Bill Mumy, star of ‘Lost in Space’, delivers a poignant tribute to his late TV mother, June Lockhart, who passed away at 100. This article dives into Lockhart’s iconic career, her surprising love for rock and roll, and the lasting bond she shared with her co-stars, celebrating a legendary actress who truly “did it her way.”
The classic film community is mourning the loss of a true television icon, June Lockhart, who passed away on October 23, 2025, at the remarkable age of 100. Best known for her beloved portrayals of nurturing mothers in enduring series like ‘Lassie’ and ‘Lost in Space’, Lockhart’s death marks the end of an almost 90-year career that captivated generations.
Following her passing, her ‘Lost in Space’ son, Bill Mumy, shared a heartfelt tribute, offering fans a glimpse into the extraordinary woman behind the comforting on-screen persona. Mumy’s message highlighted not only Lockhart’s talent but also her adventurous spirit and surprising private passions.
A Son’s Poignant Farewell
On October 25, Bill Mumy, 71, took to his Instagram page to honor his cherished TV mom. Sharing a still from ‘Lost in Space’ alongside a more recent reunion photo, Mumy’s caption resonated deeply with fans.
“Goodbye to the brilliant June Lockhart,” he wrote. “A one-of-a-kind, talented, nurturing, adventurous, and non-compromising Lady. She did it her way. June will always be one of my very favorite moms. 100 years here. Wow! R.I.P. 👍🏼✌️❤️🙏🏻.”
This tribute followed Mumy’s celebration of Lockhart’s 100th birthday earlier in June, where he posted a series of photos and hailed her as “the mighty June Lockhart… What a gal! She is truly special! Onward.” The deep bond between the two actors spanned over six decades, a testament to the family atmosphere fostered on the sets of their iconic shows.
The Quintessential TV Mother: From Farm to Far-Off Galaxies
June Lockhart’s career was defined by her ability to embody warmth and compassion, making her a comforting presence in American households. She first endeared herself to millions as Ruth Martin, the adoptive mother of Timmy, in ‘Lassie’ from 1958 to 1964. Her portrayal earned her a reputation as a compassionate and understanding figure.
She then ventured into outer space, joining the cast of ‘Lost in Space’ from 1965 to 1968 as Dr. Maureen Robinson, the biochemist matriarch of the space-faring Robinson family. In this CBS sci-fi series, she navigated extraterrestrial adventures alongside Mumy, who played her son Will, further cementing her status as a beloved on-screen mother.
Beyond these two iconic roles, Lockhart’s extensive filmography included appearances in ‘Petticoat Junction’, the soap opera ‘General Hospital’, ‘Knots Landing’, and ‘The Colbys’. Her early career also saw her in numerous films from Hollywood’s Golden Age, including ‘Meet Me in St. Louis’ and ‘Son of Lassie’, where she played the adult version of a role previously held by Elizabeth Taylor.
The Unexpected Rock & Roll Rebel
What truly made June Lockhart a fascinating figure to her colleagues and fans was the stark contrast between her wholesome public image and her vibrant, adventurous private life. As Bill Mumy revealed in several interviews, Lockhart was far from the conservative, matronly characters she often portrayed.
“She was enamored with David Bowie. And she is a real rock and roller at heart,” Mumy once shared. He elaborated on this surprising fact, describing her as “like genius level brilliant, she’s a rock ’n’ roll gal. She loves rock and roll music, and she loves rock and roll bad boys.”
Mumy even recounted how, in the 1980s, Lockhart carried a picture of David Bowie in her wallet. Further illustrating her adventurous spirit, he revealed she had hired The Hourglass (later known as The Allman Brothers Band) to play a party at her home in 1967 and took him and co-star Angela Cartwright to the legendary Whisky A-Go-Go in the “Summer of Love” to hang out with the band, as he detailed in a Television Academy Foundation interview.
Her television daughter, Angela Cartwright, echoed this sentiment, remembering Lockhart as “so smart, quick, and funny — she filled her 100 years with curiosity, laughter, and rock ‘n’ roll.” Off-screen, Lockhart herself embraced adventure, preferring activities like driving army tanks, flying in hot air balloons, and plane-gliding over the serene image she projected.
A Lasting Connection and Enduring Legacy
Even in her later years, June Lockhart remained engaged with the world. Bill Mumy told Remind magazine in June 2025 that he received updates from her daughter, confirming Lockhart was still at home, following politics, and reading the news daily.
Lockhart’s passing at her home in Santa Monica, California, from natural causes, was confirmed by family spokesperson Lyle Gregory. He noted her happiness until the very end, highlighting her continued interest in current events. Her father, Gene Lockhart, was also a prolific character actor, making her a second-generation Hollywood talent.
June Lockhart’s legacy extends beyond her memorable performances. She was an individual who gracefully balanced a public image of maternal comfort with a private life filled with zest, curiosity, and an undeniable love for rebellion and rock and roll. She remains a beloved figure, not just for the characters she brought to life, but for the remarkable way she lived her own.
