Here is a great video about Walt Disney’s Goofy character. Art Babbitt wrote notes about Goofy for the animators to think about when working on him. The notes form the narration over some classic Goofy clips. It is an invaluable look into how well thought out Disney’s characters are. They include concepts of both his interior mental operation, and how his body should be posed and moved. Putting these ideas into words helps define how a character is different from others and helps keep them consistent.