Stage Name: BX/ Byounggon 
Birth Name: Lee Byoung Gon 
Position: Leader, Main Rapper, Vocalist
Birthday: March 5th, 1998

Stage Name: Seunghun 
Birth Name: Kim Seung Hun 
Position: Main Vocalist, Lead Dancer
Birthday: February 26th, 1999

Stage Name: Yonghee 
Birth Name: Kim Yong Hee 
Position: Vocalist, Visual
Birthday: February 17th, 2000

Stage Name: Bae Jinyoung 
Birth Name: Bae Jin Young 
Position: Lead Vocalist, Lead Dancer, Center, Face of the Group
Birthday: May 10th, 2000

Stage Name: Hyunsuk 
Birth Name: Yoon Hyun Suk
Position: Main Dancer, Lead Rapper, Vocalist, Maknae
Birthday: September 8th, 2001