About Kelly McCreary
Kelly J. McCreary is an American actress, best known for her role on the ABC drama series Grey's Anatomy as Dr. Maggie Pierce, the half-sister of series protagonist Meredith Grey. She joined the series as a guest at the end of the tenth season, becoming a series regular in the eleventh season. She has reprised her role on the spin-off series Station 19.
Biography source:
Wikipedia
