Champion [Russian]

Yong-wan Kim

Director

Ma Dong-seok

Mark

Kwon Yul

Jin-Ki

Yeri Han

Soo-JIn

Seung-Hoon Choi

Joon-Yeong (Juvenile)

Ye-Rin Ok

Joon-Hee (Juvenile)

Brutaru Georgel Leontin

Alex

Tim Rixx

Joseph (Alex's Friend)

Ha-Yoon Ahn

Gym Eldest Daughter

Sung-min Ahn

Foreign Car Driver

Sin-Joo Bong

Prison Punch Opponent

Cham-Sarang Choi

Dongdaemun real elder sister

Hye-Jin Choi

Jason Kim's Gang 4

Derek Chouinard

Club goer

Arthur Freeman

Tom

Geum Gwang-san

Combo Team 2

Do-Dam Han

Gym Female Newbie 1

Myung-soo Han

Yoo Chang-soo's Employee 2

In-Beom Heo

First Birthday Party Dad

Yong-wan Kim

Writer