Here are some 5 fun facts:
There is a hidden Mickey Mouse “spot” (shaped like Mickey’s head) in most of the characters.
The villain's personality and mannerisms were inspired by actress Tallulah Bankhead.
Someone did a frame-by-frame count of all the spots in the movie. The total: 6,469,952.
The spots on Lucky’s back are arranged in a horseshoe shape.
Dodie Smith, the author of the novel on which the movie was based, got the idea when her dog gave birth to 15 puppies.
Answer: Glen Close in Disney’s 101 Dalmatians