- Choi Jin-hyuk
- Â Kang Ki-Beom 16 episodes, 2020
- Cho Dong-hyuk
- Â Han Tae-Woong 16 episodes, 2020
- Jeong Hye-in
- Â Song Mi-Na 16 episodes, 2020
- Kim Min-sang
- Â Choi Geun-Cheol 16 episodes, 2020
- Park Sun-ho
- Â Lee Gwang-Cheol 16 episodes, 2020
- Park Sung-woong
- Â Hwang Deuk-Gu 16 episodes, 2020
- Ji-wan Han
- Â Choi Ye-Won 16 episodes, 2020
- Park Choong-seon
- Â Dr. Oh 6 episodes, 2020
- Jang In-sub
- Â Bradley 6 episodes, 2020
- Kim Da-hyun
- Â Seol Min-Joon 6 episodes, 2020
- Jang Seo-kyung
- Â Susan 6 episodes, 2020
- Yoo Sang Hoon
- Â Min Dal-Ho 6 episodes, 2020
- Ji Dae-han
- Â Bong Man-Cheol 5 episodes, 2020
- Yoo Ji-yeon
- Â Jang Mi-Joo 5 episodes, 2020
- Yoo Hyeong-kwan
- Â Gu Won-Bong 5 episodes, 2020
- Kim In-woo
- Â Choi Yong 5 episodes, 2020
- Kim Yoon-hong
- Â Park No-Sik 4 episodes, 2020
- Park Jeong-hak
- Â Ko Yong-Deok 3 episodes, 2020
- Bang Woo-hoo
- Â AI 3 episodes, 2020
- Lee Sang-Bo
- Â Detective Yang Moon-Bok 3 episodes, 2020
- Kim Jong-goo
- Â Chairman Hyeon 2 episodes, 2020
- Lee Seo-El
- Â Kim Yeo-Jin 2 episodes, 2020
- Dong Hyeon-bae
- Â Lee Jae Han 2 episodes, 2020
- Jang Chul-Soon
- Â Hostage #2 2 episodes, 2020
- Jun Soo-Hyun
- Â Hostage #1 2 episodes, 2020
- Han Gi-Yoon
- Â Kim Dae-Sik 2 episodes, 2020
- Lee Ho-jung
- Â Teen bus passenger 1 episode, 2020
- Lee Dong-kyu
- Â Reporter at courthouse 1 episode, 2020
- Kang Suk-won
- Â Detective 1 episode, 2020
- Jang Jae-kwon
- Â Kwon Gi-Tae 1 episode, 2020
- Jo Yi-hyun
- Â Han Tae-Woong (Young) 1 episode, 2020
- Lim Yong-soon
- Â Police Disciplinary Hearing 1 episode, 2020
- Kim Kyu-bin
- Â Kwon Gi-Jun 1 episode, 2020
- Kim Ok-Joo
- Â Kwon Gi-Tae's Wife 1 episode, 2020
- Choi Moon-kyung
- Â Han Tae-Yeon 1 episode, 2020
- Lee Kyung-Oh
- Â Politician 1 episode, 2020
- Lee Da-Kyung
- Â Han Tae-Yeon (Young) 1 episode, 2020
- Kim So Ri
- Â Jazz Club Singer 1 episode, 2020
- Wang-Seok Seo
- Â Min Dal-Ho Subordinate 1 episode, 2020
- Koo Ja-keon
- Â Masked man unknown episodes
