Master Kim
Shin Hyun-joon
Choi Sung-kook
Tattoo
Moon Won-ju
Ddolmanyi
Baek Bong-ki
Master Kim (Caméo)
Tak Jae-hoon
Doryung
Kwon Oh-Min
Kwon Oh-joong
Yeon-Sil
Oh Seung-hyun
President Park of Moorimgak
Noh Joo-hyun
Nakamura
Jeong Jun-ha
Triplet #1
Lee Han-wi
Triplet #2
Park Cheol-min
Triplet #3
Kim Byung-man
Boss
Cho Won-hee
Executive Producer
Chung Tae-won
Martial Arts Choreographer
Baek Kyung-chan
Editor
Kim Sun-min
Director
Park Seong gyun
Writer
Kim Mi-young
Production Design
Lee Jung-woo
Fight Choreographer
Jeon Yu-jun
Costume Design
Han Myeong-suk