Jack Harmon is the main protagonist of the fifth Goosebumps Hall of Horrors book, Don't Scream!


Jack has a terrible ride on the bus from school taking him home, two kids spit in his hat. When they leave, Jack finds a phone sitting in a seat, and it speaks to him. He decides to keep it, however, it begins telling him to do bad things. When he gets rid of it, it takes him back by invading technology.


  • Jack can be seen on the cover of the book, as his reflection is visible on the TV screen.
  • Jack has the same last name as Scott Harmon, the protagonist of Trick or Trap.