Insane

Kang Ye-won

Kang Su-a

Lee Sang-yun

Na Nam-su

Choi Jin-ho

Jang Hyung-sik

Ji Dae-han

Kang Byung-joo

Kim Jong-soo

Director Cha

Cheon Min-hui

Mi-ro

Lee Hak-ju

Dong-sik

Jang Tae-seong

Depeartment Head Gu

Yoo Gun

Woo-jin

Choi Youn-so

Ji-young

Jo Jae-yun

Detective Park

Kil Hae-yeon

Su-a's mother

Kim Han-jong

Balbari

Kim Won-jung

Section Cheif Kim

Park Se-jin

(uncredited)

Lee Kyu-ho

Camera

Ahn Ji-hye

Yeo Kyung

Kim Ho-won

Doctor

Mo Jeong-min

Elderly Patient in Mental Hospital 1

Lee Cheol-ha

Director

Valentine

Writer

Kim Je-young

Adaptation

Kim Na-deul

Adaptation

Yoo Young-seon

Adaptation

Kim Yoon-mi

Executive Producer

Kim Yo-hwan

Producer

Sung Yoon-yong

Sound Supervisor

Kim Won-jung

Martial Arts Choreographer

On Se-woong

Production Sound Mixer

Chung Hye-won

Production Design

Kim Woo-hyun

Editor