June Lockhart, Lassie and Lost in Space Actress, Dies at 100 — A Golden Age Icon Remembered

Hollywood is mourning the loss of one of its last remaining stars from the Golden Age. Beloved actress June Lockhart, best known for her roles in Lassie and Lost in Space, has died at the age of 100.

The legendary star passed away on Thursday, October 23, 2025, at 9:20 p.m. in Santa Monica, California, according to PEOPLE. Her cause of death was confirmed as natural causes. At her bedside were her daughter June Elizabeth and granddaughter Christianna, who lovingly said their goodbyes.

Her family has announced that funeral services will be private, asking that donations be made to The Actors Fund, ProPublica, and International Hearing Dog, Inc. instead of sending flowers — honoring Lockhart’s lifelong devotion to the arts and philanthropy.

June Lockhart for ‘Lost in Space’ in 1965.

A Hollywood Career That Spanned Nearly a Century

Born in New York City in 1925, June Lockhart was destined for the spotlight. The daughter of actors Gene and Kathleen Lockhart, she made her stage debut at age 8 in the Metropolitan Opera’s production of Peter Ibbetson.

Her first film role came in A Christmas Carol (1938), where she played the daughter of Bob Cratchit, acting alongside both of her parents. Recalling the experience, she once said, “I thought my parents were wonderful as the Cratchits — and it was just great fun to see how a film was made.”

She would go on to appear in classic films such as Meet Me in St. Louis (1944), All This, and Heaven Too, Sergeant York, and She-Wolf of London.

Lockhart’s Broadway career included performances in For Love or Money (1947), which earned her a Tony Award for Outstanding Performance by a Newcomer, and The Grand Prize (1955).

From Lassie to Lost in Space — A Television Legacy

Lockhart began appearing on television in the late 1940s, quickly becoming a familiar face in American households. In 1958, she joined the cast of Lassie as Ruth Martin, Timmy’s devoted mother. Her warm, graceful performance made her a household favorite and earned her Emmy nominations in 1953 and 1959.

After Lassie, she starred in the hit sci-fi adventure Lost in Space (1965–1968), portraying Maureen Robinson, the nurturing matriarch of a family stranded among the stars. Lockhart later appeared in Netflix’s 2021 reboot of the series with a voice cameo — a fitting tribute to her enduring legacy.

She also appeared in dozens of popular shows over the decades, including Petticoat Junction, Magnum, P.I., Murder, She Wrote, Full House, Grey’s Anatomy, and Babylon 5. In total, Lockhart earned over 150 film and television credits across her remarkable career.

A Passion for Space, Science, and the Arts

Beyond acting, June Lockhart had a lifelong fascination with space exploration. In 2014, NASA honored her with the Exceptional Public Achievement Medal for her decades of advocacy. “I’ve been to two space shuttle launches and worked with NASA since the 1970s,” she said proudly.

She also had the rare honor of receiving two stars on the Hollywood Walk of Fame — one for film and one for television — both dedicated in 1960.

Remembering a Life Fully Lived

Lockhart’s warmth and intelligence extended far beyond the screen. Known for her wit, adventurous spirit, and love of music, she once said, “I love rock ‘n’ roll and going to concerts… I’ve driven tanks, flown hot-air balloons, and gone plane-gliding. I do lots of things that don’t go hand-in-hand with my image.”

Her life was defined by curiosity, courage, and compassion — a reflection of the very qualities that made her so beloved by audiences for more than eight decades.

June Lockhart leaves behind a legacy that will continue to shine in Hollywood history — a symbol of grace, strength, and timeless talent.