Fun and Fancy Free
Disney had provided the voice for Mickey Mouse since his debut in 1928, and "Fun and Fancy Free" was the last time he would voice the role regularly, as he no longer had the time or energy to do so. Disney recorded most of Mickey's dialogue in the spring and summer of 1941. Sound effects artist Jimmy MacDonald would become the character's new voice actor, starting in 1948. Disney, however, did reprise the role for the introduction to the original 1955–59 run of "The Mickey Mouse Club".
Mickey Mouse
"The Cactus Kid" (April 11, 1930) was the last film to be animated by Ub Iwerks at Disney. Shortly before the release of the film, Iwerks left to start his own studio, bankrolled by Disney's then-distributor Pat Powers. Powers and Disney had a falling out over money due Disney from the distribution deal. It was in response to losing the right to distribute Disney's cartoons that Powers made the deal with Iwerks, who had long harbored a desire to head his own studio. The departure is considered a turning point in Mickey's career, as well as that of Walt Disney. Walt lost the man who served as his closest colleague and confidant since 1919. Mickey lost the man responsible for his original design and for the direction or animation of several of the shorts released till this point. Advertising for the early Mickey Mouse cartoons credited them as "A Walt Disney Comic, drawn by Ub Iwerks". Later Disney Company reissues of the early cartoons tend to credit Walt Disney alone.