- Korean Name: Choi Yeon Jun (최연준)
- Stage Name: Yeonjun (연준)
- Birthday: September 13, 1999
- Position: Rapper, Vocalist, Dancer
- Nationality: Korean
- Height: 181.5 cm (5'11")
- Weight: 65 kg (143 lbs)
- Blood Type: A
- Korean Name: Choi Soo Bin (최수빈)
- Stage Name: Soobin (수빈)
- Nicknames: Cucumber
- Birthday: December 5, 2000
- Position: Leader, Vocalist
- Nationality: Korean
- Height: 185 cm (6'1″)
- Weight: 69 kg (152 lbs)
- Blood Type: A
- Korean Name: Choi Beom Gyu (최범규)
- Stage Name: Beomgyu (범규)
- Birthday: March 13, 2001
- Position: Vocalist and Dancer
- Nationality: Korean
- Height: 179 cm (5'10")
- Weight: 55 kg (121 lbs)
- Blood Type: AB
- Korean Name: Kang Tae Hyun (강태현)
- Stage Name: Taehyun (태현)
- Birthday: February 5, 2002
- Position: Vocalist
- Nationality: Korean
- Height: 177 cm (5'10")
- Weight: 53 kg (117 lbs)
- Blood Type: A
- Korean Name: Kai Kamal Huening (카이 카말 휴닝)
- Stage Name: Hueningkai (휴닝카이)
- Birthday: August 14, 2002
- Position: Vocalist, Visual, Maknae
- Nationality: Korean-American
- Height: 183 cm (6'0")
- Weight: 61 kg (134 lbs)
- Blood Type: A