Web Reference: Jonathan Bion Provost (born March 12, 1950) is an American actor, best known for his role as young Timmy Martin in the CBS series Lassie. Provost was born in Los Angeles. At the age of four, Provost was cast in the film The Country Girl (1954), starring Bing Crosby and Grace Kelly. Actor: Lassie. Forever associated with a heroic TV collie whom he frequently had his arms lovingly wrapped around, blond tyke Jon Provost actually was a veteran performer by the time he won the role of "Timmy Martin" at age seven in the series Lassie (1954). The only official web site for Jon Provost, child actor best known as Timmy on Lassie. Personal recollections, rare photos & memorabilia to see and to buy.
YouTube Excerpt: 'Lassie' star
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Actor Jon Provost - Latest Information & Updates 2026 Information & Biography
Details: $45M - $64M
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Last Updated: April 3, 2026
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