Pluto and Fifi are Disney characters, with Fifi being the love interest of Minnie Mouse's pet dog, Pluto. Fifi is a mischievous brown dog with black ears who first appeared in the 1933 Mickey Mouse cartoon Puppy Love. She has also appeared in The Dognapper (1934) and Mickey's Polo Team (1936). Pluto and Fifi have five puppies, including Pluto Jr.