Lee Dong Hyuk, better known by his stage name Haechan, is the lead vocalist, lead dancer of the SM Entertainment KPOP boy groups NCT 127 and NCT DREAM. He was born in Seoul but moved to Jeju when he was 7 through to the age of 12. Haechan joined SM through the Weekly Audition and his stage name was picked by Lee Soo Man, the CEO of SM entertainment. He was announced as a NCT U member for the STATION X special release, on December 2, 2019.
| Series | I WALK RADIO | 2024 |
| Episode |
어색하지만 괜찮아 Renjun & Doyoung |
2020 |
| Episode |
어색하지만 괜찮아 Renjun & Doyoung Pt.2 |
2020 |
| Episode |
마이 리틀 데이 HAECHAN |
2025 |
| Episode |
Question Bucket 파도파도 코파도 | NCT U 'PADO' |
2023 |
| Episode |
문명특급 313 |
2023 |
| Episode |
WIRED's Autocomplete Interviews NCT 127 Answer the Web's Most Searched Questions |
2022 |
| Episode |
M2 ASMR Awesome Sleep Video for Seasons Jisung & Haechan's Brush Sound ASMR Full Ver. [Tingle Salon] |
2024 |
| Episode |
Daebak Show w/ Eric Nam Ep. #120 | Catching Up: NCT DREAM's JENO, HAECHAN, and JAEMIN |
2021 |
| Episode |
M2 ASMR [Tingle Salon] ASMR Listening to 'NCT DREAM Jisung and Haechan Fight and Make Up?' |
2024 |
| Episode |
The Late Late Show with James Corden Lily Collins, Charles Melton, NCT 127 |
2019 |
| Episode |
어색하지만 괜찮아 Jisung & Winwin |
2020 |
| Episode |
어색하지만 괜찮아 Jisung & Winwin Pt.2 |
2020 |
| Episode |
엠넷 아시안 뮤직 어워드 Unknown |
2021 |
