Lost in Space & Lassie Star June Lockhart Dies at 100

June Lockhart, the beloved actress whose warm demeanor and intelligent portrayals captivated audiences for decades, particularly as matriarchs in the iconic television series ‘Lost in Space’ and ‘Lassie,’ has passed away at the age of 100. Her death on October 23, 2025, in Santa Monica, California, marks the end of a remarkable career spanning nearly eight decades in film, television, and theater. Lockhart became a familiar and comforting presence in countless homes, embodying strength, kindness, and resilience across various memorable roles.

Early Life and A Budding Career in Hollywood

Born on June 25, 1925, in New York City, June Lockhart was destined for the spotlight. She was the daughter of two acclaimed actors: Gene Lockhart and Kathleen Lockhart. Her upbringing in a theatrical family undoubtedly shaped her early ambitions. She made her feature film debut at a young age, appearing alongside both her parents in the 1938 film “A Christmas Carol” as Belinda Cratchit. This early exposure to the silver screen paved the way for a consistent presence in Hollywood.

Throughout the 1940s, Lockhart established herself as a versatile actress in numerous films. Notable appearances included “All This, and Heaven Too” (1940), “Sergeant York” (1941), and perhaps most famously, the classic musical “Meet Me in St. Louis” (1944). Her role in “The Yearling” (1946) further showcased her dramatic capabilities.

Becoming America’s Favorite Foster Mother in ‘Lassie’

While her film career was robust, it was television that would cement June Lockhart’s place in the hearts of millions. From 1958 to 1964, she starred as Ruth Martin, the compassionate foster mother to Timmy and, of course, the famous collie, Lassie, on the popular CBS series ‘Lassie.’

Lockhart took over the role from Cloris Leachman, seamlessly transitioning into the character as the Martin family relocated to a farm. Her portrayal of Ruth Martin was one of nurturing warmth and quiet strength, making her an ideal maternal figure for the beloved children’s show. Her performance earned her an Emmy nomination for Best Actress in a Leading Role in a Dramatic Series, a testament to her widespread appeal and talent.

Navigating the Cosmos as Dr. Maureen Robinson in ‘Lost in Space’

Following her success on ‘Lassie,’ June Lockhart embarked on another iconic television journey. From 1965 to 1968, she captivated audiences as Dr. Maureen Robinson in the science fiction adventure series ‘Lost in Space.’

In this role, Lockhart portrayed a brilliant biochemist and the loving mother of three, stranded in deep space along with her family. Her character was a pillar of intelligence and composure amidst the unpredictable challenges of interstellar travel. ‘Lost in Space’ offered a different kind of maternal figure – one who was scientifically adept and resourceful, guiding her family through alien encounters and technological mishaps. Lockhart herself expressed a particular fondness for her time on the show, reportedly enjoying its campy nature and her close relationships with her co-stars.

A Career Defined by Versatility and Longevity

Beyond her two most famous television roles, June Lockhart maintained an active and diverse career that stretched into her 80s. She made recurring appearances on shows such as “Petticoat Junction,” “General Hospital,” and “Beverly Hills, 90210.” Her extensive list of guest appearances reads like a history of American television, with roles on “The Beverly Hillbillies,” “Happy Days,” “Full House,” “Roseanne,” and “Grey’s Anatomy,” among many others.

Lockhart also demonstrated her talents on the Broadway stage, earning a Special Tony Award for Outstanding Performance by a Newcomer in 1948 for her role in “For Love or Money.” Her contributions to both film and television were recognized with two stars on the Hollywood Walk of Fame, one for each medium.

A Lasting Legacy

June Lockhart’s passing at 100 years old marks the departure of a true Hollywood veteran. Her ability to transition seamlessly from dramatic film roles to beloved television characters, and her enduring presence on screen for nearly eight decades, speaks volumes about her talent and dedication. She leaves behind a legacy of memorable performances that continue to entertain and inspire new generations, solidifying her status as a cherished figure in entertainment history.