Ma Dong-seok

Character: Mark

Kwon Yul

Character: Jin-ki

Han Yeri

Character: Soo-jin

Choi Seung-hoon

Character: Joon-hyung

Ok Ye-rin

Character: Joon-hee

Son Sook

Character: Mark's Mother

John D. Michaels

Character: Fight Announcer

Carson Allen

Character: Announcer

Lee Kyu-ho

Character: Punch

Derek Chouinard

Character: Club Goer

No Ji-yoo

Character: Exhibition Hall Reporter

Jeon Gwon-ha

Character: Prison Punch Opponent

Yang Hyun-min

Character: Yoo Chang-soo

Nam Yeon-woo

Character: Team Leader Kim

Kang Shin-hyo

Character: Combo

Kang Seung-hyun

Character: Joo-yun

Park Sun-ho

Character: Jason Kim

Oh Chang-kyung

Character: Event Announcer

Yoo Soon-woong

Character: Doctor Han

Park Hyung-Soon

Character: Chang-soo's Employee

Park Won Bin

Character: Busan MC

Park Seong-il

Character: PD Park

Kim Jong-goo

Character: Jin-gi's Father

Yu Seung-ok

Character: Celebrity

Park Se-jun

Character: Chang-soo's Employee

Choi Hye-jin

Character: Jason Kim's Gang

Park Tae-yun

Character: Soccer Boy

Ahn Sung-min

Character: Foreign Car Driver

Yang Jo-a

Character: English Elementary Student's Mother

Park Chan-woo

Character: Cigarette Student

Park Ji-yeon

Character: Busan Couple

Hwang Sang-kyung

Character: Busan Couple

Kwak Ja-hyung

Character: Macho Driver

Yoon Eun-ji

Character: Gambling Joint Cashier

Jeon Hye-won

Character: High School Student

Baek Sang-hee

Character: Airport Greeting Woman

Kim Dong-hyun

Character: Celebrity

Yoo Ji-yeon

Character: Sun-kyeong's Sister

Park Kwang-jae

Character: 2 Meter Giant

Kim Ji-hwan

Character: Child on Bus

Kim Geon

Character: Busan Arm Wrestling Elementary School Student

Jin Mo

Character: Combo Team Member 1

Geum Gwang-san

Character: Combo Team Member 2

Lee Su-jeong

Character: Cashier