Coraline

From Moonlight Wiki

Coraline is Mick St. John's wife. She also turned Mick into a vampire, and kidnapped Beth Turner. Mick believes he killed her in a fire many years ago, when he first met Beth.

As of episode Seven, The Ringer, it seems that Coraline has returned in the form of Morgan.

She is portrayed by Shannyn Sossamon.