The Boy

is a cryptid that appears as a harmless cute wooden cutout of a small child.

Lore
The Boy is capable of self-propulsion despite not being able to move any limbs. He also seems to be capable of teleporting, as the Hill Horrors team is incapable of disposing of him.

Once The Boy was welcomed into the Hill Horrors team's Headquarters, he latched onto it and refused to leave. Eventually he seeped into the minds of Hatchet and Branch and they began to hear ritual chanting of "THE BOY, THE BOY, THE BOY" over and over. The Boy is ultimately harmless, however, so the team has done nothing to get rid of him since they determined by reading an old tome that he could not be dismissed.

Appearances
The Boy appears in Episode 3: The Boy.