A: The white gloves were added to Mickey’s hands in When the Cat’s Away (1929), the film made after The Opry House. John Grant, in his Encyclopedia of Walt Disney’s Animated Characters, quotes Walt Disney as saying, “We didn’t want him to have mouse hands, because he was supposed to be more human. So we gave him gloves.” The white gloves against a black body indeed provided a necessary contrast to the black hands that were utilized in the first few cartoons, so the gloves continued to be used thereafter.