If you don't recognize any of the face claims from the moodboards (courtesy of DaisyDoesNothing), here is a short cast list:

• Hung Hye-bin > Baek Yerin
• So Hyun-joo > Park Jimin*
• In Hwa-young > Summer Soul (Jang Eunsung)
• Chang Hae-young > Ahn Jiyoung
• Wang Hee-jin > Woo Jiyoon
• Kate Fannin > Anna Popplewell

*Not Jimin of BTS, of course