Pemeran Mantis

Yim Si Wan (임시완)

as Lee Han Ul / Mantis

Pemeran Utama

Park Gyu Young (박규영)

as Sin Jae I

Pemeran Utama

Jo Woo Jin

as Dok Go

Pemeran Utama

Choi Hyun Wook (최현욱)

as Benjamin Cho [CEO of Meta Software]

Pemeran Pembantu

Bae Gang Hee

as Yang Su Min

Pemeran Pembantu

Hwang Sung Bin

as Puma Lee

Pemeran Pembantu

Yoo Soo Bin

as Kim Dong Yeong

Pemeran Pembantu

Jeon Bae Soo

as Nam Bae Su

Pemeran Pembantu

Kim Tae Han

as Representative Bae

Pemeran Pembantu

Park Kang Sub

as General Manager Yoo

Pemeran Pembantu

Park Kyu Bin

as Sin Ja I [Young]

Bintang Tamu

Esom (이솜)

as Cha Min Hui [Flashback]

Bintang Tamu

Koo Kyo Hwan (구교환)

as Han Hui Seong [Flashback]

Bintang Tamu

Kim Sung Oh

as Sergeant Sin [Flashback]

Bintang Tamu

Choi Byung Mo

as Hyeon Cheol [Flashback]

Bintang Tamu

Kim Ki Cheon

as Su Geun [Flashback]

Bintang Tamu

Park Gwang Jae

as Gwang Man [Flashback]

Bintang Tamu

Jang In Sub

as Yun Seok [Flashback]

Bintang Tamu

Hwang Bo Jeong Il

as [Killer bar owner]

Bintang Tamu

Ahn Sung Bong

as [MK Front-Desk staff]

Bintang Tamu

Oh Chi Woon

as [Dead Body-Cleaning Team leader]

Bintang Tamu

Yoon Hyun Sik

as [Teenager]

Bintang Tamu

Byun Sung Hyun

Original Creator

Lee Jin Sung

Screenwriter

Lee Tae Sung

Screenwriter & Sutradara

Sul Kyung Gu (설경구)

as Cha Min Gyu

Cameo

Jeon Do Yeon

as Gil Bok Sun

Cameo

Yang Dong Geun

as Kang Gwang Cheon | [Twin]

Cameo