Humans- Obvious...and there Humans that are good...and ones that are evil.
But, most humans...should be good
Apparitions- ARE Demons....but they resemble Humans in appearance. When an Apparition gets strong, sometimes they are able to transform into an actual Demonic Appearance. This form will make them stronger, but drains more of their energy.
Demons- Kind of obvious what these are as well. There are no demons with human appearances