- Hyun-woo Joo
- One Punch
- Jo Han-sun
- High Kick
- Baek Jong-hak
- (as Jong-hak Baek)
- Moon Won-ju
- Potbelly wrestler
- Park Yeong-gyu
- Mr. Park
- Jung Chan-Su
- Jung Chan-Suk
- Lee Do-Gyu
- Lee Do-Gyum
- Kim Do-Yeon
- Girl In Memories
- Lee Do-Young
- Zzang-Dol
- Cho Duk-Hyu
- Cho Duk-Hyun
- Na Hae-R
- Na Hae-Ri
- Jae-hoon Han
- National soccer team coach
- Jung Ji Ho
- Mangchi Gang Member #3
- Jung Jae Hoon
- Video Game Addict
- Lee Hyeon-ji
- Myeong-rang - female student
- Ji Hyun-Wo
- Ji Hyun-Woo
- Ji Hyun-Woo
- One Punch
- Chan-seok Jeong
- Man on bicycle
- Jae-Hoon Jeong
- Yaburi
- So Jeong
- Luxury
- Lee Hyun Ji
- Myung Rang
- Park Ji-yeon
- Girl In Memories
- Seo Jin-won
- Myeong-rang's Father
- Kim Jung-Woon
- Motorcycle gang member 2
- Tae-hun Kim
- Motorcycle gang member 3
- Lee Won Koo
- Motorcycle Gang Member
- Yong-woon Kwon
- Night Manager
- Kang Kyoug-Deo
- Kang Kyoug-Deok
- Hwang Sang Kyung
- Motorcycle Gang Member
- Cheol-yong Lee
- Assistant director
- Ho-yeon Lee
- Escort bus driver
- Jeong-im Lee
- Woman helping wheelchair
- Seung-hak Lee
- National soccer team player
- Seung-ro Lee
- Dong-hyang Daily reporter
- Kyeong-ho Lim
- On-site editor
- Lee Yoo Mi
- Lee Yoo Mi
- Lee Mi-Do
- Lee Mi-Do
- Baek Jong Min
- Jjang Dol
- Lee Myeong-ho
- Pal-Bong
- Jae-min Ryu
- Mushroom
- Kim Sang-Ji
- Kim Sang-Jin
- Park Sang-Myeon
- Mang-Chi
- Park Sang-Myu
- Park Sang-Myun
- Park Sang-myun
- Mang Chi
- Kim Seon-A
- Self
- Son Seon-geun
- Middle-aged man
- Kang Seung-Wa
- Kang Seung-Wan
- Kang Seung-wan
- Prison officer
- Seung-hun Sin
- Surprise man
- Lee So-jung
- Luxury - Special appearance
- Kim Soo-Ro
- Harei
- Jang Kyug Su
- Mangchi Gang Member #4
- Tu-in Tak
- Beol-gu
- Tak Te-In
- Beol-Gu
- Tak Teu-I
- Tak Teu-In
- Tak Teu-in
- Beol Gu
- Lee Won-gu
- Motorcycle gang member 4
- Moon Won-J
- Moon Won-Ju
- Yang Won-seok
- (as Won-seok Yang)
- Park Sang Woo
- Park Sang Wook
- Park Yeong-Gy
- Park Yeong-Gyu
- Jo Yeong-Mi
- Jo Yeong-Min
- Kim Chan Yi
- (as Chan-i Kim)
- Kwon Yong-Hoon
- Narrator Manager
- Kim Yoon-Sun
- Kim Yoon-Sung
- Kim Yoon-sung
- Leader, Motorcycle Gang
- Park Jin Young
- One Punch's Father
- Park Young-Kyu
- Mr. Park
- Yoon Young-kyun
- Motorcycle gang member 5
- Seung-wu Yu
- Table producer
- Yong-ju Yu
- In-sang
