Liv

Liv, the blonde bouncer from Danse Macabre, stood just inside the smaller hallway. She was still dressed in her violet body suit. Her extraordinary violet eyes stared at me, empty, waiting. My pulse thudded in my throat. There were other figures behind her.
Richard said softly, "This isn't possible."
I didn't argue with him. It would have been too hard.

(The Killing Dance, page 263, paragraph 9)

* Liv is first described with blue eyes, then violet, although the predominant color seems to be violet. The blue might have been a reflection of the clothing she was wearing.

* Liv is over six hundred years old, but she is not strong enough to intimidate Anita. She isn't a master vampire, and never will be.

* She was one of the vampires that Anita raised from the dead, along with Willie and Damian, using the power of the triumverate.

* When the Vampire Council came into town, Liv betrayed Jean-Claude and invited them into the Circus of the Damned. She had been promised power by The Traveler. In response, Jean-Claude ripped her throat out. She had to heal the wound herself.