Hwang Jung-min as Seo Do-cheol

Jung Hae-in as Park Sun-woo

Oh Dal-su as Oh Jae-pyeong

Oh Dae-hwan as Wang Dong-hyun

Jang Yoon-ju as Bong Yoon-ju

Kim Si-hoo as Yoon Shi-young

Jin Kyung as Lee Joo-yeon

Shin Seung-hwan as Park Seung-hwan

Jeong Man-sik as Jeon Seok-woo

Kwon Hae-hyo as Choi Wan-ki

Byun Hong-jun as Seo Woo-jin

Tue Minh as Tue

Ahn Bo-hyun as Min Kang-hoon

Huh Joon-ho as Kang Hang-jo

Hyun Bong-sik as Ddeokchil

Kim Jae-hwa as Madam

Park Jun-myun as Gambling Group

Park Kyung-hye as Gambling Group

Joo Bo-bi as Gambling Group

Kim Won-hae as Former Team Leader

Park Myung-shin as School Principal

Ahn Sang-tae as Dean of Students

Woo Jeong-won as Chi-hoon's Mother

Jo Kwan-woo as Chi-hoon's Father

Kim Min-su as MC Wrecka

Seo Young-joo as Fake Haechi

Heo Nam-jun as Detective

Nam Jin-bok as Police

Yun Jun-yeol as Shin Chi-hoon

Hwang In-mu as Fire Fist TV

Kim Han-sol as Reporter