From Wikipedia, the free encyclopedia. Tamera Darvette Mowry (born July 6, 1978) is an American actress. She first gained fame for her teen role as Tamera Campbell on the ABC/WB sitcom Sister, Sister (opposite her identical twin sister Tia Mowry). She starred in the Disney Channel Original Movie Twitches and its sequel, Twitches Too. She has also made a break into dramatic television, and is also known for her role as Dr. Kayla Thorton on the medical drama Strong Medicine. In 2009, Mowry appear ...