that truly signaled his arrival as a serious actor. Despite the film's provocative nature, his performance earned him the Best Male Newcomer award at the 1st Wildflower Film Awards and nominations at the prestigious Baeksang Arts Awards.
Television Success and Global Recognition
Lee Joon has become a familiar face on both domestic and international streaming platforms. His filmography includes:
- Heard It Through the Grapevine (2015): A black comedy drama that earned him accolades at the Korea Drama Awards and APAN Star Awards.
- My Father Is Strange (2017): A highly popular KBS2 weekend family drama.
- The Silent Sea (2021): A Netflix Original sci-fi thriller.
- Bulgasal: Immortal Souls (2021): A fantasy series on tvN and Netflix.
- Bloody Heart (2022): A historical drama where he portrayed Lee Tae, the King of Joseon.
Diversified Career: Radio and Variety
Beyond scripted drama, Lee Joon has showcased his personality through hosting and variety shows. In 2019, he took on the role of radio DJ for Lee Joon's Youngstreet on SBS Power FM. More recently, he has expanded into digital media, hosting the popular YouTube web series Workman and joining the cast of the long-running variety show 2 Days & 1 Night.
Career Summary
| Period | Primary Occupation | Key Projects/Details |
|---|---|---|
| 2008–2009 | Actor/Trainee | CFs, Ninja Assassin (Teenage Raizo) |
| 2009–2014 | Singer (MBLAQ) | Vocalist and Main Dancer; Japanese debut |
| 2013–Present | Actor | Rough Play, The Silent Sea, Bloody Heart |
| 2019–Present | Host/Entertainer | Workman, 2 Days & 1 Night |
Frequently Asked Questions
What was Lee Joon's role in MBLAQ?
Lee Joon served as a vocalist and main dancer for the South Korean boy band MBLAQ during their active years from 2009 to 2014.
How did Lee Joon transition from music to acting?
He began taking acting roles while still active in music, including a role in the film Ninja Assassin (2009) and the drama Jungle Fish 2 (2010), eventually focusing on acting full-time after his departure from MBLAQ.
Has Lee Joon won any acting awards?
Yes, he won Best Male Newcomer at the 1st Wildflower Film Awards for his role in Rough Play and received accolades at the 8th Korea Drama Awards and 4th APAN Star Awards for Heard It Through the Grapevine.
What is Lee Joon's current work in variety television?
He is currently a cast member of the popular show 2 Days & 1 Night and serves as the host for the YouTube series Workman.
Did Lee Joon serve in the military?
Yes, Lee Joon completed his mandatory military service, serving as a public service officer after being transferred from active duty due to panic disorder. He was discharged on December 19, 2019.