J
- Jack Attack (Demonic Toys and its sequels)
- Jaws aka Bruce the Shark, (Jaws)
- Jester (Puppet Master and its sequels)
- Joanie (Cursed) - Judy Greer
- Muffy St. John/Buffy St. John (April Fool's Day) - Deborah Foreman
- John Kramer aka Jigsaw (Saw) - Tobin Bell
- Jon (Lost Boys: The Tribe) - Kyle Cassie
- Jonah (Dark Ride) - David Warden
- Jonas (Prom Night IV: Deliver Us from Evil) - James Carver
- Mr. Jones (Killer's Moon) - Peter Spraggon
- Jay Jones (Home Sweet Home) - Jake Steinfeld
- Judd (Eaten Alive) - Neville Brand
- Josh Casiel(JTHM) - Josh Wenzel
Read more about this topic: List Of Horror Film Antagonists