Characters played by Daniel Kang
Wi Seung-hyun
Characters played by Chae Soo-bin
Go Eun-kang
Characters played by Lee Sin-young
Kim Tak
Characters played by Yoo-na Park
Ki Han-na
Characters played by Sung Joon Park
Yoo Dae-il
Characters played by Do-hee Min
Woo Joo-young
Characters played by Kim Woo-Seok
Seo Beom-joo
Characters played by Young Min Cheon
Shin Ah-ri
Characters played by Kim Sang-Ho
Cha Yoo-gon (police science professor)
Characters played by Ye-Eun Shin
Jang So Yeon