Reparto (por orden de créditos)
Tiffany Young
Self - Mentor
Sun Mi Lee
Ye-Seo Kang
Self - Contestant
Kep1er
Themselves
Su-yeon Kim
Kim Bo-ra
Self
Nien Tzu Hsu
Da-Yeon Kim
Shim Seung Eun
Do-ah Kim
Jeong Ji-yoon
Jing Zhang
Heo Ji-Won
Yunji Lee
Shana
Chae-Hyun Kim
Kishida Ririka
Hana Hayase
Kotone Kamimoto
Zhou Xinyu
Sakurai Miu
Yurina Kawaguchi
Ziyin Xu
Bahiyyih Huening
Yeo Jin-gu
Yujin
Fu Yaning
Choi Yeyoung