In the 1932 Fleischer Studios Betty Boop cartoon “Minnie the Moocher,” Betty and her puppy friend Bimbo run away from home. They take shelter in a cave, only to be confronted by terrifying supernatural beings… one of whom is Cab Calloway in the form of a walrus ghost who moves in weirdly human manner.
Cartoon legend Max Fleischer invented the Rotoscoping technique and used it to animate bandleader Calloway into the cartoon with uncanny results..