Whose sister did Melissa Sue Anderson play in "Little House on the Prairie?"
Melissa Sue Anderson Melissa Sue Anderson (born September 26, 1962) is an American-Canadian actress. She began her career as a child actress. Anderson is known for her role as Mary Ingalls on the NBC drama series "Little House on the Prairie".
Lanna Saunders Svetlana Nikolaevna "Lanna" Saunders (December 22, 1941 – March 10, 2007) was an American actress, best known for her role as Marie Horton on the television soap opera "Days of Our Lives", on which she appeared from 1979-85. She also played the character Betty Andrews on the daytime soap opera "The Young and the Restless".