June Lockhart Dies at 100: ‘Lost in Space’ Costar Bill Mumy Reflects on the TV Icon

On October 25, 2025, June Lockhart, star of Lassie, Lost in Space, Petticoat Junction, and so much more, passed away at the age of 100 from natural causes. In June 2025, just weeks before her 100th birthday, ReMIND spoke with Bill Mumy, her Lost in Space costar, to discuss his memories of the beloved actress, who had been a staple of the big and small screen since Hollywood’s Golden Age. Lockhart thrilled generations of fans, with a career that lasted for almost 90 years. For so many Americans, she felt like part of the family, the mother we never had