49 Lost in Space actors, who have passed away

As time marches on, the stars of classic television gradually fade into memory, leaving behind legacies that continue to inspire generations. Lost in Space (1965–1968), a pioneering science fiction series that captured the imagination of millions, is no exception. As of 2025, the entertainment world mourns the loss of 49 actors who once brought life to its colorful characters, guest stars, and otherworldly beings. Their deaths serve as a poignant reminder of the passage of time and the lasting impact of a series that ventured beyond Earth, yet touched so many hearts here at home. #LostinSpace