Dracula

Dracula, or Vlad Tepesh, is a Black Court vampire mentioned in the series but not actually appearing. He is first mentioned in Grave Peril.

Description
Dracula is the son of Drakul, and, though capable of moving around by daylight, a pale and weak imitation of him. He became a Black Court vampire in a fit of teenage rebellion towards Drakul.

Grave Peril
In Grave Peril, when Harry Dresden requests to be invited in to the Malone house by a family member, detective Rudolph accuses him to be Count Dracula, to which Dresden replies that, at last check, Drakul is still in eastern Europe.

Blood Rites
In Blood Rites, Dracula is mentioned as the son of Drakul, and a pale and weak imitation of his father. According to Bram Stoker's book, he was able to move around in daylight, and he was only staked in his coffin in the movie versions of his story.

White Night
In White Night, Bob informs Harry Dresden that the original Drakul is a signatory of the Unseelie Accords, while his son is not.

Skin Game
In Skin Game, Maggie Dresden and Harry Dresden refer to Black Court vampires as Draculas.