Youn Yuh-jung as Gye-choon

Kim Go-eun as Hye-ji

Kim Hee-won as Seok-ho

Shin Eun-jung as Myeong-ok

Yang Ik-june as Choong-seop

Minho as Han-yi

Ryu Jun-yeol as Cheol-heon

Park Min-ji as Min-hee

Nam Tae-boo as Choong-hee

Kim Dae-myung as Fitness Trainer

Kim Seo-hyeon as Judge

Choi Moon-kyoung as