cast
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Yu Oh-seong
Joon-seok
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Jang Dong-gun
Dong-soo
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Seo Tae-hwa
Sang-taek
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Jung Woon-taek
Jeong-ho
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Kim Bo-kyung
Jin-sook
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Ki Joo-bong
Mustache
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Joo Hyun
Joon-seok's Father
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Jeon Young-woon
Dong-soo's Father
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Lee Jae-yong
Scar-Eye
- Kim Hyun-ji Tall Woman
- Yoo Seung-il Child Joon-seok
- Jeong Hee-ryong Child Dong-soo
- Kim Joon-beom Child Sang-taek
- Kim Seong-bok Child Joong-ho
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Kang Shin-il
Sang-taek's Father
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Kwon Nam-hee
Sang-taek's Mother
- Park Nam-hee Joon-seok's Mother
- Lee Eun-joo Sin-ae
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Kim Jung-tae
Doruko
- Yoo Byeong-seok Small Guy
- Kim Gi-yong Jjang-ga
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Jung Ho-bin
Eun-gi
- Yang Joong-kyung English Teacher
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Kim Kwang-kyu
Math Teacher
- Kim Gi-ho Cowardly Gangster
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Hong Seok-yeon
Security Guard
- Ahn Chang-gook Man with Gold-framed Glasses
- Jo Yong-won Beauty
- Kim Hoon Doruko's Henchman
- Jo Soo-jin Member of Rainbow
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Lee Se-na
Member of Rainbow
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Kim Hyun-sook
Member of 7 Princess
- Jang Gi-hoon Small Guy's Mob
- Kim Yeong-heon Joon-seok's Driver
- Seo Byeong-do Vice President
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Kim Jun-hee
Trans
- Park Hyo-jin Theater Advertisement
- Park Yong-chan Buckle Student
- Im Ji-moon Triangle Student
- Kim Tae-won Gangster from the Trunk
- Kim Seong-hwa Arresting Policeman
- Bae Won-yeong MC Student
- Lee Dong-wook Student from the Shaolin Temple
- Kim Po Mustache's Henchman
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Ji Dae-han
Scar-Eye's Shadow
- Cha Jin-ho Bunting Student
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Kim Ji-hoon
Weekly Duty Student
- Kim Moon-bin Student
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Kim Jung-woon
Doruko's Younger Brother
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Kim Yun-tae
Dong-soo's Henchman
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Chang Yun
Dong-soo's Henchman
- Moon Woon-bong Dong-soo's Henchman
- Son Byung-hee Dong-soo's Henchman
- Yang Ji-woong Waiter
- Lee Kyeong-ha Bar Girl
- Hwang Joo-hyeon Bar Customer
- Choi So-i Female Employee
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Yoo Sang-seob
Jaws
- Lee Ji-yeon Female Employee at Wedding Hall
- Sun Ho-jin Young Man with Umbrella
- Kim Jae-hyeon High School Boy
- Oh Seung-chan Court Prosecutor
- Jeong Jong-seop Court Lawyer
- Park Chan-young Judge
- Kim Sung-nyeo Bus Conductor
- Jo Joon-baek Employee at Construction Site
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Cho Yong-won
Beauty