Rollenname: Baek Beom - forensic scientist of National Forensic Service
Rollenname: Eun Sol - prosecutor of Criminal Affairs Division 8
Rollenname: Do Ji-han - prosecutor
Rollenname: Jang Cheol / Dr. K
Rollenname: Stella Hwang - researcher and toxicologist of National Forensic Service
Rollenname: No Han-sin - chief prosecutor of Seoul Eastern District
Rollenname: Oh Hwa-soo - judge at the Seoul Eastern District Court
Rollenname: Kang Dong-sik - Eun-sol's prosecuting office investigator
Rollenname: Cheon Mi-ho - Eun-sol's prosecuting office investigator
Rollenname: Park Joong-ho - President of National Institute of Scientific Investigation
Rollenname: Ma Do-nam - Director of National Institute of Scientific Investigation
Rollenname: Jeong Seong-joo - forensic investigator
Rollenname: Eun Gi-sang - Eun Sol's father
Rollenname: Baek Ho-cheol - Baek Beom's father
Rollenname: Yang Soo-dong - chief investigator of Do Ji-han's prosecutors' office
Rollenname: Jang I-nam - Jang Deuk-nam's sister
Rollenname: Choi Hwa-ja - Jang Deuk-nam's wife
Rollenname: Yeom Soon-rye
Rollenname: Doctor Park - Special appearance
Rollenname: Yeom Dae-cheol
Rollenname: Doctor
Rollenname: Grandmother
Rollenname: Choi Han-seok - Detective
Rollenname: Oh Pil-joong - Oh Man-sang's father