Liza Lapira (born December 3, 1981) is an American actress. She played Kianna in the 2008 film 21, Special Agent Michelle Lee in the CBS police procedural series NCIS and Ivy, Topher Brink's assistant in Dollhouse. Lapira has also co-starred in the short-lived sitcoms Traffic Light, Don't Trust the B---- in Apartment 23, and Super Fun Night.