- Birth Name: Lee Dong Hun (이동훈)
- Stage Name: Lee Dong Hun (이동훈)
- Birthday: February 28, 1993
- Position: Main Vocalist
- Height: 176 cm (5'9″)
- Weight: 58 kg (127 lbs)
- Birth Name: Kim Se Yoon (김세윤)
- Stage Name: Wow (와우)
- Birthday: May 15, 1993
- Position: Main Dancer, Rapper, Vocalist
- Height: 176 cm (5'9″)
- Weight: 60 kg (132 lbs)
- Birth Name: Park Jun Hee (박준희)
- Stage Name: Park Jun Hee (박준희)
- Birthday: June 02, 1994
- Position: Leader, Lead Vocalist, Lead Dancer
- Height: 175 cm (5'9″)
- Weight: 58 kg (127 lbs)
- Birth Name: Kim Byeong Kwan (김병관)
- Stage Name: Kim Byeong Kwan (김병관) (Previously known as Jason (제이슨)
- Birthday: August 13, 1996
- Position: Main Dancer, Rapper, Vocalist
- Height: 174 cm (5'8.5″)
- Weight: 57 kg (125 lbs)
- Birth Name: Kang Yu Chan (강유찬)
- Stage Name: Kang Yu Chan (강유찬)
- Birthday: December 31, 1997
- Position: Main Vocalist, Maknae
- Sub-Group: UNB (Formed through the rebooting show 'The Unit'
- Height: 177 cm (5'10")
- Weight: 59 kg (130 lbs)