- Lim Seung-Jun - Wool Peu [Gangster]
- Jeon No-min - Hwang Chung Seong
- ??? - Kang Yeo Jin [Cheol Woong's mother]
- Song Tae-yoon - Kim Kil Soo
- Han Jae-yeong - Yeom Kwang Tak
- ??? - Go Won Geun
- ??? - Choi Young Sik [Choel Woong's father]
- ??? - Go Poong Ho
- Lee Kyo Yeob - Son Soo Gong
- Jang Young-hyeon - Yoo Young Pil
- Shin Yoon Ha - Lee Jeong Ok [Doo Hak's younger sister]
- Jang Da-kyung - Ma Chung Ja
- Ahn Dong Yeob - Jo Seon Woo
- ??? - Jang Jang Deuk
- ??? - Song Yeon Joo
- Ha Hye-seung - Kyung Ja [Housekeeper]
- In Seong-ho - Kim Young Sung
- Park No-shik - [Projectionist]
- Lee Jin-mok - [High school teacher]
- Ahn Soo-ho - [Hired protestor]
- Kim Joon-hyung - [Gangster]
- Lee Moo-nyoung - [Factory manager]
- Won Choon-gyu - [Businessman]
- Han Sang-chul - [Tickets buyer]
- Lee Byeong-cheol - [Doctor]
- Seo Beom-sik - Byun Hak Soo [CEO]
- Kim Jin-man - [Choong Sung's subordinate]
- Seo Gwang-jae - Lee Joon Shik [Police chief]
- Kim Jung-soo - Na Yak Kwon [Doctor]
- Shin Yeon-sook - [Cheol Woong's ex-babysitter]
- Jung Jae-won - CEO Yoon
- Kim Bi-joo - Chae Ha Yeon
- Kim Byung Gi - Chae Dong Pal
- Jung Bo-min - Geum Yeon Hee
- Moon Jung-dae - Geum Man Cheol [Chairman]
- Park Sang-hyeok - [Lee Doo Hak's friend]
- Lee Myung-ho - Kim Wan Ki
- ??? - Chief Choi Jong Jin
- Shim Jae-Hyun - Kim Sung Yeob
- Yoon Tae-in - Shin Sik
- Yoon Sung-Shik
- Han Hee
- Jung Hyung-soo
??? hace el papel de Lee Doo-hak.
Seol In-a hace el papel de Oh Jung-jin / Sophia.
??? interpreta a Choi Cheol-woong en la serie.
Kim Myung-soo hace el papel de Lee Joong-ho.
So Hee-jung interpreta a Mrs Jung-am en la serie.
Kang Ji-eun interpreta a Cha Geum-ok en la serie.
?? interpreta a Ham Yang-ja en la serie.
Do Sang-woo hace el papel de Kim Hyung Joo.
??? interpreta a Oh Man Ok en la serie.
Lim Seung-Jun interpreta a Wool Peu [Gangster] en la serie.
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