- Birth Name: Lee Dong Hyuck (이동혁)
- Birthday: June 6, 2000
- Blood Type: AB
- Height: 175 cm (5’9″)
- Place of Birth: Jeju, South Korea
- Position: Lead Vocalist, Lead Dancer, Maknae
- Stage Name: Haechan (해찬)
- Zodiac Sign: Gemini
aug 18 2017 ∞
aug 18 2017 +
aug 18 2017 +