Cho Jung-seok as Doo-sik

Doh Kyung-soo as Doo-young

Park Shin-hye as Soo-hyun

Kim Kang-hyun as Dae-chang

Ji Dae-han as Director of the National Athletes

Im Cheol-hyung as Old man

Lee Do-yeon as Club

Lee Yeon-su as Doo-sik's Mother

Jung Jae-jin as Super

Ku Hye-ryeong as Officer

Son Mi-hee as Nurse

Bae Seong-jae as Caster

Jung Ji-hoon as Doo-young (young)

Kwon Beom-taek as Guard

Song Yong-sik as Dealer