That would be a matter of opinion. Who do you think is the scariest character in the scariest horror movie you've watched?
Telletubbies
boogeyman
plumber
Many people consider The Exorcist to be the scariest movie ever made.
the scariest one ive ever got was about bloody mary.........
it depends on what you think
Hannibal lector
bad romance
scary movie 3
Manhunt 2
It depends on the individual.