Pluto (formerly known as Pluto the Pup) is an animated cartoon character made famous in a series of Disney short cartoons. He has most frequently appeared as Mickey Mouse's pet dog. He also had an independent starring role in a number of Disney shorts in the 1930s, 1940s and 1950s. Pluto is unusual for a Disney character in that he is not anthropomorphized beyond showing an unusually broad range of facial expressions or use of his front paws at key points; he is actually represented as a normal dog (unlike Goofy who is an anthropomorphic dog).
His first comics appearance was in the Mickey Mouse daily strips in 1931 two months after the release of the Moose Hunt cartoon. Pluto Saves the Ship, a comic book published in 1942, is one of the first Disney comics prepared for publication outside newspaper strips. However, not counting a few cereal give-away mini-comics in 1947 and 1951, he did not have his own comics title until 1952.