Jung Woo-sung as Han Do-kyung

Hwang Jung-min as Park Sung-bae

Ju Ji-hoon as Moon Sun-mo

Kwak Do-won as Kim Cha-in

Jeong Man-sik as Do Chang-hak

Kim Won-hae as Akeo / Alligator

Kim Jong-soo as Eun Choong-ho

Kim Hae-gon as Tae Byung-jo

Yoon Ji-hye as Cha Seung-mi

Oh Yeon-ah as Jung Yoon-hee

Choi Byung-mo as Prosecutor Oh

Yoo Jeong-ho as Detective Yoo

Park Hyeok-min as Park Soo-suk

Hyun Bong-sik as Detective Kang

Mi-nam Jeong as Ggan-cha

Cho Joon as Park Deuk-ryong

Jung Hyung-suk as Detective Song

Park Yu-mil as Nurse Shin

Jeong Dong-gyoo as Deputy Mayor

Kim Soo-jin as City Counciler

Kim Hyun-bin as Chief Hwang's Son

Park Jeong-hak as Inspector Park

Yoon Je-moon as Chief Hwang

Yoon Dae-yeul as Lee Byung-cheon

Lee Ga-kyung as Police

Yum Dong-hun as City Council Member

Hwang Byeng-gug as Detective Guk

Choi Seong-won as Doctor-in-charge

Park Jeong-hak as Inspector General Park

Anupam Tripathi as Indian Worker

Mahbub Alam as Bangladeshi Worker

Cha Rae-hyung as Doctor in Charge (voice)

Geum Gwang-san as Kwang San from Tae Byung-jo's Entourage

Park Ji-hwan as Byung-jo's Entourage Sunglasses Man

Lee Sang-min as Sung-min

Seo Myung-chan as Chief Investigator

Lim Yong-soon as Politician on Consenting Party Side

Choe Won-kyung as Lee Min-seob

Joo Ye-bin as High School Girl