Unsub is an American television series that aired on NBC from February 3 to April 14, 1989. The series centers around an elite FBI forensic team that investigates serial murderers and other violent crimes. Unsub is an abbreviation for the unknown subject of an investigation.

• David Soul
• M. Emmet Walsh
• Jennifer Hetrick
• Joe Maruzzo
• Richard Kind
• Kent McCord
• Andrea Mann