Pluto first appeared as a nameless bloodhound tracking the escaped convict Mickey in the film The Chain Gang (September 1930).[12] A month and a half later, Pluto appeared as Minnie Mouse's dog named Rover who comes along with her and Mickey on a picnic. By his third appearance, in The Moose Hunt (1931), Pluto is Mickey's pet, now named "Pluto".[3]
