24K currently consists ofKisu, Jeonguk, Changsun, Jinhong, Hongseob and Kiyong. 24K debuted on September 6, 2012, under Choeun Entertainment.

Stage Name: Kisu/기수
Real Name: Choi Kisu/최기수

Birthday: October 2, 1990
Blood Type: B
Height: 178 cm
Weight: 60 kg
Position in group: Main Vocalist
Languages: Korean, Mandarin
Hobbies: watching movies, playing the piano and bowling
Siblings: older brother
Education: Baekseok Arts University

Currently fulfilling his military service

Stage Name: Jeonguk/정욱
Real Name: Kim Jeonguk/김정욱
Birthday: March 20, 1993
Birthplace: Busan, South Korea
Blood Type: A
Height: 178 cm
Weight: 58 kg
Position in group: Main Rapper, Main Dancer
Languages: Korean
Siblings: older brother

Stage Name: Changsun/창선
Real Name: Lee Changsun/이창선

Birthday: March 17, 1996
Height: 177 cm
Weight: 58 kg
Position in group: Lead Dancer, Vocalist
Languages: Korean
Siblings: older sister
Education: Gukje University, Major in Dance

Stage Name: Jinhong/진홍
Real Name: Kim Jinhong/김진홍
Birthday: January 2, 1998
Birthplace: 
Blood Type: O
Height: 179 cm
Weight: 61 kg
Position in group: Lead Vocalist, Lead Dancer, Visual
Languages: Korean

Stage Name: Hongseob/홍섭
Real Name: Shim Hongseob/심홍섭
Birthday: January 8, 1998
Birthplace: 
Blood Type: 
Height: 177 cm
Weight: 60 kg
Position in group: Lead Dancer, Vocalist
Education: Gukje University, Major in Dance
Siblings: older brother & sister