Han Jung Hyun / Lee Suk Kyu (16 episodes, 2021)
Choi Yeon Soo (16 episodes, 2021)
Lim Hyeong Rak (16 episodes, 2021)
Do Young Geol (16 episodes, 2021)
Han Seung Goo (16 episodes, 2021)
Han Seung Mi (16 episodes, 2021)
Han Jung Hyun / Lee Suk Kyu (young) (15 episodes, 2021)
Choi Yeon Soo (young) (13 episodes, 2021)
Jung Cheol Hoon (9 episodes, 2021)
Song Mi Seon (9 episodes, 2021)
Bae Goo Taek (9 episodes, 2021)
Oh Pil Jae (8 episodes, 2021)
Chu Dong Woo (8 episodes, 2021)
Kang Choong Mo (7 episodes, 2021)
Yoo Sang Dong (7 episodes, 2021)
Min Sang Ah (6 episodes, 2021)
Kim Myung Jae (6 episodes, 2021)
Park Won Jong (6 episodes, 2021)
Detective Gu (5 episodes, 2021)
Go Yoon Joo (5 episodes, 2021)
Kwak Moon Heum (5 episodes, 2021)
Mr. Park (4 episodes, 2021)
Do Young Geol (young) (4 episodes, 2021)
Kim Tae Yeol (3 episodes, 2021)
Hwang Jung Ho (3 episodes, 2021)
Kang Choong Mo (young) (3 episodes, 2021)
Cha Min Ho (3 episodes, 2021)
Go Yoon Joo (young) (3 episodes, 2021)
Kim Kwang Chul (3 episodes, 2021)
Detective Jo (3 episodes, 2021)
Yoo Bin (3 episodes, 2021)
Jung Hee (3 episodes, 2021)
Nurse Kim (3 episodes, 2021)
Interviewer (3 episodes, 2021)
Kim Myung Jae's daughter (2 episodes, 2021)
Subway Control Room Staff (2 episodes, 2021)
Reporter (2 episodes, 2021)
Lee Min Yool (2 episodes, 2021)
Chief Editor Song Moon Bae (2 episodes, 2021)
Kim Myung Jae's wife (2 episodes, 2021)
Lee Man Ho (2 episodes, 2021)
Lee Kang Ho (2 episodes, 2021)
Kim Ah Soon (2 episodes, 2021)
Lee Young Sook (2 episodes, 2021)
Cheon Woo Jin (2 episodes, 2021)
Park Hyun Pil (2 episodes, 2021)
Prosecutor Ryu Sung Hyun (2 episodes, 2021)
Prosecutor Kon Soon Chun (2 episodes, 2021)
Reverend Ha (2 episodes, 2021)
Park Joo Won (2 episodes, 2021)
Prosecutor Park Jun Suk (2 episodes, 2021)
Park Young Soo (2 episodes, 2021)
Police officer (1 episode, 2021)
Drug Gang Boss (1 episode, 2021)
Kim Tae Yeol's mother (1 episode, 2021)
Hwang Hyun Ju (1 episode, 2021)
Cha Min Ho (young) (1 episode, 2021)
Hwang Jung Ho (young) (1 episode, 2021)
Kim Da Kyung (1 episode, 2021)
Loan shark (1 episode, 2021)
Yeoyeong Inn owner (1 episode, 2021)
Park Doo Shik (1 episode, 2021)
Park Doo Shik (young) (1 episode, 2021)
Police university instructor (1 episode, 2021)
Kim Ah Soon's mother (1 episode, 2021)
Sergeant Won Bok Dong (1 episode, 2021)
Prosecutor Jeon Hong Go (1 episode, 2021)
Han Seung Goo (child) (1 episode, 2021)
CIO protester (1 episode, 2021)
Ko Yu Ri (1 episode, 2021)
Kim Dong Young (1 episode, 2021)
Real estate agent (1 episode, 2021)
Security guard (1 episode, 2021)
Han Sang Jin (1 episode, 2021)
TV reporter (1 episode, 2021)
Agency Executive (1 episode, 2021)
Assemblyman Yang (1 episode, 2021)
Min Sang Ah (young) (unknown episodes)