The Magic Kingdom theme park, at the Walt Disney World Resort in Florida, is actually built on the
second level. The first level is cleverly concealed so that it can be used for maintenance, costuming, office space, employee break rooms, and waste removal, among many other things. This is known as the
Utilidors. Most park guests are unaware of this secrete underworld. However, upon request, anyone over the age of 16 can take a backstage tour that provides you with a first-hand view of this intricate 'not so magical' operation (it's well worth the cost, IMO).
The iconic balloon vendors on Main Street USA, at the Magic Kingdom park, are not employed by Walt Disney World Co. They actually work for a company called Rubio Arts. (they also employ all the caricature and silhouette artists throughout the Walt Disney World Resort)
Masked character performers are not allowed to speak to resort guests unless they are portraying a "face character", such as Aladdin, Snow White, Peter Pan, etc (their conversations must stay in character at all times).
Unlike the Disney resorts in California, Florida, Paris, Shanghai and Hong Kong, the resort in Tokyo is
not owned by the Walt Disney Company. It is owned by a separate company which licenses the themes from the Walt Disney Company.