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".
Lisa Loring Lisa Loring (born Lisa Ann DeCinces on February 16, 1958) is an American actress. She is best known for having played Wednesday Addams on the 1964–66 sitcom "The Addams Family".