I'm amazed that Lassie pulled off those weekly feats of derring-do. How confusing it must have been. First, they kept calling "Lassie, come here, girl" when the dog was, in fact, a male. Actually, six of them all trained by Rudd Weatherwax.
Then, just when Lassie would get used to one family's little quirks, along would come another. Only Doc Weaver (Arthur Space) and Lassie survived from one family to the next.
Lassie's first family was Jeff Miller (Tommy Rettig), his widowed mother Ellen Miller (Jan Clayton) and Gramps (George Cleveland.)
The Millers moved to the city and left Lassie with his second family. Timmy (Jon Provost) as Timmy Martin must have been as confused as Lassie because after the first year, his parents morphed from Cloris Leachman to June Lockhart as Ruth Martin, and Jon Shepodd to Hugh Reilly as Paul Martin.
Then, the Martins moved to Australia where they quarantine dogs entering the country. So Lassie lives with a couple of forest rangers. Now off the farm he has a broader base of people to save and in the final seasons, he didn't need an owner at all. Hey, he never did.
(Posted by Stephen Strong)