Doubtful Victory

Details

 * Title: 의문의 일승 / Uimunui Ilseung
 * Also known as: Questionable Start; Oh, the Mysterious
 * Genre: Thriller, comedy
 * Episodes: 40
 * Broadcast network: SBS
 * Broadcast period: 2017-Nov-27 to 2018-Jan-30
 * Air time: Monday & Tuesday at 22:00 (2 episodes back-to-back)

Synopsis
Il Seung was wrongly accused of a crime and imprisoned, and has spent ten years on death row. He manages to break out of prison and somehow becomes a fake cop, then sets out to find a hidden stash of 100 billion won (nearly 100 million dollars) on behalf of criminals who will supply him with a new identity upon receipt. He has three days to find the cash and begin his new life.

Cast

 * Seoul Metropolitan Police Agency
 * Yoon Kyun Sang as Oh Il Seung (28, officer)/ Kim Jong Sam (28, convict)
 * Yoon Chan Young as teen Jong Sam
 * Kim Kang Hoon as child Jong Sam
 * Jung Hye Sung as Jin Jin Young (28, lieutenant)
 * Shin Yi Joon (신이준) as teen Jin Young
 * Kim Hee Won as Park Soo Chil (45, inspector)
 * Do Ki Suk as Kim Min Pyo (36, sergeant)
 * Kang Shin Hyo as Kwon Dae Woong (31, officer)
 * Choi Won Young as Jang Pil Sung (48, senior superintendent)
 * Im Hyun Sik as Jo Man Suk (60, inspector)
 * Institute for Future Economics
 * Jun Gook Hwan as Lee Kwang Ho (65, director)
 * Kim Young Pil as Ahn Tae Jung (45, lawyer/ex-prosecutor)
 * Food Company
 * Yoon Yoo Sun as Gook Soo Ran (50, president director)
 * Park Sung Geun as Kwak Young Jae (43, department head)
 * Oh Seung Hoon as Ki Myun Joong (27, deputy)
 * Kim Dong Won (김동원) as Baek Kyung (30, violent ex-convict)
 * Extended Cast
 * Jang Hyun Sung as Kang Chul Ki (48, ex-detective)
 * Jun Sung Woo as Ttak Ji/Geum Byul (26)
 * Kim Hyun Bin as teen Geum Byul
 * Kim Ye Joon as child Geum Byul
 * Kim Da Ye as Cha Eun Bi (21, Ttak Ji's younger sister)
 * Ok Ye Rin as child Eun Bi
 * Jun Ik Ryung as Han Cha Kyung (34, Park Soo Chil's wife)
 * Yoon Bok In as Yoo Kwang Mi (55, Jin Young's mother)
 * Choi Dae Hoon as Kim Yoon Soo (35, prosecutor)
 * Moon Woo Jin (문우진) as Han Gang (10, Han Cha Kyung's son)
 * Jun Noh Min as late Jin Jung Kil (Jin Jin Young's father)
 * Yoon Na Moo as Song Gil Choon (prisoner)
 * Yoo Sang Jae as team leader of Myung-jin PD
 * Yoon Ji Min as Madam Hong
 * Baek Suk Kwang (백석광) as Lee Young Min (Lee Kwang Ho's son)
 * Kwon Hwa Woon (권화운) as Hyun Jin Kyum (Lee Young Min's friend)
 * Lee Nam Hee as Cha Kwang Tae (Lee Kwang Ho's ex-butler)
 * Baek Eun Hye (백은혜) as nurse

Production Credits

 * Director: Shin Kyung Soo
 * Screenwriter: Lee Hyun Joo