To celebrate their fifth debut anniversary, the I.O.I members reunited for a highly anticipated live broadcast!
| Actor | Role |
|---|---|
 Jeon SomiSelf | Self |
 Kim Se-jeongSelf | Self |
 Choi Yoo-jungSelf | Self |
 Chung HaSelf | Self |
 Kim So-hyeSelf | Self |
 Zhou JieqiongSelf | Self |
 Jung Chae-yeonSelf | Self |
 Kim Do-yeonSelf | Self |
 Kang Mi-naSelf | Self |
 Im Na-youngSelf | Self |
 YeonjungSelf | Self |