| Birth Name | Boo Seung-kwan (부승관) |
| Stage Name | Seungkwan (승관) |
| Birthday | January 16, 1998 |
| Nationality | Korean |
| Height | 174 cm |
| Weight | 58 kg |
| Blood Type | B |
| MBTI | ENFP |
| Group | SEVENTEEN |
| Company | PLEDIS Entertainment |
| Position | Main Vocalist, Face of the Group |
| Zodiac Sign | Capricorn |
| Chinese Zodiac Sign | Ox |
| Representative Emoji | 🍊 |