Original Appearances: Walt Disney cartoons, beginning with “The Chain Gang” (1930)
Other Appearances: All kinds of merchandise, comic books, TV shows, etc.!
Biography: Most often cast as Mickey Mouse's pet dog, Pluto is a rarity in Disney cartoons... a dog that is treated as a dog, and not as a person (as Goofy is). He's credited as being one of the first cartoon characters that is shown to have thought processes through the use of character animation.
Powers: None, unless you count the aggressive stick-to-it attitude that Pluto is shown to have, going after his goals no matter what gets in his way (most of the time, anyway).
Group Affiliation: Not named per se, but Pluto had a group of friends in some of his solo cartoons that included Fifi the Peke, Dinah the Dachshund, and Ronnie the St. Bernard puppy.
Miscellaneous: In “The Chain Gang,” Pluto is not named at all, and in “The Picnic” (1930), he's called “Rover.” It was in “The Moose Hunt” (1931) that he's given the name “Pluto the Pup.”