Is there a lady who does all the voices of The Simpsons?

No, there is no single lady who does all the voices of The Simpsons.

The Simpsons has a large cast of voice actors, with each character having their own dedicated voice actor.

Here are some of the key voice actors:

* Dan Castellaneta: Homer Simpson, Abe Simpson, Krusty the Clown, Barney Gumble, etc.

* Julie Kavner: Marge Simpson, Patty Bouvier, Selma Bouvier, etc.

* Nancy Cartwright: Bart Simpson, Nelson Muntz, Ralph Wiggum, etc.

* Yeardley Smith: Lisa Simpson

* Harry Shearer: Mr. Burns, Ned Flanders, Principal Skinner, etc.

While there are some female voice actors on the show, no single woman does all the voices.