Kang Ki-Beom (16 episodes, 2020)
Han Tae-Woong (16 episodes, 2020)
Song Mi-Na (16 episodes, 2020)
Choi Geun-Cheol (16 episodes, 2020)
Lee Gwang-Cheol (16 episodes, 2020)
Hwang Deuk-Gu (16 episodes, 2020)
Choi Ye-Won (16 episodes, 2020)
Dr. Oh (6 episodes, 2020)
Bradley (6 episodes, 2020)
Seol Min-Joon (6 episodes, 2020)
Susan (6 episodes, 2020)
Min Dal-Ho (6 episodes, 2020)
Gu Won-Bong (5 episodes, 2020)
Bong Man-Cheol (5 episodes, 2020)
Jang Mi-Joo (5 episodes, 2020)
Choi Yong (5 episodes, 2020)
Park No-Sik (4 episodes, 2020)
Ko Yong-Deok (3 episodes, 2020)
Detective Yang Moon-Bok (3 episodes, 2020)
AI (3 episodes, 2020)
Kim Yeo-Jin (2 episodes, 2020)
Chairman Hyeon (2 episodes, 2020)
Lee Jae Han (2 episodes, 2020)
Kim Dae-Sik (2 episodes, 2020)
Hostage #1 (2 episodes, 2020)
Hostage #2 (2 episodes, 2020)
Teen bus passenger (1 episode, 2020)
Reporter at courthouse (1 episode, 2020)
Detective (1 episode, 2020)
Kwon Gi-Tae's Wife (1 episode, 2020)
Han Tae-Yeon (1 episode, 2020)
Han Tae-Woong (Young) (1 episode, 2020)
Kwon Gi-Tae (1 episode, 2020)
Jazz Club Singer (1 episode, 2020)
Police Disciplinary Hearing (1 episode, 2020)
Han Tae-Yeon (Young) (1 episode, 2020)
Min Dal-Ho Subordinate (1 episode, 2020)
Kwon Gi-Jun (1 episode, 2020)
Politician (1 episode, 2020)
Masked man (unknown episodes)