Formerly Adorable Child Stars That Turned Into Hideous Adults

Alison Arngrim

Nellie Oleson was the Little House on the Prairie character that made actress Alison Arngrim famous. Although Nellie was adorable to look at, she was nasty and mean. One of her favorite hobbies was making fun of people who were not as fortunate as she was. Arngrim played Nellie from 1974 to 1981.