| Birth Name | Lee Dong Hyeok (이동혁) |
| Stage Name | Haechan (해찬) |
| Birthday | June 6, 2000 |
| Height | 174 cm |
| Weight | 58 kg |
| Blood Type | AB |
| MBTI | ESTP (his previous results were ENFP, INFP) |
| Group | NCT |
| Company | SM Entertainment |
| Position | Vocalist, Dancer * |
| Zodiac Sign | Gemini |
| Representative Emoji | 🐻 |