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 Ja-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

Park Hyun-woo

Jo Min-guk

Ahn Jang-hyeok

Prologue Commentator

Nam Doh-hyeong

Prologue Announcer

Cho Yong-sun

Director

Kim Chul-jun

Martial Arts Choreographer

Lee Yun-jae

Production Sound Mixer

Park Jun-gyu

Lighting Director

Lee Ah-young

Art Direction

Park Se-jun

Co-Producer

Yoo Young-a

Writer

Cho Yong-sun

Writer

Heo Sun-mi

Editor

Kim Hak-su

Camera Operator

Kim Yu-mi

Production Design

Park Chang-hyun

Producer