Ja'net DuBois (born August 5, 1945 in Brooklyn, New York) is an

Ja'net DuBois - Mrs. Patterson's voice actress

American actress and singer. She is best known for her roles as Mrs. Avery in The PJs, Viola Battle in Waterproof, Grandma Ellington in The Wayans Bros., Carol and Judith Potter in Home Improvement, Evelyn Hopkins in The Love Boat, Willona Woods in Good Times, Onetha Wiggins in The Sophisticated Gents and several others. 

She provides the voice of Darren and Will's mother, Mrs. Patterson. She provides the voice of Linda in the episode Never Can Say Goodbye.