The Simpsons are the longest-running prime-time animated series in television history. The question we ask today is: Do you really want to know who are the faces behind Homer, Marge, Grandpa, Patty, Selma, Lisa and Bart Simpson, Moe, Barney, Abdul, Flanders, Quimby, Skinner, Wiggum, Nelson, Wolfcastle, Crusty, Burns & Smithers? Bart is surprising!