These are a couple charts created by @Jishai that show the number of characters voiced by each actor on The Simpsons and South Park.
Simpsons voice actors Dan Castellaneta, Hank Azaria and Harry Shearer voice 73 voices between them while over at South Park Trey Parker does an incredible 32 voices with slackers Matt Stone and Mona Marshall only doing a mere 23 voices each. Not to be outdone, that friend you have can do almost all the voices on the chart but you only care about that when you are drunk with him at a party. What’s wrong with you? He just wants to be closer with you! And he actually is a really smart and fun guy if you give him a chance. So next time you hang you gotta promise me you’ll hang out and talk with him for at least 10 minutes. Okay? OKAY?? okay.
Enjoy the chart!