Jonathan Gilbert

Jonathan J. Gilbert (born April 28, 1967) is an American former television and film actor known for his role as Willie Oleson on the TV series Little House on the Prairie.

Personal life
Gilbert was born on April 28, 1967. He is the adopted son of actors Barbara Cowen (née Barbara Crane) and Paul Gilbert and adopted brother of actresses Melissa Gilbert and Sara Gilbert.

In Melissa Gilbert's autobiography, she wrote that when Jonathan was 18, he moved away from California and she had no relationship with him since then, for reasons supposedly unknown to her. Her autobiography states that he is a stockbroker living in New York City.

He reunited with his sister, Melissa, and the cast of Little House for the 50th anniversary reunion of the show in Simi Valley, CA on March 22, 2024.

Acting career
Gilbert is best known for his performance as Willie Oleson on the NBC TV series, Little House on the Prairie, from 1974 to 1983. He is also one of only six actors on Little House on the Prairie to appear throughout the entire series, along with Melissa Gilbert, Katherine MacGregor, Richard Bull, Kevin Hagen, and Dabbs Greer. In 1979, Gilbert was in the made for TV movie The Little House Years also as Willie Oleson. Also in 1979, he was in the made-for-TV Movie The Miracle Worker as Jimmy.

He was in two out of the three made-for-TV movies based on the Little House on the Prairie TV series (Little House: Look Back to Yesterday and Little House: The Last Farewell).