- Do Ji-Won
- Ha-eun
- Kim Byeong-cheol
- Gye Sung-ha
- Sulli Choi
- Gwak Chun-sim
- Lim Dae-il
- (as Dae-il Lim)
- Son Hyeon-ju
- Soo-hyeon
- Kim Ji-wan
- Park Sung-yeon
- Lee Joo Shil
- Ha-eun's mother
- Son Kwang-eop
- Joo-Chang's coach
- Kim Kwang-sik
- Ha-eun's father
- Sang-uk Park
- Joo-chang
- Park Sang-wook
- Kwak Joo-chang
- Song Yeong-jae
- (as Yeong-jae Song)
