It is only the results that remain in this world! All the actions you take in a world where time is erased are meaningless!

King Crimson, localized as Emperor Crimson, is the stand shared between Diavolo and Vinegar Doppio, the boss of the criminal organization Passione and main antagonist of JoJo's Bizarre Adventure Part 5: Vento Aureo.

King Crimson is a humanoid Stand of a height and build similar to Diavolo's, but tends to look much bigger and taller. Its body is covered by a raised diagonal grid; save for its face, neck, shoulder guards, elbows, hands, abdomen, crotch, knees, and feet/footwear.

Its eyes comprise sharp orifices of a steep inward slant; from which emerge small, round eyes without sclera, with pronounced eye sockets that have the same fragmented pupils that Diavolo himself has. Its crown is flat and from its forehead emerges a raised level that bears a smaller, oval face of the same expression. In earlier depictions, there were two raised levels. It constantly bares its teeth through a small mouth.

The aforementioned second face on King Crimson's forehead is named Epitaph, and is sometimes duplicated in the same position on Doppio's forehead when he is given some of King Crimson's power by Diavolo, the only difference between is that the two raised levels don't appear. Epitaph presents itself as a bump on the forehead featuring eyes and a mouth constantly grinding its teeth, often mimicking King Crimson's current mood and mouth movements.

Befitting its name, King Crimson is depicted in all media featuring it as being primarily red, with the shade of red varying from work to work. It is depicted in all media as having lime green eyes. Its primary face and the grid on its body is either white or yellow, and its metallic body parts are usually portrayed as white or silvery. King Crimson's knuckles, ankle decorations, lower back, and the soles of its feet vary in color throughout its many appearances, being depicted as white, silver, gold, or emerald (with the aforementioned areas occasionally varying in color in a single depiction).

King Crimson notoriously has one of the most confusing abilities in the entire series. It has the ability to predict the next ten seconds into the future using it secondary stand Epitaph and then uses King Crimson to "Erase Time", eliminating causation and the memories of the actions taken by all individuals in the world, leaving only the results. It is also an extremely powerful stand in terms of physical strength, being capable of easily bisecting a human with a single hand chop.