Linda Porter (actress)
Linda Porter (January 31, 1933 – September 25, 2019) was an American actress. She appeared in numerous feature films, television programs, advertisements and music videos—most prominently in the series "Superstore" and "Twin Peaks" and the film "Dude, Where's My Car?". She died of cancer on September 25, 2019. Other appearances. Porter appeared as the sample lady in a series of Nature Valley Cereal television commercials, which aired in the United States. She also played the part of the demonic old lady at the end of the Tenacious D music video "Tribute".