Jonathan P. Gilbert

Jonathan J. Gilbert is an American former child actor best known for portraying Willie Oleson on the TV series Little House on the Prairie from 1974 to 1983. Born to actors Barbara Crane and Paul Gilbert, he is the adopted brother of actresses Melissa Gilbert and Sara Gilbert. After retiring from acting in the mid-1980s, he earned a BA from Hamilton College and an MBA in Finance from Baruch College, and became a stockbroker in New York City.[1][2][3]