Besides Homer, Marge, Bart, Lisa and Maggie Simpsons, there are about 200 recurring characters in the long-running TV show The Simpsons. But unless you're a big Simpsons fan, you'd probably be surprised to learn that a huge majority of them are voiced by just a dozen actors. What's even more amazing is that 3 of them - Dan Castellaneta, Hank Azaria, and Harry Shearer - play more than 70 characters.
Jishai of Dadaviz charted the characters the actors play in this neat graph. Just think about it: how in the world do the actors keep them all straight?