I, the Executioner [Spanish]

Hwang Jung-min

Seo Do-cheol

Ahn Bo-Hyun

Min Kang Hoon

Dae-hwan Oh

Wang Dong Hyeon [Detective]

Dal-su Oh

Oh Jae-pyeong (Team leader)

Jung Hae-in

Park Sun-woo

Kwak Ja-hyoung

40-year old police officer

Kim Jae-hwa

Booty Madam

Woon Jung-won

Chi-hoon's mom

Kim Mi-ji

Drug addict in a rundown lot

Tue Minh

Thuy

Seok-Chan Jeon

Chief Justice staff

Shin Seung-hwan

Park Seung Hwan

Shi-hoo Kim

Yoon Si-yeong (Detective)

Yoon-ju Jang

Bong Yoon-joo