Psychopath Diary

Yoon Shi-yoon

Yook Dong Shik

Jung In-sun

Shim Bo Kyung

Park Sung-hoon

Seo In Woo

Lee Han-wi

Yook Jong Chul

Hwang Hyo-eun

Yook Ji Yeon

Lee Min-ji

Oh Mi-Joo

Choi Tae-hwan

Shin Seok-hyeon

Han Soo-hyun

Kim Mu Seok

Oh Chae-eun

[Seo Ji-hoon's secretary]