The self-proclaimed "Black Knight" is a tall, thin man of indeterminable age. Anything from late teens to early thirties could fit. He has dark ash-grey skin, short spikey black hair, featureless black eyes, sharp blackened teeth, short slightly twisting horns, slightly pointed ears, bird talons for hands, and a thick viscous black substance for blood.
He appears to be mentally stuck in Faerie as he dresses in a black medieval "leather" armour (that does not appear to be made of leather) at most times and carries around a six feet long claymore made of solid shadow.
Fortunately he often leaves the blade in the back of his car. He drives a black van with plenty of room for transporting his pets.
He has two dogs; a doberman named Maxwell and a rottweiler named Arthur. He is almost never seen without his pet raven, Quoth. Lately he has been accompanied by a surly briarwolf named Hans.
He shares a hollow, a black tower, with Dvalin the smith, Talon Baines, and Louis XIV.
He holds no official position in the Freehold, but those of Autumn may know him as a Paladin of Shadows, part of the martial arm of the Autumn Court.

Also, for some reason, he has neither a shadow nor a reflection. Same goes for his raven. He never leaves footprints, not even in snow.