Loretta Devine (born August 21, 1949) is an American actress, singer and voice actor. She is known for numerous roles across stage and screen. Her most high profile roles include Lorrell Robinson in the original Broadway production of Dreamgirls, the long-suffering Gloria Matthews in the film Waiting to Exhale, and her recurring role as Adele Webber on the medical drama Grey's Anatomy, for which she won a Primetime Emmy Award for Outstanding Guest Actress in a Drama Series in 2011.