- Jeong Jae-yeong
- Choi Hyung-goo
- Park Shi-hoo
- Lee Du-sok
- Jung Hae-kyun
- Jay
- Kim Young Ae
- Han Ji-soo (victim's mom)
- Choi Won-young
- Tae-sok (victim's brother)
- Kim Jong-goo
- Ophiuchus
- Jo Eun-ji
- Choi Gang-sook
- Oh Yong
- Kang Do-hyeog
- Woong Park
- Kim Wan-jang
- Sung-Woo Bae
- Gwang-soo
- Mi-ja Jang
- Director of Publishing Company
- Jung-Hee Nam
- Nomo
- Min Ji-ah
- Kang Soo-yeon (Hyung-goo's ex-girlfriend)
- Jae-seung Ryu
- Jung Hyng-sik
- Jang Gwang
- Bureau Chief
- Lee Jae-goo
- Park PD
- Do-Yeon Kim
- Writer
- Son Jong-hak
- People's Discussion Moderator
- Choi Hee-jin
- (as Hee-jin Choi)
- Hye-ryeong Koo
- Secretary of publishing company president
- Han Sa-myung
- Young Kang Do-hyeog
- Won Woo
- Bodyguard 4
