Mabel Elizabeth King (née Washington; December 25, 1932 – November 9, 1999) was an American actress and singer. She is known for her role as Mabel "Mama" Thomas on the ABC sitcom What's Happening!! from its premiere in 1976 until the end of its second season in 1978. King is also known for portraying Evillene the Witch, a role she originated in the stage musical The Wiz and reprised in Sidney Lumet's 1978 film adaptation. She recorded on the Rama Records and Amy Records labels. Early life King was born Mabel Elizabeth Washington in Charleston, South Carolina, the daughter of Rosalie Washington and Joseph Washington on Christmas Day 1932. She was raised in Harlem, New York where she eventually became a gospel and nightclub singer. Career Stage work She did not start acting until her mid thirties, in 1966, when she played the role of Maria in the national touring play of Porgy and Bess. The following year she played the role of Ernestina in the Broadway musical/comedy Hello, Dolly! Then in 1972, she acted in the musical film Don't Play Us Cheap, which went unreleased until the following year, after it had been performed on Broadway as a stage play. That same year, she played the Queen of Myrthia in the horror film Ganja & Hess. In January 1975, she played the role of Evilene, the Wicked Witch of the West in the all-African-American cast of the Broadway musical The Wiz. The role earned her a Drama Desk Award nomination for outstanding featured actress in a musical. Her performance in The Wiz brought her much attention and soon after she received roles in the films The Bingo Long Traveling All-Stars & Motor Kings, with Billy Dee Williams and James Earl Jones, and Scott Joplin, with Billy Dee Williams and Clifton Davis. In June 1980, King returned to stage work, starring in the Broadway musical It's So Nice to Be Civilized. However, the show did poorly and closed after eight performances. Television and film In 1976, she was offered the role of Mabel Thomas on the sitcom What's Happening!!. Her character often used the catch phrase "This is true", which she said to her children when she tried to prove a point to them. King played the role from 1976 to 1978, but due to disagreements with the direction the creators wanted to take the series, she left What's Happening!!