The Four Horsemen of the Apocalypse were beings that served Quelzatalcum, which batteled the Ghostbusters.
During the time Quelzatalcum came to New City to take over the world, the Ghostbusters came to his Ziggurat to try and stop him. After going to the other side to avoid the Ghostbusters, he sent Four Horsemen of the Apocalypse to battle them. Ultimately the horsemen were defeated by crossing the streams. The Ghostbusters then dressed up as the four horsemen to get the drop on Quelzatalcum.
List of Ghosts
- "Death" a skeleton in a dark blue hooded robe with a scythe on a whitish yellow skeleton horse
- "War" orange colored in armor with a helmet with a military gun of sorts on a reddish horse that breathes fire with tank treads in place of legs
- "Famine" a fat humanoid being with a sword and pitchfork on a grayish horse
- "Pestilence" wrapped in dirty, tattered bandages and mounted on a horse made of locusts.
- Marvel Comics Ltd- The Real Ghostbusters 014
- NOW Comics- Slimer! 19 (Reprint of The Real Ghostbusters 014)