Psychopomp
These varied creatures are hard-working members of the divine bureaucracy, charged with making sure the souls of the dead reach the correct afterlife. Unfortunately in a twist nobody could have seen coming, the God of Death himself died some thousands of years ago and nobody knows the equivalent of his computer passwords. Many of the functions of the afterlife are thus not working, including the ability to imbue new psychopomps. As a result, the survivors are heavily overworked due to population growth overwhelming them.
In normal affairs psychopomps do not interact with mundane living humans at all, though rare magicians and especially necromancers can interact with them. However, they do accrue vacation time during which they briefly get to live. The extreme overwork and stress on Psychopomps have led to episodes of incredibly entitled tourists who, if every demand is not met, may place powerful curses on whoever didn't make their vacation extra-special.
Worse, there are certain factions among the psychopomps who have decided to take matters into their own hands. With the afterlives not working at full function and the remaining psychopomps barely able to handle the influx of souls, they have proposed the radical option of doing all they can to reduce the human population and reduce future workload. These psychopomps have forsaken their normal authority and spend their vacation time influencing human society to produce conditions that will retard birthrates and cause population bombs and cause human living conditions to worsen in order to further reduce the population. They're promoting plagues, wars, famines, brutal dictatorships, and other conditions that will kill as many as possible. While this temporarily increases workload, they believe it will reduce it in the long run, and in the short run it forces the psychopomps who disagree with them to run themselves ragged trying to keep up with demand, and thus don't have time to oppose them. Some psychopomps in the most extremist faction are even pro-extinction....
Night Washers
Somewhat associated with psychopomps, the Night Washers are a charitable volunteer organization that washes the clothes of those who died by violence so that they appear more presentable when going before the Judges of the Dead. They manifest as skeletal women in ragged white garments that stay immaculately clean even when the Night Washer is hip-deep in a river. They manifest pale hair that floats around them in a halo. As they work, Night Washers wail over the sins of the dead and the suffering of the living, trading morbid and macabre stories of horrible deaths as they wash.
Night Washers manifest only at night at lonely streams and rivers where they pound clothes with stones and use ancient lye soaps to clean. If an unwary traveler comes near, especially if there's been a war or natural disaster so that there are a large number of clothes, the Night Washers may drag the traveler into the stream and force them to help wash. Those who resist or refuse may suffer a curse, or if they manage to particularly aggravate the Night Washers on a bad night they may break the traveler's legs and drown them in the river. Even travelers who cooperate are exposed to the energies of death and will suffer nightmares from listening to the Night Washer's stories and will be able to perceive spirits such as psychopomps afterwards. However, those who are willing to help strangers and put hard work into washing may also receive a death-related blessing and will receive extra support from the Night Washers when their own turn before the Judges of the Dead comes up.