1989 saw ten people become Disney Legends, one of whom was this man. This man was Walt Disney's oldest and longest working collaborator, starting with Disney in Kansas City before moving with Walt to Disney Studios as an animator. Identify this man who is credited as Mickey Mouse's co-creator, and co-director, co-writer, and principal animator of Steamboat Willy; a man who was usually known by an unusual two letter name.
(Ubbe) "Ub" Iwerks