They allegedly look like humans, but wear hoods that obscure their faces to some extent.
Residents of Luzon and Visayas at one time painted white crosses on their doors to ward off the Kumakatok.
This trend was said to cause the trio to switch from residences to government buildings, hospitals, and even churches.
Reported sightings of the Kumakatok have decreased significantly since World War II.
One explanation is that many buildings were destroyed at that time, leaving the Kumatakok fewer doors upon which to knock.