Stage Name: SEUNGKWAN (승관)
Birth Name: Boo Seung Kwan (부승관)
Position: Main Vocalist
Birthday: 16 January 1998
Zodiac sign: Capricorn
Nationality: Korean
Hometown: Jeju-do, South Korea (but was born in Busan)
Height: 174 cm (5’8.5″)
Weight: 58 kg (128 lbs)
Blood Type: B
MBTI Type: ENTP (2022 – taken by the members) / ENFP (2019 – taken by himself) 
Gender: Male 
Language: Korean-English || Seventeen Members: Seungcheol, Jeonghan, Joshua, Jun, Hoshi, Wonwoo, Woozi, Minghao, Mingyu, DK, Seungkwan, 