Ben is a student at the same school as the twins. He isn’t a major player in the social scene — but he’s curious, skeptical, and nosy. After catching Aure doing something unsettling, Ben becomes suspicious of her and tries to warn others. That curiosity will eventually cost him his life.

This role expands throughout the film. Ben is a contrast to Aure — a normal teen reacting to something he doesn’t understand. His fear builds slowly and should feel increasingly genuine. The actor should be comfortable shifting from casual confidence to rising panic.