Mariana Klaveno (born October 25, 1979)[1] is an American actress best known for her television roles as Lorena Ball (Krasiki) in the HBO series True Blood, as the psychopath Abby in the Lifetime movie While the Children Sleep, and as movie actress Peri Westmore in the Lifetime comedy-drama Devious Maids.

[2] Klaveno was cast in HBO's True Blood in the role of Lorena, the vampire "maker" of the main character Bill Compton.

[3][4][5] Klaveno was nominated with the starring cast for the "Outstanding Performance by an Ensemble in a Drama Series" at the 16th Screen Actors Guild Awards in January 2010.

[7] Klaveno starred in the Lifetime movie While the Children Sleep in the role of Abby Reed, opposite Gail O'Grady.

In 2014, she was cast as detective Janice Lawrence in the CBS crime drama series, Stalker, alongside Maggie Q and Dylan McDermott.