Who is reportedly the only major Disney character with an official middle name?

Donald Duck first appeared on the silver screen on June 9, 1934, in the animated short film, The Wise Little Hen, dancing to the Sailor's Hornpipe. He has gone on to star in seven feature films--which is more than any of his Disney counterparts. He is six years younger than Mickey Mouse.

His middle name is Fauntleroy (first revealed in the 1942 film Donald Gets Drafted), and he is reportedly the only major Disney character with an official middle name. He has a twin sister named Dumbella. In the late Thirties, Donald was joined by his perennial girlfriend, Daisy Duck, and by his three mischievous nephews, Huey, Dewey, and Louie.

Walt Disney said of the character: "One of the greatest satisfactions in our work here at the studio is the warm relationship that exists within our cartoon family. Mickey, Pluto, Goofy, and the whole gang have always been a lot of fun to work with. But like many large families, we have a problem child. You’re right, it’s Donald Duck.”