Alison Arngrim was 48 years old when she publicly revealed she was sexually abused by a family member starting at age 6. It was 2004 when the actress, who played mean girl Nellie Oleson in "Little ...

Little House on the Prairie star Alison Arngrim—who played the spoiled Nellie Oleson in thebeloved Western historical drama—recently issued a bold PSA about "predators" in Hollywood.