Non-Wesen

Non-Wesen beings are creatures that are not Wesen and are more ghostly, demonic, or spiritual creatures.

Only three types of non-Wesen are known, these being:

Ghosts
Ghosts are non-Wesen creatures that are based of the classic stories of dead spirits that get trapped in limbo. Ghosts can disappear and create illusions, they may also hide their real appearance like a normal Wesen despite not being one. La Llorona and her three kids are the only known examples.

Demons
Demons are non-Wesen creatures based off the legends, myths, and religious figures of evil beings that live inside the Earth and are normally related to fire and the dead. Judging from the only known Demon seen on the show, their abilities include: spitting fire, teleportation, and causing earthquakes. Volcanalis is the only known example.

Spirits
Spirits are non-Wesen that occupy a man-shaped body made from a single material. The Golem is the only known example of this type. Spirits are different from ghost because they were never living creatures. Spirits act like a protector and not an enemy despite what they are used for.