Four Horsemen - Blast from Past

The Four Horsemen of the Apocalypse are personified concepts that have their own consciousnesses.

They can manifest by mimicking human form, which can be harmed in manners identical to humans. It seemed that War manifested quite some time ago, while the other Horsemen (except Death, who had to be freed) were trotting behind him. They are respectively known as: War, Famine, Pestilence, andDeath. 

Each use a special ring that channels their core ability, without which, their physical forms lose most, if not all of their powers. The only power they have shown to be capable of without their rings, is teleportation and in Death's case omniscience. Also, they each travel in a car (colored to resemble their steed's color in lore), having gotten in "with the times".

The Horsemen seem to be allied with only each other and their jobs, and do not take the side of Heaven nor Hell. After Luciferrises from his cage in Hell, he takes command of the Horsemen (seemingly through the use of a binding spell to compel them to comply with his orders) and directs them in enacting his Genocide against humanity. It is revealed, however, that at least some of the Horsemen resent Lucifer's use of them in his fight with God, ultimately revealing that he only has limited control over them. Their rings, unknown to all but a few select individuals, are the keys to Lucifer's Cage in Hell, and thus the Horsemen collectively hold the key to sending him back.

WAR:

Death:

Famine:

Pastilence: