Champion
A former arm-wrestling champion raised in the U.S. returns to South Korea for a tournament that could return him to glory, but he finds his life complicated by the appearance of the biological family he never knew.
Don Lee
Mark
Kwon Yul
Jin-ki
Han Yeri
Soo-jin
Choi Seung-hoon
Joon-hyung
Ok Ye-rin
Joon-hee
Son Sook
Mark's Mother
John D. Michaels
Fight Announcer
Carson Allen
Announcer
Lee Kyu-ho
Punch
Derek Chouinard
Club Goer
No Ji-yoo
Exhibition Hall Reporter
Jeon Gwon-ha
Prison Punch Opponent
Yang Hyun-min
Yoo Chang-soo
Nam Yeon-woo
Team Leader Kim
Kang Shin-hyo
Combo
Kang Seung-hyun
Joo-yun
Park Sun-ho
Jason Kim
Oh Chang-kyung
Event Announcer
Yoo Soon-woong
Doctor Han
Park Hyung-Soon
Chang-soo's Employee
Park Won Bin
Busan MC
Park Seong-il
PD Park
Kim Jong-goo
Jin-gi's Father
Yu Seung-ok
Celebrity
Park Se-jun
Chang-soo's Employee
Choi Hye-jin
Jason Kim's Gang
Park Tae-yun
Soccer Boy
Ahn Sung-min
Foreign Car Driver
Yang Jo-a
English Elementary Student's Mother
Park Chan-woo
Cigarette Student
Park Ji-yeon
Busan Couple
Hwang Sang-kyung
Busan Couple
Kwak Ja-hyung
Macho Driver
Yoon Eun-ji
Gambling Joint Cashier
Jeon Hye-won
High School Student
Baek Sang-hee
Airport Greeting Woman
Kim Dong-hyun
Celebrity
Yoo Ji-yeon
Sun-kyeong's Sister
Park Kwang-jae
2 Meter Giant
Kim Ji-hwan
Child on Bus
Kim Geon
Busan Arm Wrestling Elementary School Student
Jin Mo
Combo Team Member 1
Geum Gwang-san
Combo Team Member 2
Lee Su-jeong
Cashier