Yoon Shi-Yoon
Yook Dong-sik
Comedy · Crime · Mystery
"Psychopath Diary" is the story of Yook Dong Sik who coincidentally picks up the diary of a serial killer.
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Yook Dong-sik
Shim Bo-kyung
Seo In-woo
Oh Mi-joo
Sin Seok-hyeon
Bully
Jang Chil Seong
Park Jae-ho
Ryu Jae Joon
Heo Taek Soo
Yook Jong-cheol
Shim Seok Gu (Bo Kyung's father)
Na In-hye (Dong-sik's stepmother)
Gong Chan-seok
Jo Yoo-jin
Han Jung Ah
Yook Ji Yeon (Dong Sik's sister)
Seo Chung-hyeon (In-woo's father)