Kim Hyunbin
- 2019: Mnet ‘Produce X 101’ as contestant
- 2020: ‘Sukhumvit Swimming’ MV by ONF
- 2021: ‘Beautiful Beautiful’ MV by ONF
Won Youngwook
- 2020: ‘Sukhumvit Swimming’ MV by ONF
- 2021: ‘Beautiful Beautiful’ MV by ONF
Yun Siyun
- 2018-2019: JTBC2 ‘YG Treasure Box’ as contestant
- 2020: ‘Sukhumvit Swimming’ MV by ONF
- 2021: ‘Beautiful Beautiful’ MV by ONF
New trainee (name unknown)
- 2020: ‘Sukhumvit Swimming’ MV by ONF
- 2021: ‘Beautiful Beautiful’ MV by ONF