Stage Name: Ohyul (오율)
Birth Name: Kwon Oh Yul (권오율)
Position(s): Leader
Birthday: January 21, 2006
Zodiac Sign: Aquarius
Chinese Zodiac Sign: Rooster
Height: 182 cm (5’11″)
Weight: N/A
Blood Type: O
MBTI Type: ISTP
Nationality: Korean

Stage Name: Ryul (률)
Birth Name: Kim Ryul (김률)
Position(s): Main Rapper
Birthday: September 18, 2006
Zodiac Sign: Virgo
Chinese Zodiac Sign: Dog
Height: 180 cm (5’11″)
Weight: N/A
Blood Type: AB
MBTI Type: ISTJ
Nationality: Korean

Stage Name: Woojin (우진)
Birth Name: Jung Woojin  (정우진)
Position(s): Composer
Birthday: March 8, 2008
Zodiac Sign: Pisces
Chinese Zodiac Sign: Rat
Height: 177 cm (5’9.7″)
Weight: N/A
Blood Type: A
MBTI Type: ISTP
Nationality: Korean

Stage Name: Louis (루이)
Birth Name: Louis Elliot Jourdain Lim
Korean Name: Lim Ji Ho (임지호)
Position(s): Main Vocalist, Maknae
Birthday: May 1, 2010
Zodiac Sign: Taurus
Chinese Zodiac Sign: Tiger
Height: 186 cm (6’2″)
Weight: N/A
Blood Type: B
MBTI Type: INFJ
Nationality: Korean-French