Jennifer Carpenter - Sketch of the Day, Monday, June 21, 2017 Jennifer Leann Carpenter (born December 7, 1978) is an American actress best known for playing Debra Morgan on the Showtime drama series Dexter (2006–13), for which she won a Saturn Award for Best Supporting Actress on Television in 2009. She is also known for starring in the hit film "White Chicks" as (Lisa). She starred as Rebecca Harris in the CBS series Limitless from 2015 until its 2016 cancellation. Source: Wikipedia