​From Wikipedia, the free encyclopedia.   Tichina Rolanda Arnold (born June 28, 1971) is an American actress and singer. She has portrayed the roles of Pamela James on the FOX sitcom Martin and the family matriarch Rochelle on the UPN/CW sitcom Everybody Hates Chris. Description above from the Wikipedia article Tichina Arnold, licensed under CC-BY-SA, full list of contributors on Wikipedia.