A Killer Paradox

Choi Woo-shik

Lee Tang

Son Suk-ku

Jang Nan-gam

Lee Hee-jun

Song Chon

Kwon Da-ham

Ahn Yong-jae

Oh Min-ae

Lee Tang's Mother

Hyun Bong-sik

Park Choong-jin

Kim Yo-han

Roh Bin

Kim Min-ju

Lee Young

Heo Seon-haeng

Lee Tang's Father

Park Ji-han

Jung Gang-hyo

Jung Yi-seo

Sun Yeo-ok

Yang Mal-bok

Shin Jung-hee

Jung Hoe-ryn

Eun-seon

Choi Sun-woo

Gyeong-hwan

Baek Yu-sung

Lee Jin-seong

Seo Jae-kwon

Kang Jae-joon

Park Kyung-geun

Chief of Crime Department

Oh Woo-ri

Mi-young

Lee Ji-hoon

Moon Myeong-jun

Nam Jin-bok

Ji Gyeong-bae