June Lockhart, who embodied television’s quintessential mother in “Lassie” and later the scientist-matriarch in “Lost in Space,” died on October 23, 2025, at her home in Santa Monica, California, at age 100, according to a family spokesperson who said she passed of natural causes. Born June 25, 1925, in New York City to actors Gene and Kathleen Lockhart, she made an early film appearance in “A Christmas Carol” (1938) and rose to national fame as Ruth Martin on “Lassie” (1958–64) before starring as Maureen Robinson in “Lost in Space” (1965–68).
Across eight decades, Lockhart amassed scores of screen and stage credits and won a Tony Award in her early 20s for “For Love or Money,” before becoming a fixture of American TV culture. Tributes highlighted her space advocacy and enduring connection with NASA fans, while obituaries noted survivors including her daughters, actress Anne Lockhart and June Lockhart-Triolo. News of her death was confirmed by major outlets on October 25, 2025.
