June Lockhart, Beloved Mom on ‘Lassie’ and ‘Lost in Space,’ Dies at 100

June Lockhart, Beloved Mom on ‘Lassie’ and ‘Lost in Space,’ Dies at 100

A Tony Award winner and daughter of actor Gene Lockhart, she also starred in 'Meet Me in St. Louis' and 'Petticoat Junction.'

June Lockhart, affectionately known as Lassie’s mom to a generation of Baby Boomers for her portrayal of Ruth Martin on the long-running series, has died.

Lockhart, famous for playing other nurturing characters on two other CBS shows in the 1960s — the matriarch on the sci-fi drama Lost in Space and the “lady doctor” on the rural sitcom Petticoat Junction — died Thursday of natural causes at her home in Santa Monica, a family spokesperson announced.

June Lockhart was a Tony Award winner.

Author's summary: June Lockhart died at 100.

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The Hollywood Reporter The Hollywood Reporter — 2025-10-26

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