Chun Woo-hee as Lee Na-mi

Yim Si-wan as Oh Jun-yeong

Kim Hee-won as Woo Ji-man

Park Ho-san as Lee Seung-woo

Kim Ye-won as Jeong Eun-joo

Jeon Jin-oh as Kim Jeong-ho

Oh Hyun-kyung as CEO Oh

Ryu Sung-hyun as Chief of Detective

Jeon Ik-ryoung as Jeong-mi

Kim Joo-ryoung as Eun-mi

Lee Jung-eun as Chu-yeong

Kim Sun-hoa as Ja-eun

Kim Min-ju as Soo-jin

Lee Yong-nyeo as In-ja

Kil Hae-yeon as Je-yeon

Choi Chan-ho as Woo Jun-yeong

Baek Do-kyeom as KCSI Team Leader

Park So-eul as Young Lee Na-mi

Park Byeong-hoon as Detective

Lee Chang-yong as Cybercrime Detective

Park Joo-young as Na-mi's friend

Kim Yeon-gyo as Na-mi's friend

Yun Ki-chang as Detective

Lee Jung-chul as Taxi driver

Ryoo Je-seung as Missing team

Kim Ye-ji as Police

Lee Geun-hu as Victim

Lee Sae-byeol as Victim

Kim Geun-young as Victim