Introduction: Pluto's Tale FEATURED CARTOONS Pluto's Playmate (1941) T-Bone for Two (1942) Rescue Dog (1947) Pluto's Surprise Package (1949) Sheep Dog (1949) Cold Turkey (1951) Plutopia (1951) ...

Fact checked by Sarah Scott We likely all know those iconic mouse ears to be the one and only Mickey Mouse, and Mickey Mouse ...

Pluto the planet came first. Pluto the pup made is debut in the Disney cartoon "The Chain Gang" in 1930, but was unnamed. Mickey's canine pal woudn't be callled Pluto until the following year.