Skippy the terrier was one of the most popular animal actors of the 1930s. Skippy is best known playing Asta on the Thin Man movies.

Benji played "Dog" on Petticoat Junction before becoming a big-screen star in Benji.

Lassie was a popular film and television canine for many decades (yes, there were multiple "Lassies").

Bamboo Harvester gained television fame playing Mister Ed on the 1960s comedy of the same name. Ed's co-star, Alan Young, played his owner Wilbur Post.

Arnold the television-watching "son" of Mr. and Ziffel on Green Acres demonstrated that pigs could steal the scene too!