Timmy Martin

Timmy Martin is a fictional character portrayed by child actor Jon Provost in the long-running television series Lassie (1954–1973). Provost debuted in the first episode of the fourth season, "The Runaway" (1957), as the fictional foster child of farm woman Ellen Miller. Both the character and its portrayer were hits with the show's audience. In the middle of the fourth season series star George Cleveland died unexpectedly and producers were forced to overhaul the show. Timmy was adopted by newcomers to the series Paul Martin and his wife, Ruth, who purchase the Miller farm.

Once the Timmy years of the show were launched, Lassie enjoyed its highest ratings, with Timmy appearing in all 226 episodes between his debut and his final appearance in the first episode of the 1964-1965 season. The Timmy character appeared in comic books, novels, Viewmaster reels, and other spinoff materials related to the show. Provost briefly reprised the character as an adult Timmy in the syndicated series, The New Lassie (1989–1990). Jon Provost was nominated in 2003 for a TV Land award connected to his participation in Lassie.