Klaveno was cast in HBO's
True Blood in the role of Lorena, the vampire "maker" of the main character
Bill Compton. She first appeared in the fifth episode of season one and became a regular with starring credits in the second half of season two. 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. She and her costar
Stephen Moyer were awarded the "Holy Shit Scene of the Year" award at the Spike
2010 Scream Awards for their scene in season three where Bill turns Lorena's head around 180 degrees while having sex. Klaveno starred in the
Lifetime movie While the Children Sleep in the role of Abby Reed, opposite
Gail O'Grady. She guest starred in the television series
Standoff,
ER, and two episodes of the sixth season of
Dexter. In 2012, Klaveno was cast in the series regular role of
Peri Westmore in the Lifetime comedy-drama series
Devious Maids. When
ABC originally passed on the pilot for
Devious Maids, Klaveno was cast as
Lily Munster in
Mockingbird Lane (NBC's 2012 remake of
The Munsters). However, she was not granted release from her contract on
Devious Maids as it was still in contention for series order on
Lifetime. Klaveno was then replaced by
Portia de Rossi.
Devious Maids was later ordered to series by Lifetime and premiered on June 23, 2013. Klaveno was a regular cast member for the first season and made guest appearances in the second season. In 2014, she was cast as detective Janice Lawrence in the
CBS crime drama series,
Stalker, alongside
Maggie Q and
Dylan McDermott. ==Personal life==