Demetria Dyan McKinney (born August 27, 1979) is an American actress and singer. From 2006 to 2012 she starred in the TBS sitcom Tyler Perry's House of Payne. Her other series regular roles include Tv One sitcom The Rickey Smiley Show, Bounce TV prime time soap opera Saints & Sinners and Syfy horror drama Superstition.
Her stage credits include playing Coretta Scott King in musical I Dream (2010), and well as role of Deena Jones in Dreamgirls (2012). In 2017, McKinney played Whitney Houston in the TV One film Bobbi Kristina. She released her debut album Officially Yours in 2017.
McKinney starred as Janine Shelton–Payne on the TBS comedy series Tyler Perry's House of Payne from 2006 to 2012. She was nominated for a 2009 National Association for Multi-ethnicity in Communications (NAMIC) Vision Award for Best Performance in a Comedy, in recognition of her work on House of Payne. She set to return for her in the House of Payne spin-off The Paynes in 2018. McKinney also guest starred on Necessary Roughness, Drop Dead Diva,Devious Maids, Chicago Med, and Being Mary Jane. She has been a guest star on The Real Housewives of Atlanta airing on the Bravo Television Network since its 7th season premiere on November 9, 2014.