The Red Court was one of the Vampire Courts. It was first mentioned in Grave Peril, where they declared war on the White Council. This war continued until the Court was destroyed by a bloodline curse in Changes.
Red Court vampires were non-human creatures, capable of disguising themselves as, and preying on, humans. Their true form was described as flabby, bat-like, and with a distended belly. Their skin mask could be used for disguise and discarded at any time, in part or in whole.
The Red Court was based in Central and South America. They would use the people of villages as cattle; feeding on everyone, including children. They also were one of the major supernatural nations in the world with holdings all over the world: property, corporations, accounts, some governments, stocks, and a variety of other assets. The Red Court had a highly organized feudalistic system with a Red King at the top, followed by Dukes and lower ranks.(reference needed)
The mark of power is to be able to control the blood thirst—that is indulging in it by choice and not by impulse. Crossing a threshold would render a Red Court vampire nearly paralyzed. According to the knowledge of the Fellowship of Saint Giles, a standard Red Court field operations team consisted of six vampires.
The entire Red Court was destroyed by their own own curse aimed at the McCoy-Dresden family. If any were missed by the curse, they would have had to be the youngest of the least powerful bloodlines or sheltered in some protective place.
Known members include the Red King,(reference needed) Lords of Outer Night,(reference needed) Arianna Ortega,(reference needed) Paolo Ortega,(reference needed) Bianca St. Claire,(reference needed) Kyle Hamilton(reference needed) and Kelly Hamilton.(reference needed) Known enemies are the Fellowship of Saint Giles,(reference needed) the White Council,(reference needed) the Knights of the Cross,(reference needed) the Venatori,(reference needed) and the Faerie Courts.(reference needed)
In the seriesEdit
In Summer Knight, the war between the White Council and the Red Court is underway, causing several casualties on the White Council side, and Harry Dresden is the target of more than one assassination attempt. The White Council tries to prove that he is either in league with the Red Court or is under their influence. There is also word of a traitor in the lines of the White Council, working for the Red Court.(reference needed)
In Changes, Harry Dresden discovered that the Red King is a junkie to his blood thirst. Dresden thought that it explained a lot about how the Red Court behaved during The War—they were brilliant and aggressive one moment and made dumb, crazy mistakes the next.
In Ghost Story, the destruction of the Red Court has left a power vacuum. Every two-bit supernatural group or organization is attempting to take advantage of it and found an empire. South America is the worst. Chicago has managed to repel the Fomor and the Paranet has been a huge help by saving hundreds of lives. 
- ↑ 1.0 1.1 Death Masks, ch. 14
- ↑ 2.0 2.1 Ghost Story, ch. 10
- ↑ 3.0 3.1 3.2 Changes, ch. 43
- ↑ Ghost Story, ch. 09
- ↑ Changes, ch. 04
- ↑ Ghost Story, ch. 7
- ↑ Grave Peril, ch. 38
- ↑ Summer Knight, ch. 1
- ↑ 9.0 9.1 Summer Knight, ch. 5
- ↑ Summer Knight, ch. 9
- ↑ "War Cry"
- ↑ Ghost Story, ch. 10
- ↑ Ghost Story, ch. 24