X1 (엑스원)
- Debut (Y.M.D): 19.08.27
- Latest Album Released (Y.M.D): 19.08.27
- Label: Swing Entertainment
- Music Videos (Official Videos): Flash
- Discography: Quantum Leap (비상: Quantum Leap)
- Fan Club: One It
- Symbol:
OFFICIAL SITES:
MEMBERS:
- Name (Real Name): Seung Woo (Han Seung Woo)
- Hangul: 승우
- Position: Leader
- Birthday (Y.M.D): 94.12.24
- Nationality: Korean
- Height: 184cm (6ft)
- Weight: 63kg (139lbs)
- Blood Type: B
- Sub-Unit: N/A
- Company*: Play M [Plan A]
- Currently in*: Victon
- Name (Real Name): Seung Youn (Cho Seung Yeon)
- Hangul: 승연
- Position: Rap, Vocal
- Birthday (Y.M.D): 96.08.05
- Nationality: Korean
- Height: 180cm (5ft 10in)
- Weight: 65kg (143lbs)
- Blood Type: O
- Sub-Unit: N/A
- Company*: Yuehua Entertainment
- Currently In*: UNIQ, Solo
- Name (Real Name): Woo Seok (Kim Woo Seok)
- Hangul: 우석
- Position: Vocal
- Birthday (Y.M.D): 96.10.27
- Nationality: Korean
- Height: 175cm (5ft 8in)
- Weight: 55kg (121 lbs)
- Blood Type: B
- Sub-Unit: N/A
- Company*: TOP Media
- Currently In*: UP10TION as Wooshin, Solo
- Name (Real Name): Yo Han (Kim Yo Han)
- Hangul: 요한
- Position: N/A
- Birthday (Y.M.D): 99.09.22
- Nationality: N/A
- Height: 181cm (5ft 11in)
- Weight: 66kg (146lbs)
- Blood Type: B
- Sub-Unit: N/A
- Company*: OUI Entertainment
- Currently in*: WEi
- Name (Real Name): Han Gyul (Lee Han Gyeol)
- Hangul: 한결
- Position: Vocal
- Birthday (Y.M.D): 99.12.07
- Nationality: N/A
- Height: 177cm (5ft 9in)
- Weight: 65kg (143lbs)
- Blood Type: A
- Sub-Unit: N/A
- Company*: MBK Entertainment
- Formerly of*: IM
- Currently in*: BAE173
- Name (Real Name): Jun Ho (Cha Jun Ho)
- Hangul: 준호
- Position: N/A
- Birthday (Y.M.D): 02.07.09
- Nationality: N/A
- Height: 178cm (5ft 10in)
- Weight: 63kg (138lbs)
- Blood Type: A
- Sub-Unit: N/A
- Company*: Woolim Entertainment
- Currently in*: Drippin
- Name: Dong Pyo (Son Dong Pyo)
- Hangul: 동표
- Position: N/A
- Birthday (Y.M.D): 02.09.09
- Nationality: N/A
- Height: 166cm (5ft 5in)
- Weight: 48kg (106lbs)
- Blood Type: O
- Sub-Unit: N/A
- Company*: DSP Media
- Currently in*: Mirae
- Name (Real Name): Min Hee (Kang Min Hee)
- Hangul: 민희
- Position: N/A
- Birthday (Y.M.D): 02.09.17
- Nationality: N/A
- Height: 182cm (5ft 11in)
- Weight: 60kg (132lbs)
- Blood Type: AB
- Sub-Unit: N/A
- Company*: Starship Entertainment
- Currently in*: Cravity
- Name (Real Name): Eun Sang (Lee Eun Sang)
- Hangul: 은상
- Position: N/A
- Birthday (Y.M.D): 02.10.26
- Nationality: N/A
- Height: 179cm (5ft 10in)
- Weight: 63kg (138lbs)
- Blood Type: A
- Sub-Unit: N/A
- Company*: Brand New Music
- Currently*: Solo
- Name (Real Name): Hyeong Jun (Son Hyeong Jun)
- Hangul: 혁준
- Position: N/A
- Birthday (Y.M.D): 02.11.30
- Nationality: N/A
- Height: 174cm (5ft 8in)
- Weight: 55kg (121 lbs)
- Blood Type: A
- Sub-Unit: N/A
- Company*: Starship Entertainment
- Currently in*: Cravity
- Name (Real Name): Do Hyon (Nam Do Hyeon)
- Hangul: 도현
- Position: Maknae
- Birthday (Y.M.D): 04.11.10
- Nationality: N/A
- Height: 180cm (5ft 10in)
- Weight: 62kg (136lbs)
- Blood Type: O
- Sub-Unit: N/A
- Company*: MBK Entertainment
- Currently in*: BAE173