Daughter of C.J. Byrnes and Cathy D'Arcy.
Darcy has been acting since age three, but her first role actually came before she was even a year old in the children's video Singing Babies.
Since 2005 began, Darcy has done commercials for Comcast, AM South, and the Baltimore Aquarium. She has also recently taken part in the pilot episode for ABC's 1//4life.