Loretta Devine (born August 21, 1949) is an American stage, film and television actress known for her roles on Boston Public, Grey's Anatomy, Eli Stone, and State of Georgia. She also provided her voice for the stop motion animated television series The PJs. Devine is a five-time NAACP Image Award winner. Most recently, she received her first Emmy Award nomination for her guest role as Adele Webber in Grey's Anatomy. She appears on Glee as Sister Mary Constance.