Ay, caramba! Nancy Cartwright, the iconic voice of Bart Simpson and other characters from “The Simpsons,” will pull back the curtain on the long-running animated hit show in her first podcast.

Homer Simpson, Nelson Muntz, Kearney Zzyzwicz, Bart Simpson, Jimbo Jones, Dolph Starbeam and Milhouse Van Houten. 20thCentFox/Courtesy Everett Collection The main voice cast of “The Simpsons ...