No Breathing

Seo In-guk

Jo Won-il

Lee Jong-suk

Jung Woo-sang

Kwon Yu-ri

Jung-eun

Park Cheol-min

Jae-seok

Park Jung-chul

Coach Jang

Yoon Kyun-sang

Yoon Gyun-sang

Shin Min-chul

Jung-dong

Kim Jae-young

Dae-Chan

Sunwoo Jae-duk

Woo-sang's Father

Cho A-young

Se-mi

Jeon Bo-mi

Ha-na

Lee Chang-joo

Woo-hyeon

Park Yong-sik

President of the Association

Kim Young-sun

Woo-sang's Mother

Yang Joon-hyeok

Yang Joon-hyeok

Kim Jung-hak

Reporter Han

Kim Won-hyo

Key Man

Oh In-hye

Female Coach

Nam Da-reum

Young Jung Woo-sang

Yu Seung-yong

Young Jo Won-il