"A former Asian Games record breaker and Olympic tryout, Kim Gwang-su, endures beatings, abuse, and constant ridicule from his swimming coach. To justify this abusive behavior, his coach constantly reminded Gwang-su - this is for your own good."
Yoo Jae-sang
as Joon-ho
Park Hae-jun
as Gwang-soo
Lee Hang-na
as Jung-ae
Choi Moo-seong
as Young-hoon
Jung Ga-ram
as Young Gwang-soo
Yoo Jae-myung
as Coach Park
Kwak Min-seok
as Director Kim
Kim Do-young
as Restaurant Manager
Kang Ae-sim
as Harvard Mother
Oh Dae-hwan
as Wrestling Coach
Kim Min-sik
as Detective
Nam Moon-chul
as Director
Cha Bo-sung
as 1998 Player
Lee Jung-eun
as Owner of Tented Restaurant
Jeon Sung-ho
Set Decoration
Lee Jong-kyeong
Costume Designer
Lim Wang-sub
Martial Arts Choreographer
Yeo Jun-young
Executive Producer
Jung Ji-woo
Producer
Director
Kim Min-ah
Writer
Park Min-sun
Editor
Lee Byung-kwan
Lighting Coordinator
Jung Jin-wook
Production Sound Mixer
Moon Chul-woo
Sound Effects Editor
Lee Sang-hyun
Han Tae-jung
VFX Supervisor
Song Jong-hee
Makeup & Hair
Cho Hyoung-rae
Director of Photography
Choi Eui-young
Costume Design
Im Seong-mi
Art Direction
Yoon Ick-jun
Line Producer
Byun Ki-yun
Production Design
Jeong Hyun-soo
Music
Kim Suk-won
Sound
Kwun Hyun-jeong
Lim Eun-young
Park Young-sik